Rockford Fosgate P600X4 600 Watts, Four Channels, Built for Any System You Throw at It
Product Overview
The Rockford Fosgate P600X4 is a Punch Series 4-channel amplifier rated at 150 watts RMS per channel at 2 ohms 600 watts total engineered to adapt to virtually any car audio system layout. Run it in full 4-channel stereo for front and rear speakers, bridge both channel pairs into a high-power 2-channel configuration, or operate it in 3-channel mode with stereo speakers up front and a subwoofer on the bridged rear channels. The P600X4 handles all three without compromise.
What sets the P600X4 apart from entry-level 4-channel options is its expanded feature set. RCA pass-thru outputs let you chain additional amplifiers as your system grows without resorting to Y-adapters that degrade signal quality. The optional PLC2 remote Punch Level Control adds a dash-mounted bass adjustment knob with a real-time clip indicator, and the variable HP/LP Butterworth crossover gives you precise per-channel tuning for speakers and subwoofers alike. For Australian builds dealing with heat, corrugations, and long-distance touring, the cast aluminium heatsink and onboard protection circuits keep everything running cleanly.
Key Specifications
Total RMS Output: 600 watts
Per-Channel Output: 150W x 4 at 2 ohms
Channels: 4 (stereo, 3-channel, or bridged 2-channel)
Bridgeable: Yes — bridge both channel pairs for high-power 2-channel operation
Crossover: Variable HP/LP, 12dB/octave Butterworth
Onboard EQ: Punch EQ — +18dB boost at 45Hz
Inputs: High-level (speaker-level) and RCA
RCA Pass-Thru Outputs: Yes
Auto Turn-On: Yes — via high-level input detection
Remote Control: Optional PLC2 Punch Level Control (with input clip indicator)
Turn-On Behaviour: Muted (no thump on startup)
Heatsink: Cast aluminium
Control Panel Position: Stealth top-mounted
Protection: Short circuit and over-current
Features & Benefits
High-Level Input with Auto Turn-On — Connects directly to factory head unit speaker outputs with no RCA cables required. The Auto Turn-On circuit fires the amp when it detects a signal, eliminating the need for a dedicated remote turn-on wire. Ideal for OEM upgrades across any vehicle.
RCA Pass-Thru Outputs — Extend your system by daisy-chaining a subwoofer amplifier or additional channels without Y-adapters. Keeps signal integrity intact and your wiring clean as your build evolves.
C.L.E.A.N. Setup (Clip Level Elimination Audio Notify) — Rockford Fosgate's onboard gain-calibration system takes the guesswork out of setup. Dial in maximum clean output without a multimeter or test tone — useful for installers and enthusiasts alike.
Optional PLC2 Remote Punch Level Control — Adds a dash-mountable knob for real-time bass level adjustment. The input clip indicator lights up before distortion sets in — live feedback that protects your speakers and keeps your tune dialled in on the road.
Variable HP/LP 12dB/Octave Butterworth Crossover — Independently configure each channel pair for high-pass (speakers) or low-pass (subwoofers) operation. The variable crossover point gives you precision tuning without an external processor.
Onboard Punch EQ (+18dB @ 45Hz) — Adds controlled sub-bass punch directly from the amp. No separate bass EQ or processor required for most builds — tune to taste from the top-mounted control panel.
3-Channel Operating Mode — Run full-range or component speakers on the front two channels and bridge the rear pair for a subwoofer — one amp, complete system. Particularly useful in utes and wagons where boot space is at a premium.
Muted Turn-On — No startup thump, no tweeter stress, no giveaway of a poorly executed install. Keeps your system sounding professional from the moment the ignition fires.
Stealth Top-Mounted Control Panel — All gain, crossover, and EQ controls are accessible on the top face of the amp for easy tuning during setup, without cluttering the amp's profile once mounted.
Cast Aluminium Heatsink — Handles extended thermal loads during long listening sessions. In Australian conditions — outback runs, summer road trips, confined boot spaces — heat management is a real-world spec that matters.
Short Circuit & Over-Current Protection — Onboard protection circuits guard the amplifier and your speakers against wiring faults and impedance mismatches.
Technical Specs
Specification
Detail
Total RMS Power
600W
Per-Channel RMS (2Ω)
150W x 4
Number of Channels
4
Operating Modes
4-channel stereo, 3-channel, bridged 2-channel
Bridgeable
Yes (both channel pairs)
Crossover Type
Variable HP/LP Butterworth
Crossover Slope
12dB/octave
Onboard EQ
+18dB boost at 45Hz
Input Type
High-level (speaker-level) + RCA
RCA Pass-Thru
Yes
Auto Turn-On
Yes (via high-level input)
Remote Punch Level Control
Optional (PLC2, sold separately)
Input Clip Indicator
Yes (via PLC2)
Turn-On Mode
Muted
Heatsink Material
Cast aluminium
Control Panel Location
Top-mounted (stealth)
Short Circuit Protection
Yes
Over-Current Protection
Yes
Dimensions
Not specified
Signal-to-Noise Ratio
Not specified
THD
Not specified
Frequency Response
Not specified
Input Sensitivity
Not specified
Compatible With / Goes Well With
System Configurations:
4-way full-range speaker system (front + rear, 4-channel stereo)
3-channel mode — stereo component speakers (front) + bridged subwoofer (rear)
Bridged 2-channel mode — high-power output for two subwoofers or speaker pairs
Front-stage only (component speakers, 2 channels active)
Head Unit Compatibility:
Factory/OEM head units (via high-level input with Auto Turn-On)
Aftermarket head units with RCA pre-outs
Accessories:
Rockford Fosgate PLC2 Remote Punch Level Control (optional, sold separately)
Recommended: use manufacturer-specified power and speaker cables to optimise power delivery (cable spec not provided — confirm with supplier)
Frequently Asked Questions
Can the P600X4 run speakers and a subwoofer at the same time?
Yes. In 3-channel mode, the front two channels power stereo speakers while the rear channels are bridged to drive a subwoofer — a complete system from a single amplifier.
What is the RCA pass-thru and why does it matter?
The RCA pass-thru outputs let you connect an additional amplifier downstream — such as a dedicated subwoofer amp — without using signal-splitting Y-adapters, preserving audio quality as your system grows.
Does the P600X4 work with a factory head unit?
Yes. The high-level input accepts speaker-level signals from any OEM head unit, and the Auto Turn-On circuit activates the amplifier automatically — no remote turn-on wire required.
Is the PLC2 remote punch level control included in the box?
No. The PLC2 is an optional accessory sold separately. It adds a dash-mountable remote bass control knob and a real-time input clip indicator to help you tune on the go without touching the amp.
What does C.L.E.A.N. setup mean and do I need extra tools?
C.L.E.A.N. (Clip Level Elimination Audio Notify) is Rockford Fosgate's built-in gain-setting system. No multimeter or external tools are needed — it guides you to the optimal gain level to maximise output while keeping distortion out of your signal chain.
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!
The Fusion Signature Series Marine 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. Introducing one of our most efficient and stunning marine amplifiers, the SG-DA41400. Its True-Marine design will resist corrosion, and the incredible 1400 Watt peak power will power either four Signature speakers, or two Signature speakers and a subwoofer with ease. Dedicated channel and bridging options are also available to create your own configuration. The SG-DA41400 is a 4 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-DA41400 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. The zone 1 and 2 outputs include four-speaker channels plus a subwoofer. RCA line-level inputs allow for easy connection to new or existing systems. This product is rated True-Marine and carries a 3-year limited consumer warranty.
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!
Value-Packed and Purpose-Built for Quality Audio Amplification on the Water!
The FUSION AM Series marine amplifiers are purpose-built for the marine environment. Boasting some of the most impressive environmental protection available, they deliver performance on the water like never before.
With 4 channels and a 500 Watt peak power output, the MS-AM504 will power either a pair of Fusion speakers plus a 10” subwoofer, or up to four pairs of speakers (with 2 speakers in parallel each channel at 2 Ohms), to spread the sound around your vessel.
Incorporating heat-tempered and conformal coated PCBs for maximum product life, and gold-plated connectors for improved signal flow, the MS-AM504 reproduces clean and powerful audio with enough power to rock the boat.
The Fusion AM Series marine amplifiers are the perfect complement to any Fusion marine stereo system.
Fusion MS-AM504 Features:
500W peak power output to power up to eight speakers
Class-AB amplifier – power efficient with less cross-over distortion
Conformal coated PCBs – water resistant protection from salt air and moisture
FUTRANZ heat sink technology – transfers heat more efficiently and provides more thermal stability with maximum component reliability
F.R.A.T (Fusion Regulated Amplifier Technology) – provides enormous power output at low voltage.
F.I.S.T (Fusion Intercooled Semi-Conductor Technology) – clamps down internal power switching to rapidly remove heat from all associated semi-conductors
Fusion MS-AM504 Specifications:
Amplifier Class Class-AB
Frequency Response 5Hz - 38kHz +/- 3dB
Peak Power 500 Watts
Rated Power (4 Ohms) 65 Watts RMS x 4 @ 14.4V - 4Ω 1% THD
Rated Power (2 Ohms) 100 Watts RMS x 4 @ 14.4V - 2Ω 1% THD
Rated Power (4 Ohms Bridged) 200 Watts RMS x 2 @ 14.4V - 4Ω Bridged 1% THD
Mounting Dimensions:
Length 366mm <14-7/16">
Depth 229mm <9">
Height 53mm <2-1/16">
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!
Highlights: What's In The Box: Highlights: PHYSICAL DIMENSIONS WITHOUT BRACKET (LXWXH): 9.25″ X 7.06″ X 1.75″ (235 X 180 X 45 MM PHYSICAL DIMENSIONS WITH BRACKET (LXWXH): 9.25″ X 7.06″ X 2.13″ (235 X 180 X 50 MM) WEIGHT: 4.85 LB (2.2 KG) WATER RATING: IPX2 AMPLIFIER CLASS: CLASS-D CEA-2006 POWER RATING: 150 WATTS RMS X4 @ 14.4V INPUT 4 OHM < 1% THD TOTAL RATED POWER OUTPUT - 2 OHM (WATTS) :290 WATT RMS X 4 @ 14.4 V INPUT - 2 OHM < 1% THD PEAK POWER (WATTS): 4 CHANNEL: 580 WATT RMS X 2 @ 14.4 V INPUT - 4 OHM BRIDGED < 1% THD TOTAL RATED POWER OUTPUT - 4 OHM BRIDGED (WATTS): 1200 WATTS INPUT SENSITIVITY: 1.3 V RMS INPUT IMPEDANCE: 22K OPERATING VOLTAGE: 10.8 V - 16 V CURRENT CONSUMPTION (STANDBY): < 1.15 A @ 14.4 V INPUT CURRENT CONSUMPTION (IDLE): < 0.89 A @ 14.4 V INPUT CURRENT CONSUMPTION (MAX): 53 A FUSE RATING: 85 A ELECTRONIC FUSE (NO REPLACEMENT NECESSARY IGNITION SAFETY PROTECTED (SAE J1171): YES PROTECTION CIRCUITS REVERSE VOLTAGE, INPUT UNDER/OVER VOLTAGE, OVER TEMPERATURE, OUTPUT SHORT CIRCUIT OPERATING TEMPERATURE RANGE: FROM 0° TO 50° C 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!
Rockford Fosgate M5-800X4 800 Watt 4-Channel IPX6 Element Ready Marine Amplifier
A marine grade 800W 4-channel Class-AD amplifier with IPX6 water intrusion rating, delivering 100W x 4 at 4-ohm (CTA-2006 rated). Features C.L.E.A.N. gain calibration, NOMAD speaker protection, P.O.W.E.R. supply technology, MEHSA4 heat management, Punch EQ2 onboard equaliser, and balanced differential inputs. Bridgeable to 2-channel for 200W x 2 at 4-ohm. Engineered in the USA. Backed by a 1 year warranty.
Product Overview
The Rockford Fosgate M5-800X4 is an 800W 4-channel Class-AD marine amplifier purpose-built for demanding outdoor environments. IPX6 rated and fully Element Ready, it is protected against dust, UV radiation, temperature extremes, water jets from any direction, corrosion, and vibration throughout its service life.
Rated power is 100W x 4 at 4-ohm or 2-ohm, and 200W x 2 at 4-ohm bridged, all at less than 1.0% THD+N and CTA-2006 certified - confirming these are real power numbers, not inflated marketing figures. Dynamic power via PVC/PowerCube reaches 125W x 4 at 4-ohm, 200W x 4 at 2-ohm, and 400W x 2 at 4-ohm bridged. The P.O.W.E.R. supply continues to generate above rated power as voltage increases, and the Constant Power circuit topology delivers instantaneous output across varying impedance loads. Class-AD topology improves efficiency and reduces current draw from the vehicle or vessel charging system.
C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) input and output clip indicators guide precise gain calibration at setup. NOMAD real-time protection guards against shorted speaker wires and dangerously low impedances. MEHSA4 (Maximum Efficiency Heat Sink Application) reduces MOSFET temperatures, lowers distortion, and extends output device life. DSM discrete surface mount components use 1% tight-tolerance parts to improve circuit efficiency, reduce cross-talk, and lower operating temperatures. Balanced differential inputs eliminate noise picked up by signal cables. Punch EQ2 provides up to 18dB of boost at 45Hz and up to 12dB at 12.5kHz for onboard tone shaping.
Features & Benefits
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, making it straightforward to match the source unit output to the amplifier's input sensitivity for optimal, distortion-free performance.
P.O.W.E.R. Supply - More Output as Voltage Rises: The P.O.W.E.R. supply is a unique power supply circuit design that continues to generate above rated output power as supply voltage increases, ensuring the amplifier delivers the output you need even under demanding conditions.
NOMAD Speaker Protection - Real-Time Monitoring: NOMAD is a real-time analog protection circuit that continuously monitors for shorted speaker wires and dangerously low speaker impedances, protecting both the amplifier and connected speakers from damage without requiring manual intervention.
MEHSA4 Heat Management - Lower Temperatures, Longer Life: MEHSA4 (Maximum Efficiency Heat Sink Application) reduces MOSFET operating temperatures, lowers distortion at higher output levels, increases overall amplifier durability, and prolongs the life of the output devices over time.
Punch EQ2 Onboard Equaliser: The Punch EQ2 provides up to 18dB of bass boost at 45Hz for the front and rear channels, and up to 14dB of high-frequency boost at 12.5kHz, enabling onboard tone shaping without a separate equaliser or DSP.
IPX6 Element Ready - Built for Marine and Outdoor Environments: IPX6 water intrusion rating confirms protection against powerful jets of water from any direction. Element Ready construction protects all components against dust, UV radiation, corrosion, temperature extremes, and vibration throughout the service life of the amplifier.
Balanced Differential Inputs: Balanced differential inputs reject noise picked up by signal cables, ensuring a clean signal from source to speaker even in electrically noisy marine or powersports environments.
Technical Specs
Specification
Detail
SKU
M5-800X4
Number of Channels
4
Total Power
800W
Rated Power (CTA-2006, less than 1.0% THD+N)
100W x 4 at 4-ohm
100W x 4 at 2-ohm
200W x 2 at 4-ohm Bridged
Dynamic Power (CTA-2006 PVC/PowerCube)
125W x 4 at 4-ohm
200W x 4 at 2-ohm
400W x 2 at 4-ohm Bridged
Circuit Topology
Class-AD
Bridgeable
Yes
Frequency Response
10 Hz - 50 kHz
THD + Noise
Less than 0.25% at 1 Watt
Input Sensitivity
150mVrms - 12Vrms
Efficiency
Greater than 75%
Signal Input
Low-Level: 4 x RCA / High-Level: (2) 4-Pin Molex
Tone Controls
Front/Rear: 0-18dB at 45Hz / 0-14dB at 12.5kHz
High-Pass Crossover
50 Hz - 250 Hz at 12dB/Octave Butterworth
Low-Pass Crossover
50 Hz - 250 Hz at 12dB/Octave Butterworth
All-Pass
Yes
Power Wire Gauge
8 AWG
Power Input Connector
Compression Terminal Block
Speaker Wire Gauge
16 AWG
Speaker Output Connector
4-Pin Molex
Cooling
Convection
Heatsink
Extruded Aluminium
Operating Voltage
9 - 16 VDC
Recommended Fuse (not included)
80A MAXI (Littelfuse 0299080)
Average Current Draw at 13.8V Music
4-ohm Stereo: 29A / 2-ohm Stereo: 29A / 4-ohm Bridged: 29A
Max Current Draw at 13.8V Sinewave
4-ohm Stereo: 55A / 2-ohm Stereo: 85A / 4-ohm Bridged: 90A
Water Intrusion Rating
IPX6
Visual Indicators
Power: Blue / Protect: Red / Input Clip: Red / Output Clip: Blue/Red
Dimensions (H x W x D)
42.8 x 108 x 213mm (1.7 x 4.25 x 8.41 inch)
Shipping Weight
1.9kg
CTA-2006 Compliant
Yes
Warranty
1 Year
Compatible With / Goes Well With
The M5-800X4 suits marine watercraft, pontoon boats, wakeboard boats, and powersports vehicles requiring a compact, high-performance 4-channel marine amplifier. It is the recommended amplifier pairing for Rockford Fosgate marine speaker kits including the HD9813RG-STG3 and HD9813SG-STAGE2 Harley-Davidson audio kits, as well as standalone marine speaker installations.
Goes Well With:
M2WL-8 / M2WL-8B - Rockford Fosgate M2 series 8 inch wake tower speakers, a direct application pairing for the M5-800X4 in marine builds
TMS6RG / TMS6SG / TMS65 - Rockford Fosgate Element Ready marine and motorcycle fairing speakers driven by the M5-800X4 in HD kit applications
M210S4B / M212S4 - M2 marine subwoofers for full system builds pairing the M5-800X4 with a dedicated marine sub
DSR1 - Rockford Fosgate Digital Signal Processor for advanced signal tuning ahead of the M5-800X4
RFW4R / RFW4B - Rockford Fosgate 4 AWG marine amplifier wiring kits (red or black) to complete the installation
Frequently Asked Questions
What is C.L.E.A.N. and how does it help with setup?
C.L.E.A.N. (Calibrated Level Eliminates Audible Noise) is a patented Rockford Fosgate circuit that uses dedicated input and output clip indicator LEDs to guide amplifier gain calibration. By raising the source unit volume until the input clip LED activates, then adjusting the amplifier gain until the output clip LED just extinguishes, the M5-800X4 can be precisely matched to the source unit for maximum output with minimum distortion - without needing test equipment.
What is the difference between rated power and dynamic power on the M5-800X4?
Rated power is measured under CTA-2006 continuous conditions at less than 1.0% THD+N - these are conservative, real-world figures. Dynamic power figures (via PVC/PowerCube) reflect the amplifier's peak output capability during transient musical peaks, which is higher than the continuous rating. Both sets of figures are CTA-2006 documented and reflect actual measured performance, not inflated marketing claims.
Is the M5-800X4 suitable for saltwater marine environments?
Yes. The M5-800X4 carries IPX6 water intrusion rating and full Element Ready certification, protecting it against water jets from any direction, UV radiation, corrosion, dust, vibration, and temperature extremes. It is designed for both freshwater and saltwater marine applications.
Can the M5-800X4 be used to power a subwoofer?
Yes. The M5-800X4 is bridgeable to 2-channel, delivering 200W x 2 at 4-ohm bridged (or 400W dynamic). Two channels can be bridged to drive a single subwoofer while the remaining two channels power full-range speakers. The onboard low-pass crossover (50-250Hz at 12dB/octave) can be applied to the bridged subwoofer channel for a clean filtered bass signal.
What fuse is required for the M5-800X4 and is it included?
The M5-800X4 requires an 80A MAXI fuse (Littelfuse part number 0299080). The fuse is not included in the box and must be sourced separately. It is recommended to install this fuse as close to the battery as possible in the power supply line.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!
150 Watts × 4 Channels at 2Ω Confirmed Power, RCA Pass-Thru, and Built-In Crossover for Front Stage and Rear Subwoofer Systems.
Product Overview
The Rockford Fosgate Power T600-4 is a 600W 4-channel amplifier delivering 150W per channel at 2Ω confirmed by Rockford Fosgate stepping up from the T400-4's 100W per channel with the same MOSFET, 24dB/octave crossover, and 2/4 channel input switch platform. The addition of RCA pass-thru outputs absent on the T400-4 allows the T600-4 to pass its headunit input signal downstream to a dedicated subwoofer amplifier, making it suitable as the foundation of a full multi-amplifier car audio build without requiring a Y-split at the headunit.
The T600-4 is designed for both full 4-way front and rear speaker systems and front stage component systems with rear subwoofers the built-in crossover allows the rear channels to be configured specifically for one or two subwoofer drivers. Compact chassis design maintains performance and power output without requiring a large installation footprint, providing the balance of output and physical size required for higher-performance builds in standard vehicle installation spaces.
Key Specifications
Power output: 150W × 4 channels @ 2Ω (confirmed)
Power output @ 4Ω: Not specified — confirm with Rockford Fosgate
Bridged output: Not specified — confirm with Rockford Fosgate
Configuration: 4-channel
MOSFET power supply: Yes
MOSFET output stage: Yes
Crossover: 24dB/octave
2/4 channel input switch: Yes
RCA pass-thru outputs: Yes
Power/ground connectors: 4 gauge
Speaker connections: Audiophile grade
Amplifier class: Not specified — confirm with Rockford Fosgate
Signal-to-noise ratio: Not specified — confirm with Rockford Fosgate
THD: Not specified — confirm with Rockford Fosgate
Frequency response: Not specified — confirm with Rockford Fosgate
Dimensions: Not specified — confirm with Rockford Fosgate
Weight: Not specified — confirm with Rockford Fosgate
Warranty: Not specified — confirm with Rockford Fosgate
Features & Benefits
150W × 4 Channels at 2Ω — Confirmed Power Specification — Rockford Fosgate confirms 150W per channel at 2Ω, for a total 600W output. This is 50% more per-channel power than the T400-4 — providing greater headroom for more demanding speaker drivers and higher-output installations. Power at 4Ω and bridged mono output should be confirmed from the official Rockford Fosgate datasheet.
RCA Pass-Thru Outputs — Multi-Amplifier System Integration — An addition over the T400-4, the RCA pass-thru loops the headunit input signal to a downstream amplifier. This allows the T600-4 to drive all four speaker channels while simultaneously passing the signal to a dedicated mono subwoofer amplifier — building a complete multi-amplifier system without splitting the headunit RCA output.
Front Stage Component + Rear Subwoofer Configuration — The 24dB/octave crossover allows the rear two channels to be configured independently for subwoofer use — setting a low-pass crossover point for one or two rear sub drivers while the front channels operate in high-pass or full-range mode for component speakers.
4-Way Full-Range System Capability — All four channels can be configured in full-range or high-pass mode for a standard front and rear speaker system — providing amplification across all four speaker positions from a single unit.
2/4 Channel Input Switch — A stereo 2-channel input can be internally distributed to drive all four output channels, or discrete 4-channel front and rear inputs can be used for independent level control. Accommodates headunits with 2-channel or 4-channel preamp outputs.
MOSFET Power Supply and Output Stage — MOSFET-based power delivery across both the supply and output stages — providing the efficiency and current capacity needed for clean 150W-per-channel operation.
24dB/Octave Crossover — Steep crossover slope for precise frequency band separation — high-pass for front stage speakers, low-pass for rear subwoofers, or full-range pass-through.
4 Gauge Power and Ground Connectors — 4-gauge wiring for a 600W 4-channel amplifier — matching the power delivery infrastructure to the amplifier's output capability.
Audiophile Grade Speaker Connections — High-quality output terminals across all four channels.
Technical Specs
Specification
Detail
Brand
Rockford Fosgate
Part Number
T600-4
Series
Power
Configuration
4-Channel
Power Output @ 2Ω
150W × 4 channels ✓
Power Output @ 4Ω
Not specified — confirm with Rockford Fosgate
Bridged Output
Not specified — confirm with Rockford Fosgate
Amplifier Class
Not specified — confirm with Rockford Fosgate
MOSFET Power Supply
Yes
MOSFET Output Stage
Yes
Crossover
24dB/Octave
2/4 Channel Input Switch
Yes
RCA Pass-Thru Outputs
Yes
Power/Ground Connectors
4 Gauge
Speaker Connections
Audiophile Grade
Signal-to-Noise Ratio
Not specified
THD
Not specified
Frequency Response
Not specified
Dimensions
Not specified
Weight
Not specified
Warranty
Not specified
Compatible With / Goes Well With
Suitable system configurations:
Full 4-way front and rear speaker system
Front stage component speakers (high-pass) + rear subwoofers (low-pass)
Multi-amplifier builds: T600-4 for four speaker channels + mono sub amp connected via RCA pass-thru
T400-4 vs T600-4 — choosing between them:
T400-4 (100W×4 @ 2Ω): Confirmed 100W per channel, Dynamic Thermal Management for under-seat/compact install — best for space-constrained applications
T600-4 (150W×4 @ 2Ω): Confirmed 150W per channel + RCA pass-thru — best when more power and multi-amp signal routing are required
Pairs well with:
A dedicated Rockford Fosgate mono subwoofer amplifier connected via RCA pass-thru (T1000-1BDCP, T1500-1BDCP, or T2500-1BDCP)
Rockford Fosgate or aftermarket component front stage speakers
Rear subwoofers (one or two, wired to 2Ω or 4Ω per channel)
4-gauge amplifier wiring kits
Rockford Fosgate or aftermarket 4-channel RCA cables
Frequently Asked Questions
What is the confirmed power output of the T600-4?
Rockford Fosgate confirms 150W per channel at 2Ω — 600W total across four channels. Power at 4Ω and the bridged mono output are not confirmed in the supplier data. Pull the official T600-4 datasheet for the complete power specification table.
How does the T600-4 differ from the T400-4?
The T600-4 delivers 150W per channel versus the T400-4's 100W per channel (both at 2Ω), and adds RCA pass-thru outputs for downstream amplifier connection — absent on the T400-4. The T400-4 includes Dynamic Thermal Management for compact under-seat installation — confirm whether the T600-4 includes equivalent thermal management from the official Rockford Fosgate documentation.
How does the RCA pass-thru work in a multi-amplifier system?
The RCA pass-thru loops the headunit RCA signal from the T600-4 to a downstream amplifier. This allows the T600-4 to drive four speaker channels while the pass-thru signal feeds a dedicated mono subwoofer amplifier — building a complete speaker and subwoofer system without requiring a Y-split or additional signal distribution at the headunit.
Can the rear channels be used for subwoofers?
Yes. The built-in 24dB/octave crossover can be set to low-pass on the rear channels for subwoofer use, while the front channels run high-pass for component speakers — or all four channels can run full-range for a standard 4-way speaker system.
What gauge wiring does the T600-4 require?
The T600-4 uses 4-gauge power and ground connectors. Confirm the specific run length and fuse requirements for your installation with Rockford Fosgate's wiring guide or your installer.
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!
Infinity Clari-Fi™ 4-Channel Full-Range Car Audio Power Amplifier: Performance You Expect From Infinity - Power and Efficiency!
Kappa mono and full-range, multi-channel amplifiers deliver the efficiency and power you expect from Class D amplifiers—and the performance you expect from Infinity. The comprehensive all new E.A.R.L terminal and power adapter (5-channel & mono block) enables easy installation and optimized performance. For the 5-channel and mono amplifier models, the remote bass control allows the user to increase and decrease bass output independent of head unit tone controls. The industrial design not only provides an elegant look, but also enhances power dissipation to ensure long term reliability. Kappa amplifiers give you power to shape your car audio experience in new ways.
Infinity KAPPAFOUR Features:Class D Design
Every Kappa amplifier, including the full-range models, features high-efficiency Class D topology. This technology allows Infinity to engineer amplifiers that are more compact, generate less heat, and draw less current from the vehicle's electrical system.
Low Distortion
Infinity's Kappa amplifiers have been engineered to deliver the lowest distortion possible, enhancing the audio experience regardless of output level.
Full On-Board Protection
Infinity Kappa amplifiers have on-board circuitry to protect from shorts, temperature, overvoltage and undervoltage. An LED indicator is included on all five models to let the user know when one of these conditions exists.
Proprietary High-Conductivity Terminals
All Infinity Kappa amplifiers equipped with newly introduced E.A.R.L terminal for better grounding. For 5-channel and mono amplifiers, adapter connector is available in the box for easy installation.
Compact footprint
With it becoming more and more difficult to find spacious locations for amplifier mounting, Infinity Kappa amplifiers have been developed in a small compact form factor to allow more location versatility.
Sleek design
Sometimes, an amp can be as stylish as it is powerful. With anodized aluminum and screwdriver access concealed by a magnetically attached panel, Infinity Kappa amplifiers have a clean, streamlined industrial design.
Full-Range Line Outputs
The full-range Kappa amplifiers (Kappa two, Kappa four and Kappa five) include full-range line outputs. This allows the audio signal to be routed to additional amplifiers or self-powered subwoofer solutions, increasing your system configuration options.
What's In The Box:
1x Amplifier
4x Differential Speaker-Level Adapter
2x Spare Fuses
4x Philip Screws
1x E.A.R.L Terminal
3x Self-Tapping Screws
1x Owner’s Manual
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!
The 4 Channel Car Amplifier From Orion Have Been Designed to Be a True Worldwide
Orion's new Cobalt amplifiers are here to change the complete vision of the car audio market. Offering more power, more quality and a more bang for your buck than any of their close competitors.
Quality, power and pricing all come together with Cobalt to create the most efficient amplifier dollar per watt that the industry has ever seen, delivering the power that has always characterised and defined Orion Car Audio.
Legendary Products & Support From Authorized Dealers
When you choose Orion, 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 Orion 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 Orion'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 Orion dealer today!
