Rockford Fosgate M2-500X1 M2 Series 500 Watt Mono Class-D Element Ready Marine Amplifier
A marine grade 500W mono Class-D subwoofer amplifier delivering 500W x 1 at 2-ohm (CTA-2006 rated). Features C.L.E.A.N. gain calibration, continuously variable Punch EQ with up to 18dB of bass boost at 45Hz, variable infrasonic filter, RCA pass-thru outputs, RLC remote level control, NOMAD speaker protection, Rollback Protection, conformal coated circuit board, and UV stable powder coated cast aluminium heatsink. Backed by a 2 year warranty.
Product Overview
The Rockford Fosgate M2-500X1 is a 500W mono Class-D marine amplifier from the M2 Element Ready series, designed for those who want reliable Rockford Fosgate performance in the marine environment at an accessible price point. Rated continuous power is 300W x 1 at 4-ohm and 500W x 1 at 2-ohm (CTA-2006, less than 1.0% THD+N). Dynamic power via PowerCube reaches 350W at 4-ohm and 590W at 2-ohm.
As a dedicated mono subwoofer amplifier, the M2-500X1 operates across a frequency range of 20Hz-250Hz. The circuit board is conformal coated to protect electronics from dust and water, and the UV stable powder coated cast aluminium heatsink provides protection against the marine environment without requiring a full IP-rated enclosure. Zinc nickel-plated marine grade brass connection terminals resist corrosion at the connection points.
The continuously variable onboard Punch EQ delivers up to 18dB of boost at 45Hz for added bass output from the subwoofer. The variable infrasonic filter is tunable from 15Hz to 40Hz at 12dB/octave, protecting subwoofer drivers across a wider range than a fixed infrasonic filter. RCA pass-thru outputs allow downstream amplifier chaining. An RLC remote level control is included for in-cabin volume adjustment without returning to the amplifier. Auto-Sense turn-on via high-level input removes the need for a dedicated remote wire, with a bypass switch available for vehicles with Retained Accessory Power (RAP) systems. The M2-500X1 is optimised using the AudioGraph PowerCube measurement tool and RATS tested for quality and performance. MEHSA4 heat management, NOMAD speaker protection, and Rollback Protection are all applied.
Features & Benefits
Class-D Mono - Efficient Power Delivery for Subwoofers: The M2-500X1 uses Class-D topology, which is highly efficient at reducing current demand on the vessel's electrical system compared to traditional Class-A/B designs, while delivering 500W RMS at 2-ohm to a marine subwoofer.
Continuously Variable Punch EQ - Up to 18dB at 45Hz: The onboard Punch EQ provides up to 18dB of continuously adjustable bass boost at 45Hz, allowing the subwoofer output to be tuned precisely to the acoustic characteristics of the installation without a separate equaliser or DSP.
Variable Infrasonic Filter - 15Hz to 40Hz Tunable: The infrasonic filter is tunable from 15Hz to 40Hz (12dB/octave Butterworth), providing a wider adjustment range than a fixed infrasonic filter and allowing precise protection for different subwoofer drivers and enclosure types.
C.L.E.A.N. Technology - Precision Gain Calibration: C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented circuit with dedicated input and output clip indicator LEDs, enabling precise gain calibration at setup to maximise output while minimising distortion.
RLC Remote Level Control Included: An RLC remote level control is included in the box, allowing subwoofer output volume to be adjusted from the helm or seating position without returning to the amplifier mounting location.
RCA Pass-Thru Outputs for Downstream Chaining: RCA pass-thru outputs are active with both RCA and high-level input, allowing the signal to be passed to an additional amplifier in the system without signal degradation.
Rollback Protection - Output Device Preservation: Rollback Protection dynamically reduces amplifier demand during sustained high-output conditions, protecting the output devices from thermal stress without triggering a full protect shutdown.
NOMAD, MEHSA4, and Conformal Coated Circuit Board: NOMAD provides real-time protection against shorted speaker wires and dangerously low impedances. MEHSA4 (Maximum Efficiency Heat Sink Application) reduces MOSFET temperatures and extends device life. The conformal coated circuit board provides protection against dust and water ingress at the PCB level.
Technical Specs
Specification
Detail
SKU
M2-500X1
Number of Channels
1 (Monoblock)
Total Power
500W
Rated Power - 4-ohm (CTA-2006, less than 1.0% THD+N)
300W x 1
Rated Power - 2-ohm (CTA-2006, less than 1.0% THD+N)
500W x 1
Dynamic Power - 4-ohm (PowerCube)
350W x 1
Dynamic Power - 2-ohm (PowerCube)
590W x 1
Circuit Topology
Class-D
Bridgeable
No
Frequency Response
20 Hz - 250 Hz
THD + Noise
Less than 1.0% at 4-ohm and 2-ohm
Input Sensitivity
Low-Level: 150mV - 4V / High-Level: 450mV - 12V
Signal Input
Low-Level: 2 x RCA / High-Level: 4-Pin Molex
Signal Output
2 x RCA Pass-Thru (active with RCA or High-Level input)
Tone Controls
Punch EQ: 0 to +18dB at 45Hz (Continuously Variable)
Low-Pass Crossover
50 Hz - 250 Hz at 12dB/Octave Butterworth
Infrasonic Filter
15 Hz - 40 Hz at 12dB/Octave Butterworth (Variable)
Remote Controls
Yes (RLC Remote Level Control included)
Auto-Sense Turn-On
Yes (with RAP bypass switch)
Power Wire Gauge
4 AWG
Power Input Connector
Compression Terminal Block
Speaker Wire Gauge
8 AWG
Speaker Output Connector
Compression Terminal Block
Terminals
Zinc Nickel-Plated Marine Grade Brass
Cooling
Convection
Heatsink
UV Stable Powder Coated Cast Aluminium (Focused Mass)
Circuit Board Protection
Conformal Coated
Operating Voltage
9 - 16 VDC
Recommended Fuse (not included)
80A
Max Current Draw at 13.8V Sinewave
52A
Visual Indicators
Power/Protect / C.L.E.A.N. In / C.L.E.A.N. Out
Dimensions (H x W x D)
49 x 173 x 215mm (1.9 x 6.8 x 8.5 inch)
Shipping Weight
2.18kg
CTA-2006 Compliant
Yes
Quality Testing
RATS (Rockford Automated Testing System)
Warranty
2 Years
Compatible With / Goes Well With
The M2-500X1 is suited to marine watercraft, pontoon boats, and powersports applications requiring a reliable mono subwoofer amplifier at an accessible price point. It is compatible with subwoofers rated for 300-500W RMS at 4-ohm or 2-ohm. For higher output marine mono amplification, refer to the M5-1000X1.
Goes Well With:
M212S4 - Rockford Fosgate M2 series 12 inch 4-ohm marine subwoofer, a straightforward pairing with the M2-500X1 at 300W RMS rated output at 4-ohm
M210S4B - M2 series 10 inch 4-ohm marine subwoofer in black for a compact pairing with the M2-500X1
M2D2-10SB - M2 series 10 inch DVC Color Optix sealed marine subwoofer, compatible via the VersaSwitch 4-ohm series setting
M5-1000X1 - Higher output M5 series 1000W marine monoblock amplifier for builds requiring more headroom beyond the M2-500X1's 500W capability
M2-300X4 - Companion M2 series 4-channel amplifier for full system builds pairing the M2-500X1 on subwoofer duty with the M2-300X4 powering full-range speakers
RFW4R / RFW4B - Rockford Fosgate 4 AWG amplifier wiring kits (red or black) matched to the M2-500X1's 4 AWG power wire requirement
Frequently Asked Questions
What is the difference between the M2-500X1 and the M5-1000X1?
The M2-500X1 is a 500W mono Class-D marine amplifier from the M2 Element Ready series, rated at 300W at 4-ohm and 500W at 2-ohm. The M5-1000X1 is a 1000W mono Class-BD marine amplifier from the premium M5 series, rated at 500W at 4-ohm, 750W at 2-ohm, and 750W at 1-ohm, with IPX6 water intrusion rating, greater than 80% efficiency, and the PRESET feature for UTV kit compatibility. The M2-500X1 is the more accessible option for builds where 500W output is sufficient; the M5-1000X1 is the step up for higher output requirements and premium marine protection.
What is Rollback Protection and when does it activate?
Rollback Protection is a circuit that dynamically reduces the amplifier's output demand during sustained high-output conditions to prevent thermal stress on the output devices. Unlike a hard protect shutdown, Rollback Protection manages the amplifier's workload in real time, allowing it to continue playing while protecting the internal components from damage during extended periods of high volume.
Does the M2-500X1 need a dedicated remote turn-on wire?
Not necessarily. The M2-500X1 features Auto-Sense turn-on, which activates the amplifier automatically when it detects a high-level (speaker) input signal. This removes the need for a dedicated remote wire when integrating with OEM or aftermarket radios that don't have a separate remote output. An Auto-Sense bypass switch is also included for vessels with Retained Accessory Power (RAP) systems.
Is the variable infrasonic filter adjustable and why does the range matter?
Yes. The infrasonic filter is variable from 15Hz to 40Hz at 12dB/octave. A wider adjustment range gives more flexibility to protect different subwoofer types - drivers with a lower resonant frequency (Fs) benefit from a lower filter setting, while those with a higher Fs are better protected by a higher filter cutoff. This is more versatile than a fixed 30Hz infrasonic filter found on some amplifiers.
What fuse does the M2-500X1 require and is it included?
The M2-500X1 requires an 80A fuse. The fuse is not included in the box and must be sourced separately. Install the fuse as close to the battery as possible in the 4 AWG power supply line to protect the wiring in the event of a short circuit.
Legendary Products & Support From Authorized Dealers
When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & TrainingOnly authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty ProtectionWe offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support.
▸ Reliable Customer SupportIf you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your InvestmentBuying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that?
Choose wisely. Buy from Frankies BrandBeast today!
Stinger 3M Stinger PowerSports Marine 8GA Amplifier Kit: Go With The Right Choice With The Stinger SEA Range Of Amplifier Wiring Kits.Stinger SEA4283 Features: Power Wiring Kit Utilizing Marine-Grade Jacket True Copper For Current Transfer & Tinned Conductors For Reliability In The Harsh Marine Environment Industry First Siamese Pair Dual Power & Ground Wire High Strand Count OFC Hyper-Twist Tinned Conductors Highest Marine-Grade - Type III BC5W2 Compliant Marine PVC Jacket, 1050C Dry, 750 C Wet, Salt, Fog, Oil, Water-Resistance Exceeds UL1426 Marine Standards Element-Resistant MIDI Fuse Holder 8GA 3 Meter / 9.8 Feet / 80 AMP MIDI Fuse Includes Wire Ferrules & Installation Hardware Red Power / Yellow Ground Marine Standard Color Coding Dimensions: 7.29" x 2.25"
Legendary Products & Support From Authorized Dealers
When you choose Stinger, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & Training
Only authorized Stinger dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty Protection:
We offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don't be misled by unauthorized sellers who can't provide genuine warranty support.
▸ Reliable Customer Support:
If you ever run into an issue, you're backed by Stinger's official manufacturer's warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your Investment:
Buying from an authorized dealer ensures you're getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few dollars worth losing all that?
Choose wisely. Buy from an authorized Stinger dealer today!
Maximum BOOM for Your Buck. Marine-Tough to the Core.
Product Overview
The Rockford Fosgate PM1000X1bd is a 1,000 Watt Class-BD mono amplifier purpose-built for marine, motorsport, and powersports environments where maximum bass output and genuine weather protection are non-negotiable. Delivering 300W x 1 at 4 ohms, 500W x 1 at 2 ohms, and a full 1,000W x 1 at 1 ohm, this is the dedicated subwoofer powerhouse of the Punch Marine amplifier range.
What makes the PM1000X1bd different from a standard Class A/B mono amp is its Class-BD circuit topology delivering 75–80% efficiency ratings compared to the 20–60% typical of traditional Class A/B designs. That means more of your electrical power becomes bass output, less of it becomes heat. Combined with a frequency response optimised for 20 Hz to 250 Hz, this amp is exclusively calibrated for mid-bass speakers and subwoofers no wasted bandwidth, no compromises. Its 1-ohm stability makes it easy to wire a pair of 4-ohm DVC subwoofers or a quad configuration of 2-ohm DVC subwoofers directly, without needing a complex impedance calculation or risking amplifier damage. Rockford Fosgate's Element Ready™ construction handles the rest marine-grade two-part epoxy conformal-coated PCB and corrosion-resistant stainless steel hardware keep the PM1000X1bd performing reliably through saltwater spray, corrugated outback tracks, high humidity, and Australian UV.
Key Specifications
1,000W total power output (CTA-2006 compliant)
300W x 1 at 4 ohms | 500W x 1 at 2 ohms | 1,000W x 1 at 1 ohm
Class-BD circuit topology 75–80% efficiency rating
1-ohm stable monoblock; dedicated low-frequency output only
Frequency response: 20 Hz – 250 Hz (±1 dB)
THD+N: Less than 1%
Input sensitivity: 150mV – 12V (low- and high-level)
Low-pass crossover: 50 Hz – 250 Hz @ 12 dB/octave Butterworth
Infrasonic filter: 28 Hz @ 12 dB/octave Butterworth (subsonic protection)
All-Pass: No (low-frequency only)
On-board Punch EQ: Bass +0 to +18 dB @ 45 Hz
RCA pass-through outputs
Optional remote Punch Level Control (PLC2) compatible
Marine-grade two-part epoxy conformal coating on PCB
Marine-grade stainless steel hardware
Element Ready™: Dust, UV, Temperature, Water, Corrosion & Vibration rated
Recommended fuse: 140A x 1 (not included)
Max current draw: 130A at 13.8V sinewave
2-year manufacturer warranty
Features & Benefits
Class-BD Technology Efficiency That Translates to Real Bass Class-BD amplifiers achieve 75–80% power efficiency, compared to the 20–60% typical of Class A/B designs. That gap matters it means more wattage reaches your subwoofers rather than being lost as heat, your electrical system works less hard, and the amp runs cooler in sealed installations. At 1,000W into a 1-ohm load, this efficiency advantage is the difference between a hot, straining amp and one that holds output all day on the water.
1-Ohm Stable Wire More Subs Without Compromise The PM1000X1bd's 1-ohm stability opens up multi-subwoofer configurations that would stress or destroy standard marine mono amps. Run two 4-ohm DVC subs wired in parallel per voice coil (final load: 1 ohm), or four 2-ohm DVC subs in series-parallel (final load: 1 ohm). Maximum cone area, maximum output, one compact amplifier.
Dedicated Low-Frequency Design No Wasted Bandwidth With a frequency response of 20 Hz to 250 Hz, the PM1000X1bd isn't trying to be everything. It's calibrated exclusively for subwoofers and mid-bass drivers, with no all-pass mode and no high-frequency reproduction. Every watt is focused exactly where it needs to be.
Infrasonic Filter at 28 Hz Sub Protection Built In The onboard infrasonic filter rolls off frequencies below 28 Hz at 12 dB/octave. This protects subwoofer cones from damaging over-excursion caused by ultra-low frequency content (boat hull resonance, port noise, corrupted audio files) critical for vented subwoofer enclosures and high-excursion marine subs in open-air environments.
Marine-Grade Element Ready™ Construction Two-part epoxy conformal-coated circuit boards and corrosion-resistant stainless steel hardware provide full protection against the saltwater, humidity, UV radiation, and mechanical vibration that destroys standard car audio gear in marine and motorsport environments. This isn't a rebadged car amp it's genuinely built for the conditions Australian boaters, UTV riders, and 4WD tourers encounter.
C.L.E.A.N. Gain Setting with LED Indicators Calibrated Level Eliminates Audible Noise. Onboard colour-coded LEDs (Blue: <0.5% THD | Violet: 1% THD | Red: 10%+ THD) guide precise gain matching between your head unit and amplifier maximising clean output headroom and protecting subwoofer voice coils from clipping distortion.
High-Level Input with Auto Turn-On Accepts speaker-level signals directly from factory (OEM) head units no line output converter required. Auto Turn-On powers the amp automatically at ignition. Ideal for Aussie utes, 4WDs, tinnies, and UTVs running factory head units where aftermarket RCA outputs aren't an option.
RCA Pass-Through Outputs Loop the signal from the PM1000X1bd to a separate full-range amplifier without signal degradation. Run the PM1000X1bd exclusively on subwoofers, and daisy-chain a PM400X4 or PM300X2 for full-range speakers from the same source.
Optional PLC2 Remote Level Control PLC2-ready for driver-seat subwoofer level adjustment (sold separately), complete with an input clip indicator for real-time gain monitoring while underway.
MEHSA³ Cast Aluminium Heatsink Maximum Efficiency Heat Sink Application (MEHSA³) construction delivers up to five times better heat transfer than conventional mounting techniques critical for a 1,000W mono amp installed in a sealed marine cavity or under a ute seat where airflow is limited.
Technical Specs
Specification
Detail
SKU
PM1000X1bd
Number of Channels
1 (Mono)
Total Power
1,000W
Rated Power – 4 ohm (CTA-2006, <1.0% THD+N)
300W x 1
Rated Power – 2 ohm (CTA-2006, <1.0% THD+N)
500W x 1
Rated Power – 1 ohm (CTA-2006, <1.0% THD+N)
1,000W x 1
Circuit Topology
Class-BD
Class-BD Efficiency
75–80%
Minimum Impedance
1 ohm stable
Bridgeable
No (monoblock)
Frequency Response
20 Hz – 250 Hz (±1 dB)
THD + Noise
Less than 1%
Input Sensitivity
Low-Level: 150mV – 4V / High-Level: 4V – 12V
Signal Input
1 x RCA pair + High-Level
Signal Output
1 x RCA Pass-Through
Punch EQ Bass
0 dB to +18 dB @ 45 Hz
Low-Pass Crossover
50 Hz – 250 Hz @ 12 dB/octave Butterworth
Infrasonic Filter
28 Hz @ 12 dB/octave Butterworth
All-Pass
No
Auto-Sense Turn-On
Yes
High-Level Input
Yes (with Auto Turn-On)
Remote Level Control
Optional PLC2 (sold separately)
Circuit Board Protection
Marine-grade two-part epoxy conformal coating
Heatsink
Cast aluminium (MEHSA³ process)
Hardware
Marine-grade stainless steel
Element Ready™
Dust, UV, Temperature, Water, Corrosion, Vibration
CTA-2006 Compliant
Yes
CE Compliant
Yes
Recommended Fuse
140A x 1 (not included)
Max Current Draw (13.8V Sinewave)
130A
Visual Indicators
Power/Protect/Thermal LED; C.L.E.A.N. In/Out LED
LED Colour Legend
Blue: <0.5% THD / Violet: 1% THD / Red: 10%+ THD
Dimensions (H x W x D)
60.5 x 197.1 x 337.3 mm (2.38 x 7.76 x 13.28 in)
Shipping Weight
Confirm with supplier
Warranty
2 Years
Compatible With
Subwoofer Configurations (Optimised For)
Two 4-ohm DVC subwoofers wired parallel per voice coil (final load: 1 ohm) recommended
Four 2-ohm DVC subwoofers wired series-parallel (final load: 1 ohm)
Single 4-ohm SVC subwoofer (300W @ 4 ohm)
Single 2-ohm SVC subwoofer (500W @ 2 ohm)
Rockford Fosgate M2D4-12 Marine Subwoofer
Rockford Fosgate Punch P3D4-12 / P3D4-15 Subwoofers
Rockford Fosgate Punch P2D4-10 / P2D4-12 Subwoofers
Marine & Boat Audio
Ski boats, bowriders, pontoons, and cabin cruisers dedicated bass channel
Paired with Rockford Fosgate PM400X4 (via RCA pass-through) for full front-stage + sub system
Rockford Fosgate PMX-5CAN Marine Head Unit
Motorsport & Powersports
Side-by-side UTVs (Can-Am Maverick X3, Polaris RZR XP, Yamaha YXZ, Honda Talon)
Rockford Fosgate UTV subwoofer enclosures
Powersports applications requiring 1-ohm stable, compact mono power
4WD, Ute & Touring Vehicles
Toyota LandCruiser (100, 200, 300 Series), HiLux, Prado
Ford Ranger, Everest, Bronco
Isuzu D-MAX / MU-X
Nissan Patrol (Y60, Y61, Y62), Navara
Mitsubishi Triton, Pajero Sport
Any vehicle running an OEM (factory) head unit via high-level input
Compatible Accessories
Rockford Fosgate PLC2 Remote Punch Level Controller (sold separately recommended)
RFI-1 Amplifier Wiring Installation Kit (recommended for extended warranty)
4 AWG or 0 AWG OFC wiring kit match wire gauge to fuse rating (140A) for safe power delivery
Frequently Asked Questions
What subwoofer wiring configuration works best with the PM1000X1bd?
For maximum output at 1 ohm, wire two 4-ohm DVC subwoofers with each voice coil pair connected in parallel, giving a final 1-ohm load. Alternatively, four 2-ohm DVC subwoofers wired in series-parallel also achieve a 1-ohm final load. Always verify total impedance before powering on.
Can the PM1000X1bd be used for full-range speakers?
No. The PM1000X1bd has a dedicated low-frequency response of 20 Hz to 250 Hz with no all-pass mode. It is designed exclusively for subwoofers and mid-bass drivers. For full-range speaker amplification, pair it with a Rockford Fosgate PM400X4 or PM300X2 using the RCA pass-through outputs.
What is Class-BD and why does it matter for marine installs?
Class-BD amplifiers deliver 75–80% power efficiency compared to 20–60% for traditional Class A/B designs. In a sealed marine cavity or under a ute seat, this means less heat generated per watt of bass output keeping the amp cooler, reducing strain on your electrical system, and extending the life of the install.
What does the infrasonic filter do and do I need it?
The 28 Hz infrasonic filter rolls off damaging subsonic frequencies that human hearing can't detect but that over-excite subwoofer cones particularly in vented enclosures or open-air marine installs. It is active by default and provides essential cone protection, especially important for high-excursion marine subs used in boats where hull resonance can generate problematic ultra-low frequency content.
What warranty applies to the PM1000X1bd in Australia?
The PM1000X1bd carries a 2-year manufacturer warranty. Australian warranty terms are administered through the authorised local distributor confirm coverage at point of purchase, as Rockford Fosgate's published US warranty applies only to products purchased via US-authorised dealers.
Legendary Products & Support From Authorized Dealers
When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & TrainingOnly authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty ProtectionWe offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support.
▸ Reliable Customer SupportIf you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your InvestmentBuying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that?
Choose wisely. Buy from Frankies BrandBeast today!
Stinger 4GA 4000 Series Power Wiring Kit: Perfect Choice for More Sophisticated Car Audio Systems
Stinger 4000 Series Power Wiring Kit
All of the Stinger power and speaker wire is made of true-spec tinned oxygen-free copper to ensure maximum power transfer. Tremendous power capabilities, superior noise rejection, and exceptional signal integrity are all reasons why the Stinger 4000 series delivers unmatched performance and reliability with killer styling that looks great in any install. Stinger 4000 series wiring kits are no exception, setting the standard for top-notch connectivity. Our power signal kits combine our exceptional 4000 series interconnect with the power essentials for a quality installation. Designed specifically for car audio systems up to 3400 watts or 250 amps made from 100% oxygen-free copper for a pure uninterrupted transfer of power TRU-SPEC cables/wires meet or exceed the industry standard of copper required for the gauge size tinned conductors for corrosion resistance ANL-style fuse holder (SPD5801) for maximum power delivery and safety matte finish hyper-twist wire construction provides excellent flexibility pre-terminated power connections provide reliable performance kit.
Stinger SK4241 Features:
Designed Specifically for Car Audio Systems up To 1500 Watts or 150 Amps
Made from 100% Oxygen-Free Copper for A Pure Uninterrupted Transfer of Power
TRU-SPEC Cables/Wires
Tinned Conductors for Corrosion Resistance
Mini-ANL (MIDI) Style Fuse Holder (SPD5801) for Maximum Power Delivery & Safety
Matte Finish Hyper-Twist Wire Construction Provides Excellent Flexibility
Pre-Terminated Power Connections Provide Reliable Performance
What's in The Box:
18FT./5.5M Matte Red Hyper-Twist 4GA Power Wire
3FT./0.9M Matte Black Hyper-Twist 4GA Ground Wire
17FT./5.2M Matte Blue 18GA Remote Turn-On Wire
SPD5801 MINI-ANL (MIDI) Fuse Holder
150 Amp Shoc-Krome MIDI Fuse
4GA Crimp Ring Terminals Pre-Installed
16GA Blue Butt Connector
4GA Snap In Protective Firewall Grommet
Self-Drilling Mounting Screws
(10) 7”/17.8CM Wire Ties
Legendary Products & Support From Authorized Dealers
When you choose Stinger, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & Training
Only authorized Stinger dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty Protection:
We offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don't be misled by unauthorized sellers who can't provide genuine warranty support.
▸ Reliable Customer Support:
If you ever run into an issue, you're backed by Stinger's official manufacturer's warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your Investment:
Buying from an authorized dealer ensures you're getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few dollars worth losing all that?
Choose wisely. Buy from an authorized Stinger dealer today!
Serious Bass. Compact Package. Built to Survive the Elements.
The Rockford Fosgate PM500X1bd is a 500 Watt Class-BD mono amplifier engineered for marine, motorsport, and powersports environments where dedicated subwoofer power and genuine weather protection are the brief. Delivering 150W x 1 at 4 ohms, 300W x 1 at 2 ohms, and a full 500W x 1 at 1 ohm, it sits in the sweet spot of the Punch Marine mono range more than enough to drive a serious subwoofer setup without the electrical demands or physical footprint of a kilowatt-class amp.
Like its bigger sibling the PM1000X1bd, the PM500X1bd runs Rockford Fosgate's Class-BD circuit topology, achieving 75–80% power efficiency compared to the 20–60% typical of Class A/B designs. That means cleaner bass, less heat generated per watt, and reduced strain on your boat or vehicle's electrical system. Its 1-ohm stability lets you run two 4-ohm DVC subwoofers or four 2-ohm DVC subs without any complex impedance gymnastics, and its frequency response is locked between 20 Hz and 250 Hz every watt is dedicated to the low end where it matters most. Rockford Fosgate's Element Ready™ construction marine-grade two-part epoxy conformal-coated PCB and corrosion-resistant stainless steel hardware keeps it performing reliably through saltwater, humidity, outback dust, and relentless Australian UV.
Key Specifications
500W total power output (CTA-2006 compliant)
150W x 1 at 4 ohms | 300W x 1 at 2 ohms | 500W x 1 at 1 ohm
Class-BD circuit topology 75–80% efficiency rating
1-ohm stable monoblock; dedicated low-frequency output only
Frequency response: 20 Hz – 250 Hz
THD+N: Less than 1%
Input sensitivity: 150mV – 12V (low- and high-level)
Low-pass crossover: 50 Hz – 250 Hz @ 12 dB/octave Butterworth
Infrasonic filter: 28 Hz @ 12 dB/octave Butterworth
All-Pass: No (low-frequency only)
On-board Punch EQ: Bass +0 to +18 dB @ 45 Hz
RCA pass-through outputs
Optional remote Punch Level Control (PLC2) compatible
Marine-grade two-part epoxy conformal coating on PCB
Marine-grade stainless steel hardware
Element Ready™: Dust, UV, Temperature, Water, Corrosion & Vibration rated
Max current draw: 70A at 13.8V sinewave
2-year manufacturer warranty
Features & Benefits
Class-BD Technology More Bass, Less Current Draw The PM500X1bd's Class-BD circuit delivers 75–80% power efficiency, compared to 20–60% for Class A/B. At 500W, this translates directly into less heat generated inside sealed installations, reduced load on your battery and alternator, and a longer, more reliable lifespan for the amp and your electrical system particularly valuable for boats and UTVs with limited charging headroom.
1-Ohm Stable Flexible Multi-Sub Wiring Run two 4-ohm DVC subwoofers with voice coils wired in parallel (final load: 1 ohm), or four 2-ohm DVC subs in series-parallel (final load: 1 ohm). The PM500X1bd handles either configuration with ease no voltage drop, no thermal runaway, no compromise on output.
Dedicated Low-Frequency Response Focused Power With a frequency response of 20 Hz to 250 Hz and no all-pass mode, the PM500X1bd routes every watt directly to the bass band. For subwoofer-only or mid-bass applications this is a significant advantage no wasted amplifier headroom on frequencies your sub can't reproduce.
Infrasonic Filter at 28 Hz Built-In Sub Protection The onboard 28 Hz infrasonic filter rolls off subsonic frequencies at 12 dB/octave, protecting subwoofer cones from over-excursion caused by ultra-low frequency content hull resonance, port noise, or corrupted audio files. Essential for vented enclosures and high-excursion subs used in open-air marine environments on Aussie waterways.
Marine-Grade Element Ready™ Construction Two-part epoxy conformal-coated circuit boards and corrosion-resistant stainless steel hardware provide full protection against saltwater spray, humidity, UV radiation, and mechanical vibration. Designed and built for real marine and motorsport conditions not a cosmetic upgrade over a standard car amp.
C.L.E.A.N. Gain Setting with LED Indicators Calibrated Level Eliminates Audible Noise. Colour-coded LEDs (Blue: <0.5% THD | Violet: 1% THD | Red: 10%+ THD) guide precise gain matching between your source unit and the amplifier eliminating clipping distortion that damages subwoofer voice coils and delivers clean, dynamic bass at any volume level.
High-Level Input with Auto Turn-On Accepts speaker-level signals up to 12V directly from factory (OEM) head units no line output converter required. Auto Turn-On senses the audio signal and powers the amp at ignition. Ideal for Aussie utes, 4WDs, tinnies, and UTVs running factory radios.
RCA Pass-Through Outputs Loop the pre-amp signal downstream to a separate full-range amplifier with no signal degradation. Pair the PM500X1bd on a subwoofer channel and feed a PM400X4 or PM300X2 for full-range speakers from the same head unit output one signal source, two amplifiers, no converter needed.
Optional PLC2 Remote Level Control The PM500X1bd is PLC2-ready. Add the optional Rockford Fosgate PLC2 remote controller (sold separately) for driver-seat subwoofer level adjustment, with an onboard input clip indicator for real-time gain monitoring.
MEHSA³ Cast Aluminium Heatsink Maximum Efficiency Heat Sink Application (MEHSA³) construction delivers up to five times better heat transfer than conventional mounting methods keeping the PM500X1bd running cool in sealed marine cavities, under-seat bays, and enclosed UTV storage compartments.
Muted Turn-On Silent power-on at ignition with no pop or thump through the subwoofer protecting the voice coil and surround every time the system cycles.
Technical Specs
Specification
Detail
SKU
PM500X1bd
Number of Channels
1 (Mono)
Total Power
500W
Rated Power – 4 ohm (CTA-2006, <1.0% THD+N)
150W x 1
Rated Power – 2 ohm (CTA-2006, <1.0% THD+N)
300W x 1
Rated Power – 1 ohm (CTA-2006, <1.0% THD+N)
500W x 1
Circuit Topology
Class-BD
Class-BD Efficiency
75–80%
Minimum Impedance
1 ohm stable
Bridgeable
No (monoblock)
Frequency Response
20 Hz – 250 Hz
THD + Noise
Less than 1%
Input Sensitivity
Low-Level: 150mV – 4V / High-Level: 4V – 12V
Signal Input
1 x RCA pair + High-Level
Signal Output
1 x RCA Pass-Through
Punch EQ Bass
0 dB to +18 dB @ 45 Hz
Low-Pass Crossover
50 Hz – 250 Hz @ 12 dB/octave Butterworth
Infrasonic Filter
28 Hz @ 12 dB/octave Butterworth
All-Pass
No
Auto-Sense Turn-On
Yes
High-Level Input
Yes (with Auto Turn-On)
Remote Level Control
Optional PLC2 (sold separately)
Circuit Board Protection
Marine-grade two-part epoxy conformal coating
Heatsink
Cast aluminium (MEHSA³ process)
Hardware
Marine-grade stainless steel
Element Ready™
Dust, UV, Temperature, Water, Corrosion, Vibration
CTA-2006 Compliant
Yes
CE Compliant
Yes
Max Current Draw (13.8V Sinewave)
70A
Visual Indicators
Power/Protect/Thermal LED; C.L.E.A.N. In/Out LED
LED Colour Legend
Blue: <0.5% THD / Violet: 1% THD / Red: 10%+ THD
Dimensions (H x W x D)
60.5 x 197.1 x 337.3 mm (2.38 x 7.76 x 13.28 in)
Shipping Weight
Confirm with supplier
Warranty
2 Years
Compatible With
Subwoofer Configurations (Optimised For)
Two 4-ohm DVC subwoofers, voice coils wired parallel (final load: 1 ohm) recommended
Four 2-ohm DVC subwoofers wired series-parallel (final load: 1 ohm)
Single 4-ohm SVC subwoofer (150W @ 4 ohm)
Single 2-ohm SVC subwoofer (300W @ 2 ohm)
Rockford Fosgate M2D4-12 Marine Subwoofer
Rockford Fosgate Punch P2D4-10 / P2D4-12 Subwoofers
Rockford Fosgate Punch P1D4-10 / P1D4-12 Subwoofers
Marine & Boat Audio
Tinnies, ski boats, bowriders, pontoons, and cabin cruisers dedicated bass channel
Paired with Rockford Fosgate PM400X4 or PM300X2 (via RCA pass-through) for full front-stage + sub system
Rockford Fosgate PMX-5CAN Marine Head Unit
Motorsport & Powersports
Side-by-side UTVs (Can-Am Maverick, Polaris RZR, Yamaha YXZ, Honda Talon)
Rockford Fosgate UTV subwoofer enclosures
Powersports applications requiring compact 1-ohm stable mono power
4WD, Ute & Touring Vehicles
Toyota LandCruiser (100, 200, 300 Series), HiLux, Prado
Ford Ranger, Everest, Bronco
Isuzu D-MAX / MU-X
Nissan Patrol (Y60, Y61, Y62), Navara
Mitsubishi Triton, Pajero Sport
Any vehicle with an OEM (factory) head unit via high-level input
Compatible Accessories
Rockford Fosgate PLC2 Remote Punch Level Controller (sold separately recommended)
RFI-1 Amplifier Wiring Installation Kit (recommended for extended warranty)
4 AWG OFC wiring kit matched to 70A current draw for safe, optimised power delivery
Frequently Asked Questions
What subwoofer wiring configuration works best with the PM500X1bd?
For maximum 500W output at 1 ohm, wire two 4-ohm DVC subwoofers with each voice coil pair connected in parallel for a final 1-ohm load. Alternatively, four 2-ohm DVC subwoofers in series-parallel also achieve a 1-ohm final load. Always verify total impedance before powering on.
Can the PM500X1bd power full-range speakers?
No. The PM500X1bd has a dedicated low-frequency response of 20 Hz to 250 Hz with no all-pass mode it is designed exclusively for subwoofers and mid-bass drivers. For full-range speakers, pair it with a Rockford Fosgate PM400X4 or PM300X2 using the onboard RCA pass-through outputs.
How does the PM500X1bd differ from the PM1000X1bd?
Both use Class-BD topology and identical marine-grade construction, but the PM500X1bd delivers 500W at 1 ohm versus 1,000W for the PM1000X1bd. The PM500X1bd draws 70A maximum versus 130A, making it a better fit for systems with tighter electrical budgets particularly boats and UTVs with standard alternators. Choose the PM1000X1bd for maximum output in larger, purpose-built subwoofer enclosures.
Does the infrasonic filter need to be enabled manually?
The infrasonic filter operates at 28 Hz and is a fixed circuit within the amplifier it provides constant protection against damaging subsonic frequencies without requiring any manual adjustment. It is particularly important for vented subwoofer enclosures that are more susceptible to over-excursion below the port tuning frequency.
What warranty applies to the PM500X1bd in Australia?
The PM500X1bd carries a 2-year manufacturer warranty. Australian warranty terms are administered through the authorised local distributor confirm coverage details at point of purchase, as Rockford Fosgate's published US warranty applies only to products purchased via US-authorised dealers.
Legendary Products & Support From Authorized Dealers
When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & TrainingOnly authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty ProtectionWe offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support.
▸ Reliable Customer SupportIf you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your InvestmentBuying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that?
Choose wisely. Buy from Frankies BrandBeast today!
Proven Punch Technology in a Compact, Marine-Tough Package.
Product Overview
The Rockford Fosgate PM300X2 is a 300 Watt, 2-channel Class A/B amplifier designed for marine, motorsport, and powersports environments and versatile enough to handle virtually any moderately sized audio system. Delivering 100W x 2 at 4 ohms, 150W x 2 at 2 ohms, or 300W x 1 bridged at 4 ohms, the PM300X2 is equally at home powering a pair of coaxial speakers on a tinnie, component speakers in a UTV, or a single subwoofer in a ute all from the same compact chassis (60.5 x 250.8 x 197.1 mm).
What makes the PM300X2 stand out as an entry point into the Punch Marine range is its flexibility. Run it as a straight stereo amplifier for a pair of speakers, bridge it to mono for a clean, compact subwoofer channel, or operate it in stereo/mono simultaneously using passive crossovers for a 2.1 setup from a single unit. Rockford Fosgate's Element Ready™ construction conformal-coated PCB, UV-resistant components, and marine-grade stainless steel hardware ensures every install holds up against saltwater, humidity, outback dust, and relentless Australian UV.
Key Specifications
300W total power output (CTA-2006 compliant)
100W x 2 channels at 4 ohms | 150W x 2 channels at 2 ohms
300W x 1 channel at 4 ohms (bridged mono)
Class A/B circuit topology (Trans•ana)
2-channel configuration; bridgeable to mono
Frequency response: 20 Hz – 20 kHz
THD+N: Less than 1%
Input sensitivity: 150mV – 12V (low- and high-level)
Crossover: 12 dB/octave Butterworth, 50 Hz – 250 Hz (HP/LP/AP)
On-board Punch EQ2: Bass +0 to +18 dB @ 45 Hz | Treble +0 to +12 dB @ 12 kHz
RCA pass-through outputs (active signal loop for daisy-chaining amps)
Optional remote Punch Level Control (PLC2) compatible
Marine-grade two-part epoxy conformal coating on PCB
Marine-grade stainless steel hardware
Element Ready™: Dust, UV, Temperature, Water, Corrosion & Vibration rated
Recommended fuse: 50A x 1 (not included)
Max current draw: 45A at 13.8V sinewave
2-year manufacturer warranty
Features & Benefits
The Most Versatile Amp in the Punch Marine Range The PM300X2 is purpose-built for flexibility. Speaker pair up front? Done. Bridge it to mono for a 4-ohm sub? Easy. Run it in stereo and mono simultaneously with passive crossovers for a 2.1 system? The PM300X2 handles it one amplifier, multiple configurations, zero compromises.
Marine-Grade Element Ready™ Construction Two-part epoxy conformal-coated circuit boards and corrosion-resistant stainless steel hardware protect the PM300X2 against the salt, moisture, UV, and vibration that kills inferior gear. It's a genuine marine-grade amplifier not a standard car amp with a cosmetic finish applied.
Class A/B Trans•ana Topology Rockford Fosgate's Trans•ana design simplifies the signal path, allowing the signal to travel at lower voltage through the amp for reduced distortion, improved reliability, and a flat, fatigue-free frequency response from 20 Hz to 20 kHz. Real-world performance consistently exceeds the published <1% THD spec.
C.L.E.A.N. Gain Setting with LED Indicators Calibrated Level Eliminates Audible Noise. The onboard C.L.E.A.N. circuit uses colour-coded LEDs (Blue: <0.5% THD | Violet: 1% THD | Red: 10%+ THD) to guide precise gain matching between your source and amplifier no clipping, no distortion, no damaged speakers from an over-driven install.
High-Level Input with Auto Turn-On Accepts speaker-level signals up to 12V directly from factory (OEM) head units no line output converter required. The Auto Turn-On circuit senses the audio signal and powers the amp automatically. Ideal for Aussie utes, 4WDs, boats, and UTVs running factory head units where aftermarket RCA outputs aren't available.
On-Board Punch EQ2 with Bass & Treble Boost Dial in up to +18 dB of bass boost at 45 Hz and +12 dB of treble presence at 12 kHz directly from the stealth top-mounted control panel. Whether you're filling a boat with open-air sound or tucking a sub under a ute seat, the EQ2 lets you tune for the environment without needing a separate processor.
RCA Pass-Through Outputs Loop the signal downstream to a second amplifier without signal degradation. Pair the PM300X2 on a subwoofer channel and feed a dedicated speaker amp from the same source a clean, cost-effective system expansion path.
Optional PLC2 Remote Level Control The PM300X2 is PLC2-ready. Add the optional Rockford Fosgate PLC2 remote controller (sold separately) for driver-seat subwoofer level adjustment, complete with an onboard input clip indicator to keep tabs on your gain headroom.
MEHSA³ Cast Aluminium Heatsink Maximum Efficiency Heat Sink Application (MEHSA³) construction achieves up to five times better heat transfer than conventional mounting, keeping the PM300X2 cool even when installed in sealed, sun-baked enclosures. Dynamic Thermal Management further distributes heat evenly across the entire heatsink surface.
Muted Turn-On Silently powers up without a pop or thump through your speakers protecting tweeters, mid-range drivers, and subwoofers at every ignition cycle.
Technical Specs
Specification
Detail
SKU
PM300X2
Number of Channels
2
Total Power
300W
Rated Power – 4 ohm (CTA-2006, <1.0% THD+N)
100W x 2
Rated Power – 2 ohm (CTA-2006, <1.0% THD+N)
150W x 2
Rated Power – 4 ohm Bridged (CTA-2006)
300W x 1
Circuit Topology
Class A/B (Trans•ana)
Bridgeable
Yes (mono, 4 ohm minimum)
Frequency Response
20 Hz – 20 kHz
THD + Noise
Less than 1%
Input Sensitivity
Low-Level: 150mV – 4V / High-Level: 4V – 12V
Signal Input
2 x RCA + High-Level
Signal Output
2 x RCA Pass-Through
Punch EQ2 Bass
0 dB to +18 dB @ 45 Hz
Punch EQ2 Treble
0 dB to +12 dB @ 12 kHz
High-Pass/Low-Pass Crossover
50 Hz – 250 Hz @ 12 dB/octave Butterworth
All-Pass
Yes
Auto-Sense Turn-On
Yes
High-Level Input
Yes (with Auto Turn-On)
Remote Level Control
Optional PLC2 (sold separately)
Circuit Board Protection
Marine-grade two-part epoxy conformal coating
Heatsink
Cast aluminium (MEHSA³ + Dynamic Thermal Management)
Hardware
Marine-grade stainless steel
Element Ready™
Dust, UV, Temperature, Water, Corrosion, Vibration
CTA-2006 Compliant
Yes
CE Compliant
Yes
Recommended Fuse
50A x 1 (not included)
Max Current Draw (13.8V Sinewave)
45A
Visual Indicators
Power/Protect LED; C.L.E.A.N. In/Out LED
LED Colour Legend
Blue: <0.5% THD / Violet: 1% THD / Red: 10%+ THD
Dimensions (H x W x D)
60.5 x 197.1 x 250.8 mm (2.38 x 7.76 x 9.88 in)
Shipping Weight
Confirm with supplier
Warranty
2 Years
Compatible With
Speakers (Stereo Mode)
Rockford Fosgate Punch PM series marine coaxial speakers
Rockford Fosgate PM282H / PM282H-B 8" Element Ready marine speakers
Rockford Fosgate M2-65B / M2-8 marine coaxial speakers
Any pair of 2- or 4-ohm full-range coaxial or component speakers
Subwoofer (Bridged Mono Mode)
Single 4-ohm SVC subwoofer (bridged, 300W)
Rockford Fosgate Punch P1D4-10, P2D4-10 marine or powersports subwoofers
Rockford Fosgate M2D4-12 Marine Subwoofer (confirm impedance before bridging)
Combined Stereo + Mono (with Passive Crossovers)
2.1 system: front speakers (stereo) + single sub (mono) via passive crossovers (not supplied)
Marine & Boat Audio
Tinnies, ski boats, pontoons, and centre consoles
Paired with Rockford Fosgate PM400X4 via RCA pass-through for full front/rear + sub system
Rockford Fosgate PMX-5CAN Marine Head Unit
Motorsport & Powersports
Side-by-side UTVs (Can-Am Maverick, Polaris RZR, Yamaha YXZ)
Motorcycles and touring bikes with aftermarket audio
Powersports applications requiring compact, vibration-resistant amplification
4WD, Ute & Touring Vehicles
Toyota LandCruiser (100, 200, 300 Series), HiLux, Prado
Ford Ranger, Everest, Bronco
Isuzu D-MAX / MU-X
Nissan Patrol, Navara
Mitsubishi Triton, Pajero Sport
Any vehicle running an OEM (factory) head unit via high-level input
Compatible Accessories
Rockford Fosgate PLC2 Remote Punch Level Controller (sold separately)
RFI-1 Amplifier Wiring Installation Kit (recommended for extended warranty)
Frequently Asked Questions
Can the PM300X2 run speakers and a subwoofer at the same time?
Yes. Using passive crossovers (not supplied), the PM300X2 can operate in stereo mode for a pair of speakers and mono mode for a subwoofer simultaneously delivering a complete 2.1 system from a single compact amplifier.
Does the PM300X2 work with a factory (OEM) head unit?
Yes. The high-level input accepts speaker-level signals directly from a factory head unit (up to 12V), with Auto Turn-On that senses the audio signal at ignition. No line output converter is required, making installation straightforward in any stock AU vehicle.
What is the difference between the PM300X2 and the PM500X2?
The PM300X2 delivers 300W total (100W x 2 @ 4 ohms) and is best suited to full-range speakers or a single modest subwoofer. The PM500X2 delivers 500W total (150W x 2 @ 4 ohms / 500W bridged) with a larger output stage optimised for dedicated subwoofer applications. Choose the PM300X2 for flexibility; choose the PM500X2 for maximum bass output.
Is this amplifier genuinely marine-grade or just water-resistant?
The PM300X2 uses Rockford Fosgate's Element Ready™ construction marine-grade two-part epoxy conformal-coated circuit boards and corrosion-resistant stainless steel hardware rated for dust, UV, temperature, water, corrosion, and vibration exposure. It is built to withstand real marine environments, not just light splash protection.
What warranty applies to the PM300X2 in Australia?
The PM300X2 carries a 2-year manufacturer warranty. Australian warranty terms are administered through the authorised local distributor confirm coverage details at point of purchase, as Rockford Fosgate's printed US warranty applies only to products purchased via US-authorised dealers.
Legendary Products & Support From Authorized Dealers
When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & TrainingOnly authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty ProtectionWe offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support.
▸ Reliable Customer SupportIf you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your InvestmentBuying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that?
Choose wisely. Buy from Frankies BrandBeast today!
500 Watts of Punch. All the Boot Space You Need.
Product Overview
The Rockford Fosgate PM500X2 is a 500 Watt, 2-channel Class A/B amplifier purpose-built for marine, motorsport, and powersports environments. Delivering 150W x 2 at 4 ohms, 250W x 2 at 2 ohms, or a massive 500W x 1 bridged at 4 ohms, this amp is specifically engineered for high-demand subwoofer applications optimised for driving a pair of 8-ohm SVC subwoofers or four 2-ohm DVC subwoofers.
Unlike bulkier alternatives, the PM500X2 punches well above its compact footprint (60.5 x 197.1 x 337.3 mm), making it a smart choice for tinnies, UTVs, utes, and touring 4WDs where boot space and under-seat real estate is at a premium. Rockford Fosgate's Element Ready™ construction marine-grade two-part epoxy conformal-coated PCB, UV-resistant materials, and corrosion-resistant stainless steel hardware means this amp is built to handle saltwater spray, humidity, outback dust, and the unforgiving Australian sun without skipping a beat.
Key Specifications
500W total power output (CTA-2006 compliant)
150W x 2 channels at 4 ohms | 250W x 2 channels at 2 ohms
500W x 1 channel at 4 ohms (bridged mono)
Class A/B circuit topology (Trans•ana)
2-channel configuration; bridgeable to mono
Frequency response: 20 Hz – 20 kHz
THD+N: Less than 1%
Input sensitivity: 150mV – 12V (low- and high-level)
Crossover: 12 dB/octave Butterworth, 50 Hz – 250 Hz (HP/LP/AP)
On-board Punch EQ2: Bass +0 to +18 dB @ 45 Hz | Treble +0 to +12 dB @ 12 kHz
RCA pass-through outputs (active signal loop for daisy-chaining amps)
Optional remote Punch Level Control (PLC2) compatible
Marine-grade two-part epoxy conformal coating on PCB
Marine-grade stainless steel hardware
Element Ready™: Dust, UV, Temperature, Water, Corrosion & Vibration rated
Recommended fuse: 80A x 1 (not included)
Max current draw: 80A at 13.8V sinewave
2-year manufacturer warranty
Features & Benefits
Designed for Subwoofer-First Builds The PM500X2's massive output stage is specifically optimised for subwoofer loads pair it with two 8-ohm SVC subs or wire four 2-ohm DVC subs in series-parallel for a punishing, clean bass foundation. Whether it's thumping across open water or rattling corrugated outback tracks, this amp was made for the low end.
Compact Footprint More Room for Subs At just 337.3 mm long, the PM500X2 fits neatly under seats, behind panels, or in tight marine cavities where a larger amp simply won't go. Less amp space = more room for the enclosure that actually moves air.
Marine-Grade Element Ready™ Construction Conformal-coated circuit boards using marine-grade two-part epoxy, combined with corrosion-resistant stainless steel hardware, provide genuine protection against saltwater, humidity, UV radiation, and vibration. This isn't a consumer amp with a coat of paint it's built to last in real-world marine and motorsport conditions.
Class A/B Trans•ana Topology Rockford Fosgate's Trans•ana circuit simplifies the signal path, keeping the signal travelling at lower voltage for improved reliability and a flat, distortion-free response. Independent testing consistently measures distortion below 0.02% far better than the <1% spec rating.
C.L.E.A.N. Gain Setting Technology Calibrated Level Eliminates Audible Noise. LED clip indicators on the input and output side guide you to a perfect gain match between head unit and amplifier protecting your subwoofers from clipping distortion, eliminating setup guesswork, and maximising dynamic headroom.
High-Level Input with Auto Turn-On Connects directly to factory head units via speaker-level inputs no line output converter required. Auto Turn-On senses the audio signal and powers the amp automatically at ignition. Ideal for Aussie utes and 4WDs running OEM radios where an aftermarket RCA tap isn't available.
RCA Pass-Through Outputs The PM500X2 includes RCA preamp pass-through outputs, allowing you to daisy-chain a second amplifier run the PM500X2 on subwoofers and loop the signal to a separate 4-channel amp for your full-range speakers. One signal source, two amplifiers, no signal converter needed.
Optional Remote Punch Level Control (PLC2) The PM500X2 is PLC2-ready. Add the optional Rockford Fosgate PLC2 remote level controller (sold separately) to adjust subwoofer output from the driver's seat with the added benefit of an onboard input clip indicator so you always know when you're pushing the amp too hard.
MEHSA³ Cast Aluminium Heatsink Maximum Efficiency Heat Sink Application (MEHSA³) construction delivers up to five times better heat transfer than conventional mounting methods. Keeps the PM500X2 running cool in enclosed spaces, fibreglass hulls, and sealed under-seat compartments during long summer days on the water.
Muted Turn-On Eliminates the power-on thump through your subwoofers when the ignition is cycled a small detail that protects your investment over the life of the install.
Technical Specs
Specification
Detail
SKU
PM500X2
Number of Channels
2
Total Power
500W
Rated Power – 4 ohm (CTA-2006, <1.0% THD+N)
150W x 2
Rated Power – 2 ohm (CTA-2006, <1.0% THD+N)
250W x 2
Rated Power – 4 ohm Bridged (CTA-2006)
500W x 1
Dynamic Power – 4 ohm
223W x 2
Circuit Topology
Class A/B (Trans•ana)
Bridgeable
Yes (mono, 4 ohm minimum)
Frequency Response
20 Hz – 20 kHz
THD + Noise
Less than 1%
Input Sensitivity
Low-Level: 150mV – 4V / High-Level: 4V – 12V
Signal Input
2 x RCA + High-Level
Signal Output
2 x RCA Pass-Through
Punch EQ2 Bass
0 dB to +18 dB @ 45 Hz
Punch EQ2 Treble
0 dB to +12 dB @ 12 kHz
High-Pass/Low-Pass Crossover
50 Hz – 250 Hz @ 12 dB/octave Butterworth
All-Pass
Yes
Auto-Sense Turn-On
Yes
High-Level Input
Yes (with Auto Turn-On)
Remote Level Control
Optional PLC2 (sold separately)
Circuit Board Protection
Marine-grade two-part epoxy conformal coating
Heatsink
Cast aluminium (MEHSA³ process)
Hardware
Marine-grade stainless steel
Element Ready™
Dust, UV, Temperature, Water, Corrosion, Vibration
CTA-2006 Compliant
Yes
CE Compliant
Yes
Recommended Fuse
80A x 1 (not included)
Max Current Draw (13.8V Sinewave)
80A
Visual Indicators
Power/Protect LED; C.L.E.A.N. In/Out LED
Dimensions (H x W x D)
60.5 x 197.1 x 337.3 mm (2.38 x 7.76 x 13.28 in)
Shipping Weight
5.4 kg (11.9 lbs)
Warranty
2 Years
Compatible With
Subwoofer Configurations (Optimised For)
Pair of 8-ohm SVC subwoofers (one per channel, stereo)
Four 2-ohm DVC subwoofers (wired series-parallel, bridged mono)
Rockford Fosgate PM series marine subwoofers
Rockford Fosgate Punch P2 / P3 series subwoofers (P2D4-10, P3D4-12)
Rockford Fosgate M2D4-12 Marine Subwoofer
Marine & Boat Audio
Tinnie, ski boat, pontoon, bowrider, and cabin cruiser installs
Paired with Rockford Fosgate PM400X4 (4-channel full-range amp) via RCA pass-through
Rockford Fosgate PMX-5CAN Marine Head Unit
Motorsport & Powersports
Side-by-side UTVs (Can-Am Maverick, Polaris RZR, Yamaha YXZ, Honda Talon)
Rockford Fosgate UTV subwoofer enclosures
4WD, Ute & Touring Vehicles
Toyota LandCruiser (100, 200, 300 Series), HiLux, Prado
Ford Ranger, Everest, Bronco
Isuzu D-MAX / MU-X
Nissan Patrol, Navara
Mitsubishi Triton, Pajero Sport
Any vehicle running an OEM (factory) head unit via high-level input
Compatible Accessories
Rockford Fosgate PLC2 Remote Punch Level Controller (sold separately)
RFI-1 Amplifier Wiring Installation Kit (recommended for extended warranty)
Rockford Fosgate 4 AWG OFC wiring kit (for optimal power delivery)
Frequently Asked Questions
What subwoofer configuration works best with the PM500X2?
The PM500X2 is optimised for a pair of 8-ohm SVC subwoofers (one per channel) or four 2-ohm DVC subwoofers wired in series-parallel, bridged to mono. Always confirm your final load impedance is 4 ohms or higher when bridging.
Can I run speakers and a subwoofer from this amp at the same time?
The PM500X2 is a 2-channel amplifier best suited to subwoofer-only or stereo speaker applications. For a combined system, pair it with a separate 4-channel amplifier using the PM500X2's RCA pass-through outputs to loop the signal no extra signal converter required.
Does the PM500X2 connect to a factory head unit?
Yes. The high-level input accepts speaker-level signals up to 12V directly from OEM head units, with Auto Turn-On sensing to power the amp with ignition. No line output converter is needed, making it compatible with most factory-fitted radios in AU utes and 4WDs.
What is the PLC2 and do I need it?
The Rockford Fosgate PLC2 is an optional remote level controller (sold separately) that mounts within reach of the driver, allowing real-time subwoofer volume adjustment. It also includes an input clip LED useful for monitoring gain headroom on the fly. It's optional but recommended for subwoofer-focused installs.
Is the PM500X2 covered by warranty when purchased in Australia?
The PM500X2 carries a 2-year manufacturer warranty. Australian warranty terms are administered through the authorised local distributor confirm coverage details at point of purchase, as Rockford Fosgate's printed US warranty applies only to products purchased via US-authorised dealers.
Legendary Products & Support From Authorized Dealers
When you choose Frankies BrandBeast, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & TrainingOnly authorized Frankies BrandBeast dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty ProtectionWe offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don’t be misled by unauthorized sellers who can’t provide genuine warranty support.
▸ Reliable Customer SupportIf you ever run into an issue, you’re backed by Frankies BrandBeast’s official manufacturer’s warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your InvestmentBuying from an authorized dealer ensures you’re getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few bucks worth losing all that?
Choose wisely. Buy from Frankies BrandBeast today!
Introducing an Impressive New Addition to Fusion's Signature Series Marine Amplifier Range: The SG-DA61500
Fusion Signature Series amplifiers are purpose-built for the marine environment. Boasting some of the most impressive environmental protection available, they deliver a Signature performance on the water like never before. One of our most efficient, stunning and powerful marine amplifiers, the SG-DA61500 also features a True-Marine design that will resist corrosion. Its incredible 1500 Watt peak power will power up to 6 pairs of speakers at 2 Ohms (2 x 4 Ohm speakers per channel in parallel) or up to 4 pairs of speakers at 2 Ohms (2 x 4 Ohm speakers per channel in parallel) and 1 subwoofer.
RCA line-level inputs allow for easy connection to new or existing systems. The SG-DA61500 is Fusion's first 6 channel, Class-D Hi-Fi marine amplifier. The key benefit of a Class-D amplifier is that it has a low battery drain with high output, making this the perfect amplifier for the marine environment. The SG-DA61500 also has conformal coated PCBs for maximum product life and performance, plus the amplifier chassis is a heat sink, to reduce component core temperature and increase efficiency.
Undeniably a stand-out piece, the stunning stainless steel mirror control panel cover conceals and protects all cable connections and setting controls, with an attractive finish to complement any installation. This product is rated True-Marine and carries a 3-year limited consumer warranty.
Features Class-D Amplifier Technology - The highly efficient Class-D design provides 1500-Watts peak power whilst drawing less current than a standard Class-AB amplifier. This design provides increased efficiency and power output to your speakers, letting you enjoy your music for longer.
1500 Watts Peak Power – With a peak power of 1500 watts, you can easily power up to 6 pairs of speakers or up to 4 pairs of speakers with a subwoofer.
Marine-Ready Design with Conformal Coated PCBs - Extending the life of your amplifiers, the Signature Series are designed specifically for marine use with conformal coated PCBs to provide extra protection from the marine elements.
Rigid Aluminum Alloy Heat Sink - Molded to form a singular die-cast chassis, the fin layout is calculated with precision to increase the surface area of the heat sink and improve heat dissipation.
Stainless Mirror Finish - The polished stainless-steel control panel cover conceals and protects all cable connections and settings controls whilst providing an attractive finish to complement any installation.
Speaker Configuration - Whether you require 2 Ohms per channel or 4 Ohms bridged, your Signature Series amplifier has your installation options covered to achieve the optimum output levels. Connect up to 2 speakers per channel (2 x 4 Ohm speakers in parallel) with your SG-DA61500.
Zone Designation - To align with the Fusion entertainment system zone philosophy, the input and output connections are labelled as zones.
True-Marine Design - Signature Series amplifiers are perfect for the marine environment, and carry a 3-year warranty.
Specifications
Frequency Response: 10 Hz to 40 kHz (-3dB @ 4 Ohm rated power)
Peak Power Output: 1500 W
Rated Power Output (4 Ohm): 100 W rms x 8 @ 14.4 V input < 1% THD+N (EIA/CEA-490A)
Rated Power Output (2 Ohm): 140 W rms x 8 @ 14.4 V input < 1% THD+N (EIA/CEA-490A)
Rated Power Output (4 Ohm Bridged): 280 W rms x 4 @ 14.4 V input < 1% THD+N (EIA/CEA-490A)
Input Sensitivity: 0.3 V to 8 V rms, user adjustable
Input Impedance: 7k Ohm nominal
High-Pass/Low-Pass Full Range Filter: Yes, user selectable
Filter Cross-Over Frequency: 32 Hz to 320 Hz, user adjustable
Filter Cross-Over Slope: 12 db/octave
Bass-Boost: 0 to 9 dB, user adjustable (zone 3 only)
Operating Voltage: 10.8 V to 16 V dc
Remote Switch-On: Yes - 6 V threshold
Current Consumption (Standby): < 1 mA @ 14.4 V input
Current Consumption (Idle): < 2.5 A @ 14.4 V input
Current Consumption (Max): 75 A @ 14.4 V input
Fuse Rating: 3 x 40 A ATC Blade-Type (SAE J1171 Compliant)
Protection Circuits: Reverse-Voltage, Input Under/Over Voltage, Over-Temperature, Output Short-Circuit
Operating Temperature Range: 0 to 50°C (32 to 122°F)
Ingress Protection Rating: Dry area installation only
Dimensions: 420 mm (L) x 210 mm (W) x 57 mm (H) or 16-9/16" (L) x 8-1/4" (W) x 2-1/4" (H)
Weight: 5.15 kg or 11.35 lb with cover
Warranty: 3 years
Legendary Products & Support From Authorized Dealers
When you choose Fusion, you're choosing quality and performance. But just as important as what you buy is where you buy it from. Here's why purchasing from an authorized dealer is always the right choice:
▸ Expert Knowledge & Training
Only authorized Fusion dealers are factory-trained to sell and install our products. They have the expertise to ensure your purchase is set up correctly and meets your expectations.
▸ Authorized Warranty Protection:
We offer one of the best warranties in the industry, but only purchases made through authorized dealers are covered. Don't be misled by unauthorized sellers who can't provide genuine warranty support.
▸ Reliable Customer Support:
If you ever run into an issue, you're backed by Fusion's official manufacturer's warranty. No need to deal with overseas returns—our local team takes care of everything quickly and efficiently.
▸ Protect Your Investment:
Buying from an authorized dealer ensures you're getting genuine products, full warranty coverage, and expert support. Ask yourself—is saving a few dollars worth losing all that?
Choose wisely. Buy from an authorized Fusion dealer today!
