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Super Small Multi-Channel The new SS amplifiers are the latest in high speed, high current class D designs offering high power and superior sound quality in compact footprints. The classic DD AUDIO style heat sink is used in this upgrade for max cooling with 50% more side wall thickness than industry norms and extra long fins to increase surface area. All major components have been upgraded; higher current mosfets and output devices, increased power capacitors, a more powerful transformer, plus improved venting and PCB with twice the thermal capability.These new high-end mini amps are state of the art, no compromise designs yielding the best sound with unparalleled power to size ratio. The transformation is not only tangible, but audibly apparent.The SS4.500 is a 4 channel amplifier delivering a minimum of 125 Watts per channel from a mere 30 square inch footprint. This versatile, high speed, class D design can drive full range components and subwoofers through selectable high pass and low pass crossovers. These super small amplifiers are the ultimate combination of precision sound quality and installation ease. For the SS Series the main design focus was to pack as much full-range stereo output capability as possible into as compact of a chassis as possible. We utilized discrete circuit class D technology for ultra low distortion levels that rival class AB designs. The resulting amp is capable of driving multiple driver mid-range and tweeter arrays while consuming less current, taking up less space and delivering more power. Features: High Level Inputs 12dB/Oct High Pass/Low Pass X-Overs Heavyweight DD Aluminum Chassis Set Screw Power and Speaker Terminals 4 AWG Power Terminals Specifications: Operating Voltage: 9 - 16 Test Voltage: 14.4 Input Channel(s): 4 Output Channel(s): 4 Continuous Wattage @4ohm: 75 x 4 Continuous Wattage @2ohm: 125 x 4 Max Current Draw (Amps): 40 RCA Input Voltage Sensitivity: 6 - 0.25 High-Level Input Voltage Sensitivity: 20 - 1.1 RCA Input S/N: > 95 Damping Factor: > 100 THD: < 0.1% Frequency Response (Hz): 20 - 20k High Pass Filter: 35 - 250 Low-Pass Filter: 35 - 250 ZVL Input: No Pass Thru Output: No Power Wire Gauge: 4 Speaker Wire Gauge: 12 Dimensions (Inches): 5.75 x 4.5 x 2 Dimensions (MM): 146 x 115 x 50 Shipping Weight (Lbs): 4 Legendary Products & Support From Authorized Dealers When you choose DD Audio, 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 DD Audio 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 DD Audio'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 DD Audio dealer today!
$449.00 $349.00
Ultra-Compact 400W 4-Channel Amplifier Class-AD, Constant Power, C.L.E.A.N. Clip Detection, and a 2/4-Channel Input Switch for Flexible Integration. Product Overview The Rockford Fosgate Power T400X4AD is a 400W 4-channel amplifier built on the same Class-AD platform as the T400X2AD delivering high efficiency in an ultra-compact chassis purpose-built for hybrid and electric vehicles, small cars, motorcycles, and side-by-side UTVs. While the T400X2AD handles two channels, the T400X4AD extends this to four channels, making it the appropriate choice when all four speaker positions (front left, front right, rear left, rear right) need amplification from a single compact unit. A 2/4-channel input switch is a key addition over the 2-channel model allowing the amplifier to accept either a full 4-channel input from four RCA connections or a 2-channel input that is internally split to drive all four output channels. This simplifies integration with headunits that offer only a 2-channel RCA output while still delivering amplification across all four speaker positions. High-level inputs with auto turn-on, Remote-Out, C.L.E.A.N. clip detection, top-mounted controls, dual fan cooling, and 4Ω bridged capability complete the feature set shared with the T400X2AD. Key Specifications Power output: 400W total (4-channel — rated power per channel at specific impedance not confirmed — see Red-flags) Amplifier class: Class-AD (Rockford Fosgate proprietary) Configuration: 4-channel Constant Power: Yes — same output at 4Ω and 2Ω (multi-impedance) 2/4 channel input switch: Yes Bridged operation: Yes — 4Ω bridged capable High-level inputs: Yes — with auto turn-on Low-level inputs: Yes (RCA) Remote-Out: Yes — when using high-level inputs C.L.E.A.N. input/output clip detection: Yes — with LED indicators Crossover: Built-in (type/slope not specified — confirm with Rockford Fosgate) Cooling: Dual fan forced induction + dual extruded heat sinks + real-time thermal sensing Controls: Top mounted Power/ground connectors: 8 AWG RCA connectors: Upgraded 3-stage thermal lock extrusion: Yes Discrete surface mount technology: Yes 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 4-Channel Output for Full Speaker Coverage — Amplifies all four speaker channels (front and rear left/right) from a single compact unit — providing a full-vehicle speaker upgrade without requiring a second amplifier or a larger chassis. 2/4 Channel Input Switch — A key practical addition over the T400X2AD. In 2-channel mode, a single stereo RCA input is split internally to drive all four output channels — ideal for head units that offer only a 2-channel preamp output or systems where running four RCA cables is impractical. In 4-channel mode, discrete stereo front and rear inputs allow independent level control across the front and rear channels. Class-AD Technology — Ultra-Compact High Efficiency — The same Class-AD topology as the T400X2AD, delivering high efficiency in a compact chassis suited to hybrid vehicles, electric vehicles, UTVs, motorcycles, and small cars where a conventional full-size 4-channel amplifier will not fit. Constant Power at 4Ω and 2Ω — Maintains the same output wattage at both 4Ω and 2Ω speaker loads — consistent amplifier performance regardless of whether 4Ω or 2Ω speakers are fitted across the four channels. High-Level Inputs with Auto Turn-On — Connects directly to factory head unit speaker outputs without a remote turn-on wire — essential for modern OEM systems, hybrid and electric vehicles, and any installation where a conventional RCA and remote output is unavailable. Remote-Out via High-Level Input — When activated by high-level auto turn-on, the Remote-Out provides a 12V trigger for downstream accessories — enabling a subwoofer amplifier or other accessories to be activated in parallel without a remote wire from the head unit. C.L.E.A.N. Input/Output Clip Detection with LEDs — Monitors both input and output stages for clipping during gain setup, with separate LED indicators for each stage. Removes the guesswork from gain setting — the single most important step for maximising sound quality and protecting speakers and the amplifier. Top Mounted Controls — Gain, crossover, and C.L.E.A.N. indicators are all accessed from the top of the amplifier, making adjustments and visual checks possible without removing the unit from its mounting position. Dual Fan Forced Induction Cooling — Active cooling manages heat in confined mounting spaces common to compact vehicle and UTV installations where passive cooling alone is insufficient. Dual Extruded Heat Sinks with Real-Time Thermal Sensing — Passive and active thermal management in combination — the 3-stage thermal lock extrusion provides staged protection against sustained overload. 4Ω Bridged Capable — Any pair of channels can be bridged to deliver higher output to a single 4Ω load — adding subwoofer drive or high-power speaker capability to the 4-channel configuration. Technical Specs Specification Detail Brand Rockford Fosgate Part Number T400X4AD Series Power Power Output 400W (4-channel total) Amplifier Class Class-AD (Rockford Fosgate proprietary) Configuration 4-Channel Constant Power Yes — same output at 4Ω and 2Ω 2/4 Channel Input Switch Yes Bridged Operation Yes — 4Ω bridged capable High-Level Inputs Yes — with auto turn-on Low-Level Inputs Yes (RCA) Remote-Out Yes (when using high-level inputs) C.L.E.A.N. Clip Detection Input and output — with LED indicators Crossover Built-in — type/slope not specified Cooling Dual fan + dual extruded heat sinks + real-time thermal sensing Controls Top Mounted Power/Ground Connectors 8 AWG RCA Connectors Upgraded Construction Discrete Surface Mount Technology Rated Power per Channel Not specified — confirm with Rockford Fosgate Frequency Response Not specified Signal-to-Noise Ratio Not specified THD Not specified Dimensions Not specified Weight Not specified Warranty Not specified — confirm with Rockford Fosgate Compatible With / Goes Well With Suitable vehicle applications: Hybrid and electric vehicles Small cars and hatchbacks with limited amplifier mounting space Motorcycles and touring bikes Side-by-side UTVs (Polaris RZR, Can-Am Maverick, and similar) Trucks and SUVs requiring a compact 4-channel solution OEM system upgrades where factory head unit high-level outputs are the only available signal source Suitable speaker configurations: Full 4-channel speaker system (front and rear — 4Ω or 2Ω) 2-channel input driving all four outputs via 2/4 channel switch Bridged pairs for higher-output 2-channel or mono applications T400X2AD vs T400X4AD — choosing between them: T400X2AD (2-channel): Front speakers only, or a single stereo zone — simplest integration, PLC2 remote ready T400X4AD (4-channel): Front and rear speakers from a single unit — adds 2/4 channel input switch for flexible headunit integration Pairs well with: Aftermarket door speakers across all four positions (4Ω or 2Ω) A dedicated mono subwoofer amplifier triggered via Remote-Out 8 AWG amplifier wiring kits Rockford Fosgate or aftermarket 4-channel RCA cables Frequently Asked Questions What does the 2/4 channel input switch do? In 2-channel mode, a single stereo (2-channel) RCA input is internally distributed to drive all four amplifier output channels — useful when the head unit has only a 2-channel preamp output. In 4-channel mode, discrete front and rear stereo inputs are used, allowing independent front/rear level control. This makes the T400X4AD compatible with a wider range of head units without requiring additional signal processing. How does the T400X4AD differ from the T400X2AD? Both amplifiers share the same Class-AD platform, feature set, and wattage. The T400X4AD provides four output channels versus two, and adds a 2/4 channel input switch. The T400X2AD includes PLC2 remote compatibility — confirm whether the T400X4AD supports PLC2 remote operation with Rockford Fosgate if this is a requirement. How does the high-level auto turn-on work with a factory system? The high-level inputs accept signal from factory head unit speaker outputs and activate the amplifier automatically when audio signal is present — no remote turn-on wire is required. The Remote-Out then provides a 12V trigger for a downstream subwoofer amplifier or other accessories. What does C.L.E.A.N. clip detection help with during installation? C.L.E.A.N. (Circuit Level Evaluation And Normalisation) monitors both the input and output stages for clipping, with LED indicators for each. During gain setup, the LEDs identify when the signal clips — allowing the gain to be set at the maximum clean level. Correct gain structure is the most effective way to protect speakers from distortion damage and maximise sound quality. Can the T400X4AD be used in a bridged configuration? Yes. Pairs of channels can be bridged to deliver higher output to a single 4Ω load — for example, bridging channels 1 and 2 for a front subwoofer or a single high-output speaker, while channels 3 and 4 continue to drive rear speakers in standard stereo configuration. Confirm the bridged power output at 4Ω with the official Rockford Fosgate datasheet. 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!
$819.00
100 Watts × 4 Channels at 2Ω Compact 4-Channel Amplifier for Front/Rear Systems and Front Stage with Rear Subwoofer. Product Overview The Rockford Fosgate Power T400-4 is a 4-channel amplifier delivering 100W into each of its four channels at 2Ω confirmed by Rockford Fosgate making it suitable for a full 4-way front and rear speaker system or a front stage and rear subwoofer configuration. The compact chassis with Dynamic Thermal Management is specifically designed for under-seat or space-constrained installation locations that full-size 4-channel amplifiers cannot accommodate. Unlike the Class-AD T400X4AD which prioritises ultra-compactness for hybrid vehicles and UTVs the T400-4 is a full-featured conventional design with a MOSFET power supply and output stage, 4-gauge power and ground connectors, a 24dB/octave crossover, and a 2/4 channel input switch for flexible headunit integration. It is the choice when confirmed 100W per channel at 2Ω output is the primary specification requirement, and when the installation allows 4-gauge wiring for maximum power delivery. Key Specifications Power output: 100W × 4 channels @ 2Ω (confirmed) Power output @ 4Ω: Not specified Bridged output: Not specified Configuration: 4-channel MOSFET power supply: Yes MOSFET output stage: Yes Crossover: 24dB/octave 2/4 channel input switch: Yes Power/ground connectors: 4 gauge Speaker connections: Audiophile grade Thermal management: Dynamic Thermal Management Chassis: Compact — under-seat installation capable Amplifier class: Not specified Signal-to-noise ratio: Not specified THD: Not specified Frequency response: Not specified Dimensions: Not specified Weight: Not specified Warranty: Not specified Features & Benefits 100W × 4 Channels at 2Ω — Confirmed Power Specification — Unlike many amplifier listings where per-channel power at a specific impedance is absent, Rockford Fosgate confirms 100W per channel into 2Ω on the T400-4. This gives the system designer a concrete figure to work with when matching the amplifier to 2Ω speaker loads. Power at 4Ω and bridged mono output should be confirmed from the official Rockford Fosgate datasheet. Front/Rear Fading or Front Stage Plus Rear Sub Configurations — The T400-4 is designed for two typical 4-channel setups: a full 4-way front and rear full-range speaker system, or a front stage component system with rear subwoofers driven from the rear channels. The 24dB/octave crossover and 2/4 channel input switch support both configurations without external signal processing. Dynamic Thermal Management for Compact Installation — Rather than a fixed protection shutdown at a temperature threshold, Dynamic Thermal Management actively manages the amplifier's output in response to temperature — reducing output as needed to prevent overheating in confined spaces. This allows the T400-4 to be installed under front seats, in centre consoles, or in other space-constrained locations where heat dissipation is limited. MOSFET Power Supply and Output Stage — MOSFET-based design in both the power supply and output stage provides clean, efficient power delivery and responsive switching — the same proven technology used across the Rockford Fosgate Power series. 24dB/Octave Crossover — Steep crossover slope for precise frequency band separation — enabling high-pass filtering on front stage speakers and low-pass filtering on rear subwoofers, or full-range pass-through for a standard 4-way system. 2/4 Channel Input Switch — In 2-channel mode, a stereo input is internally distributed to all four output channels — allowing connection to head units with only a 2-channel RCA preamp output. In 4-channel mode, discrete front and rear RCA inputs allow independent level control. 4 Gauge Power and Ground Connectors — Appropriate wiring infrastructure for a 400W 4-channel amplifier, ensuring the power delivery path matches the amplifier's output capability. Audiophile Grade Speaker Connections — High-quality output terminals for a solid, low-resistance connection to speaker voice coils across all four channels. Technical Specs Specification Detail Brand Rockford Fosgate Part Number T400-4 Series Power Configuration 4-Channel Power Output @ 2Ω 100W × 4 channels ✓ Power Output @ 4Ω Not specified Bridged Output Not specified Amplifier Class Not specified MOSFET Power Supply Yes MOSFET Output Stage Yes Crossover 24dB/Octave 2/4 Channel Input Switch Yes Power/Ground Connectors 4 Gauge Speaker Connections Audiophile Grade Thermal Management Dynamic Thermal Management Chassis Compact — Under-Seat Capable 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 (full-range crossover setting) Front stage component speakers (high-pass) + rear subwoofers (low-pass via crossover) Under-seat, centre console, or space-constrained installations where Dynamic Thermal Management allows reliable operation Comparing T400-4 vs T400X4AD: T400-4: Confirmed 100W×4 @ 2Ω, 4-gauge wiring, Dynamic Thermal Management, conventional design — suited to standard car audio builds with 4-gauge wiring infrastructure T400X4AD (Class-AD): Ultra-compact, 8 AWG wiring, high-level auto turn-on, C.L.E.A.N. clip detection, PLC2 remote — suited to hybrid/EV, UTV, motorcycle, and OEM integration builds Pairs well with: Rockford Fosgate or aftermarket component front speakers (4Ω or 2Ω) Rear subwoofers or coaxial speakers for the rear channels 4-gauge amplifier wiring kits Rockford Fosgate or aftermarket 4-channel RCA cables Frequently Asked Questions What is the confirmed power output of the T400-4? Rockford Fosgate confirms 100W per channel into 2Ω, for a total of 400W across four channels. Power output at 4Ω and the bridged mono output rating are not confirmed in the supplier data — pull the official T400-4 datasheet for the full power specification table. What does Dynamic Thermal Management mean for installation flexibility? Dynamic Thermal Management actively reduces amplifier output as temperature rises — rather than a hard shutdown — allowing the T400-4 to sustain operation in confined spaces like under front seats where heat dissipation is limited. The amplifier trades peak output for continuous operation in hot or restricted environments. What is the difference between the T400-4 and the T400X4AD? Both are Rockford Fosgate Power series 400W 4-channel amplifiers. The T400-4 is a conventional design with confirmed 100W×4 @ 2Ω, 4-gauge connectors, and Dynamic Thermal Management. The T400X4AD is the Class-AD ultra-compact variant with 8 AWG connectors, high-level auto turn-on, C.L.E.A.N. clip detection, and specific design for hybrid vehicles, UTVs, and motorcycles. The right choice depends on your installation environment and integration requirements. Can the T400-4 run both front speakers and rear subwoofers simultaneously? Yes. This is one of the T400-4's designed use cases — front channels in high-pass mode driving component speakers, rear channels in low-pass mode driving subwoofers. The built-in 24dB/octave crossover provides the frequency separation required for this configuration without external processing. What gauge wiring does the T400-4 require? The T400-4 uses 4-gauge power and ground connectors. A minimum of 4-gauge cable is recommended for the power and ground runs. Confirm the specific cable 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!
$829.00
1,000W Class-AD 4-Channel Full-Range Amplifier Class-A Sound Quality, Class-D Efficiency, Constant Power, 2-Year Warranty. Product Overview The Rockford Fosgate Power T1000-4AD is a 1,000W 4-channel full-range amplifier built on Rockford Fosgate's Class-AD technology an amplifier topology combining the sound quality characteristics of a Class-A design with the power efficiency of Class-D. Where Class-BD was developed for brute subwoofer power, Class-AD is Rockford Fosgate's answer for high-fidelity, full-range speaker amplification designed for front stage component systems, full-range 4-way installations, and any application where audio quality across the full frequency spectrum is the priority. Sound quality is enhanced through dynamic switching frequency control a technique that optimises the amplifier's internal switching frequency dynamically for improved linearity and reduced audible artefacts. Constant Power circuitry produces optimised output across a range of impedances. Combined with MOSFET power supply and output stages, 24dB/octave crossover, RCA pass-thru, and a confirmed 2-year warranty, the T1000-4AD is Rockford Fosgate's premium full-range 4-channel Power series amplifier. Key Specifications Power output: 1,000W total (4-channel — per-channel rated power at specific impedance not confirmed — see Red-flags) Amplifier class: Class-AD (Class-A sound quality + Class-D efficiency) Configuration: 4-channel, full-range Constant Power: Yes — optimised output across a range of impedances Dynamic switching frequency control: Yes Crossover: 24dB/octave 2/4 channel input switch: Yes RCA pass-thru outputs: Yes MOSFET power supply: Yes MOSFET output stage: Yes Power/ground connectors: 4 gauge Speaker connections: Audiophile grade 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: 2 years ✓ Features & Benefits Class-AD — Class-A Sound Quality with Class-D Efficiency — Class-A amplifiers are widely regarded for their linearity and low distortion but are thermally inefficient and physically large. Class-D amplifiers are highly efficient but have historically made compromises in audio quality. Rockford Fosgate's Class-AD combines the sonic characteristics of Class-A operation with the power efficiency of Class-D — delivering high-fidelity full-range amplification in a format suited to demanding car audio installations. Dynamic Switching Frequency Control — A proprietary technique that dynamically adjusts the amplifier's internal switching frequency to optimise linearity and minimise switching-related artefacts — contributing to the Class-AD's high-fidelity performance across the full audio frequency range. This is the technical mechanism that distinguishes Class-AD's audio quality from standard Class-D designs. Constant Power — Optimised Output Across Impedances — The Constant Power circuitry maintains optimised output across a range of speaker impedance loads — providing consistent performance whether 4Ω or 2Ω speakers are connected, without the significant power variation seen in standard amplifier designs at different load impedances. 1,000W 4-Channel Full-Range Configuration — 250W per channel (total rated — confirm per-channel at specific impedance from the official datasheet) across four full-range channels. Designed for high-output front and rear speaker systems where component speakers or full-range coaxials require substantial clean power to achieve their performance potential. RCA Pass-Thru Outputs — Signal pass-through allows the headunit RCA signal to be looped to a downstream amplifier — enabling the T1000-4AD to drive four speaker channels while simultaneously feeding a dedicated subwoofer amplifier for a complete multi-amplifier system. 24dB/Octave Crossover — Steep crossover slope for precise frequency band management — enabling high-pass filtering on front and rear speakers and the option to configure rear channels for subwoofer use in mixed speaker/subwoofer builds. 2/4 Channel Input Switch — Accepts either a 2-channel stereo input (internally distributed to all four outputs) or discrete 4-channel front and rear RCA inputs — accommodating both 2-channel and 4-channel headunit preamp configurations. MOSFET Power Supply and Output Stage — MOSFET implementation across both supply and output stages supports the high-current, low-noise delivery required for Class-AD's high-fidelity operation. 4 Gauge Power and Ground Connectors — Appropriate power delivery infrastructure for a 1,000W 4-channel amplifier. Audiophile Grade Speaker Connections — High-quality output terminals across all four channels for low-resistance, high-integrity speaker connections. 2-Year Warranty — Confirmed manufacturer warranty — two years of coverage on Rockford Fosgate's flagship full-range 4-channel Power series amplifier. Technical Specs Specification Detail Brand Rockford Fosgate Part Number T1000-4AD Series Power Configuration 4-Channel, Full-Range Amplifier Class Class-AD Power Output (Total) 1,000W Power per Channel @ 2Ω Not specified — confirm with Rockford Fosgate Power per Channel @ 4Ω Not specified — confirm with Rockford Fosgate Bridged Output Not specified — confirm with Rockford Fosgate Constant Power Yes Dynamic Switching Frequency Control Yes Crossover 24dB/Octave 2/4 Channel Input Switch Yes RCA Pass-Thru Outputs Yes MOSFET Power Supply Yes MOSFET Output Stage 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 2 Years ✓ Compatible With / Goes Well With Designed for: High-fidelity full-range front and rear speaker systems Front stage component speaker systems requiring high-power, low-distortion amplification Multi-amplifier builds: T1000-4AD for speaker channels + dedicated mono sub amp via RCA pass-thru Demanding audiophile-oriented car audio builds where audio quality is the primary concern Pairs well with: Rockford Fosgate Power series mono subwoofer amplifiers (T1000-1BDCP, T1500-1BDCP, T2500-1BDCP) via RCA pass-thru Rockford Fosgate Power series component front stage speakers 4-gauge amplifier wiring kits Rockford Fosgate or aftermarket 4-channel RCA cables Frequently Asked Questions What does Class-AD mean and why does it matter for full-range speakers? Class-AD combines the sound quality characteristics of Class-A amplification with the power efficiency of Class-D. Class-A designs are highly linear and produce very low distortion but are thermally inefficient. Class-D is efficient but involves switching-based operation that can introduce artefacts. Rockford Fosgate's Class-AD and its dynamic switching frequency control aim to deliver high-fidelity full-range performance with efficient power delivery — a meaningful advantage for component speaker systems that operate across the full 20Hz–20kHz range. What is dynamic switching frequency control? Dynamic switching frequency control is a technique where the amplifier dynamically adjusts its internal switching frequency based on the signal being amplified. This optimises linearity at each operating point, reducing the audible by-products of switching-mode amplification — contributing to the Class-AD's high-fidelity performance compared to standard fixed-frequency Class-D designs. What is the confirmed per-channel power output of the T1000-4AD? The total rated power is 1,000W across four channels. Per-channel power at 2Ω and 4Ω is not confirmed in the supplier data — pull the official Rockford Fosgate T1000-4AD datasheet for the full power specification table, including per-channel RMS at each impedance. How does the T1000-4AD differ from the T600-4? The T1000-4AD delivers 1,000W total (vs the T600-4's 600W), uses Rockford Fosgate's Class-AD technology with dynamic switching frequency control, and is specifically designed for high-fidelity full-range use. Both include RCA pass-thru. The T600-4 uses a conventional MOSFET design. For audiophile-oriented builds where audio quality is the priority, the T1000-4AD is the appropriate choice. Is the T1000-4AD suitable for running subwoofers on the rear channels? Yes. The 24dB/octave crossover allows the rear channels to be configured in low-pass mode for subwoofer use. However, the T1000-4AD's primary design intent is high-fidelity full-range speaker amplification via Class-AD technology — for dedicated subwoofer channels, a Class-BD mono amplifier (T1000-1BDCP, T1500-1BDCP, T2500-1BDCP) connected via the RCA pass-thru is the more appropriate and more powerful solution. 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!
$2,359.00
Experience Big Sound in a Small Package with the ZXM500.4 Class-D Mini Amplifier The ZXM500.4 is an impressive Class-D 4-channel Mini Amplifier. The ZXM amplifiers are made to be as small as possible without compromising sound quality, power and functions. The ZXM500.4 is a 4-channel amplifier with a total power of 500W RMS. This equals 4x80W RMS in 4Ohm but the amplifier is stable into 2Ohm and then delivers 4x125W RMS. The 4 channels can also be bridged into 2x250W RMS in 4Ohm. The amplifier comes with adjustable HP/ LP filters and also a switch to use 2ch input or 4ch input low or high level. A high level of engineering has gone into making these amps with low EMI emissions to not interfere with the advanced electronics or FM signal. Introducing the ZXM500.4, a groundbreaking Class-D 4-channel Mini Amplifier that redefines the standards of power, performance, and compact design in audio amplification. The ZXM series is engineered with a paramount focus on delivering exceptional sound quality without compromise. The ZXM series is engineered with a paramount focus on delivering exceptional sound quality without compromise. The ZXM500.4, in particular, showcases an impressive total power output of 500W RMS, allowing you to experience a new auditory experience. Additionally, this versatile amplifier offers the flexibility of bridging the 4 channels to yield an impressive 2x250W RMS in 4Ohm, catering to diverse audio setups and preferences. In addition to its impressive technical specifications, the ZXM500.4 is designed with practicality in mind. Its ultra-small form factor facilitates effortless installation, making it an ideal choice for setups where space is at a premium. The AutoStart functionality on high-level input simplifies usage, ensuring hassle-free operation. From Full Class-D technology optimizing efficiency to exceptional signal-to-noise ratio and minimal distortion, the ZXM500.4's specs speak volumes about its commitment to top-tier audio performance. The ZXM500.4 doesn't compromise on safety either. It comes equipped with an array of protective measures, including short circuit, thermal, and high/low voltage protection, ensuring the longevity of the amplifier while prioritizing user safety. Beyond its exceptional power and performance, this amplifier boasts an engineering marvel by minimizing electromagnetic interference (EMI). This ensures that the amplifier operates without interference, preserving the integrity of advanced electronics and FM signals, maintaining audio quality. the ZXM500.4 stands as a pinnacle of innovation, engineering, and performance in the realm of Class-D amplifiers. With its compact size, staggering power output, advanced features and engineering, it elevates audio experiences to new heights. The ZXM500.4 is an impressive Class-D 4-channel Mini Amplifier. The ZXM amplifiers are made to be as small as possible without compromising sound quality, power and functions. The ZXM500.4 is a 4-channel amplifier with a total power of 500W RMS. This equals 4x80W RMS in 4Ohm but the amplifier is stable into 2Ohm and then delivers 4x125W RMS. The 4 channels can also be bridged into 2x250W RMS in 4Ohm. The amplifier comes with adjustable HP/ LP filters and also a switch to use 2ch input or 4ch input low or high level. Phoenix Gold ZXM500.4 Features: Massive Power & Performance Full Class-D technology offers efficiency & performance Short circuit/thermal and high/low voltage protection Excellent signal-to-noise ratio and FM noise rejection Built-in protection LED light status indicator Surface mount component technology Ultra small size for easy installation Autostart on high-level input Full adjustable HP & LP filter Phoenix Gold ZXM500.4 Specifications: Class-D 4-Channel Mini Amplifier Power (MAX) 1000W Power Ratings (RMS) 125W x 4 @ 2Ohm 80W x 4 @ 4Ohm 250W x 2 @ 4Ohm bridged Frequency Response: 20Hz – 20kHz Signal to Noise Ratio: > 90dB Total Harmonic Distortion: < 0.3% Low Pass Filter: 40Hz – 400Hz (12dB/Oct) High Pass Filter: 40Hz – 400Hz (12dB/Oct) High-Level Input Auto Turn-On Dimensions (LxWxH) 165 x 83.1 x 34.8mm Legendary Products & Support From Authorized Dealers When you choose Phoenix Gold, 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 Phoenix Gold 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 Phoenix Gold'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 Phoenix Gold dealer today!
$499.99
Designed to Be a True Worldwide Product! Orion 1600W 4-channel XTR series class A/B stereo amplifier. Specifications: RMS Power Rating: ¢ 4 ohms: 130 watts x 4 chan. ¢ 2 ohms: 200 watts x 4 chan. ¢ Bridged, 4 ohms: 400 watts x 2 chan. Max power output: 1600 watts Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators Variable Bass Boost (0 to +12 dB bass boost at 50 Hz) Soft start turn-on/turn-off Bass boost circuit with tri-mode capabilities Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy duty aluminum alloy heat-sink for extreme heat dissipation Variable high-pass filter (50-400 Hz, 12 dB/octave) Variable low-pass filter (50-400 Hz, 12 dB/octave) Heavy duty gauge direct-wire with high current power and speaker terminals CEA-2006 compliant amplifier Dimensions: 9-5/16"D x 14-5/16"L x 2-1/2"H 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!
$750.00
Proud to Be Loud! Orion XTR amplifier 4 channel 500 watts RMS. 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!
$699.00
Designed to Be a True Worldwide Product! Orion 700W 4-channel XTR series A/B stereo amplifier. Specifications: RMS Power Rating: ¢ 4 ohms: 65 watts x 4 chan. ¢ 2 ohms: 90 watts x 4 chan. ¢ Bridged, 4 ohms: 180 watts x 2 chan. Max power output: 700 watts Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators Variable Bass Boost (0 to +12 dB bass boost at 50 Hz) Soft start turn-on/turn-off Bass boost circuit with tri-mode capabilities Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy duty aluminum alloy heat-sink for extreme heat dissipation Variable high-pass filter (50-400 Hz, 12 dB/octave) Variable low-pass filter (50-400 Hz, 12 dB/octave) Heavy duty gauge direct-wire with high current power and speaker terminals CEA-2006 compliant amplifier Dimensions: 9-5/16"D x 10-1/8"L x 2-1/2"H 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!
$429.00
Designed to Be a True Worldwide Product! Orion 2400W 4-channel XTR series class A/B stereo amplifier. Specifications: RMS Power Rating: ¢ 4 ohms: 200 watts x 4 chan. ¢ 2 ohms: 300 watts x 4 chan. ¢ Bridged, 4 ohms: 600 watts x 2 chan. Max power output: 2400 watts Pulse Width Modulated MOSFET power supply LED power (green) and protect (red) indicators Variable Bass Boost (0 to +12 dB bass boost at 50 Hz) Soft start turn-on/turn-off Bass boost circuit with tri-mode capabilities Preamp RCA outputs to daisy chain multiple amps 3-way protection circuitry (thermal, overload, and speaker short protection) Dual speaker terminals simplify the hookup of multiple speakers Heavy duty aluminum alloy heat-sink for extreme heat dissipation Variable high-pass filter (50-400 Hz, 12 dB/octave) Variable low-pass filter (50-400 Hz, 12 dB/octave) Heavy duty gauge direct-wire with high current power and speaker terminals CEA-2006 compliant amplifier Dimensions: 9-5/16"D x 17-7/16"L x 2-1/2"H 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!
$945.00
High-Performance Multi-Channel Class D Amplifier from JBL! Class D DesignEvery Stadium amplifier, including the full-range models, features high-efficiency Class D topology. This technology allows JBL to engineer amplifiers that are more compact, generate less heat, and draw less current from the vehicle’s electrical system. Low DistortionJBL Stadium amplifiers have been engineered to deliver the lowest distortion possible, enhancing the audio experience regarldess of output level. Full On-Board ProtectionJBL Stadium 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 TerminalsAll JBL Stadium amplifiers come 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 footprintWith it becoming more and more difficult to find spacious locations for amplifier mounting, JBL Stadium amplifiers have been developed in a small compact form factor to allow more location versatility. Sleek designSometimes, an amp can be as stylish as it is powerful. JBL Stadium amplifiers have a clean, streamlined industrial design. Full-Range Line OutputsThe full-range Stadium amplifiers (Stadium 5, Stadium 4 and Stadium 2) 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. Uncover Great Sound (The Unveiling of Sound)Stadium mono and full-range, multi-channel amplifiers deliver the efficiency and power you expect from Class D amplifiers – and the performance you expect from JBL. 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. Stadium amplifiers give you power to shape your car audio experience in new ways. Specifications: High-performance, mono Class D subwoofer High-Efficiency, Low Distortion Class D Full-range, 4-channel Audio Specifications Max Power1500W Peak Power Output, 2Œ©120Wrms x 4, <0.1% THD+N Power Output, 4Œ©100Wrms x 4, <0.1% THD+N Power Output, 4Œ© Bridged240Wrms x 4, <0.3% THD+N Signal-to-Noise Ratio>=80dB (ref 1W output @ 4Œ©) What's in the box: 1x Amplifier 2x Differential Speaker-Level Adapter 1x E.A.R.L Terminal 1 x Owner's manual Legendary Products & Support From Authorized Dealers When you choose JBL, 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 JBL 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 JBL'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 JBL dealer today!
$899.95 $649.00
Highlights: What's In The Box: Similar Products Infinity 622MLT 6-1/2" Two-Way Marine Audio Multi- $184.42 Infinity 622MLW 6-1/2" Two-Way Marine Audio Multi- $193.00 Infinity INF4100MSBSIL 4100msb Amplified Marine So $1399.00 Infinity REF-4555A Reference 4555A High-Performanc $599.00 Infinity REF-551A Reference 551A High-Performance $347.00 Highlights: SPECIFICATIONS: GENERAL SIGNAL-TO-NOISE RATIO ‚â•85DB (REF 1W OUTPUT @ 4Œ©) MAX POWER 1000W PEAK Legendary Products & Support From Authorized Dealers When you choose Infinity, 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 Infinity 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 Infinity'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 Infinity dealer today!
$316.85
Rockford Fosgate PBR400X4D Punch 400 Watt 4-Channel Class D Amplifier When space is tight but power cannot be compromised, the PBR400X4D delivers 400 watts of full-range Punch Series performance in one of the most compact 4-channel footprints Rockford Fosgate makes. Product Overview The PBR400X4D is a full-range Class D 4-channel amplifier from Rockford Fosgate's Punch Series, engineered specifically for installations where space is at a premium. Powered by Boosted Rail Technology (BRT), an ultra-efficient proprietary power supply design, it generates 400 watts of total RMS output while keeping current draw low enough to suit trucks, sub-compact vehicles, electric vehicles, and hybrids where electrical system demand is a critical consideration. The amplifier operates at 4 ohm or 2 ohm stereo and 4 ohm bridged/mono, with selectable fixed 12 dB/octave Butterworth crossovers covering High-Pass and Low-Pass filter positions. A variable DC offset high-level input circuit with signal-sense turn-on simplifies integration with OEM head units and factory systems. MEHSA3 thermal management handles heat dissipation through an extruded aluminium heatsink, while real-time output and power supply thermal sensing monitors operating conditions continuously. The C.L.E.A.N. clip detection system uses a tri-colour LED indicator that identifies exact THD levels rather than just clipping events, giving a precise read on signal quality. Muted turn-on prevents transient noise through the speakers during power-up. CEA-2006 and CE compliant, with a 1-year warranty, designed and engineered in the USA. Features & Benefits Boosted Rail Technology (BRT): Rockford Fosgate's proprietary ultra-efficient power supply design generates 400 watts of output while minimising current consumption from the vehicle's charging system, making the PBR400X4D well suited to electric, hybrid, and sub-compact vehicles where alternator and battery capacity is limited. C.L.E.A.N. Clip Detection with Tri-Colour LED: The C.L.E.A.N. input and output clip indicator uses a three-colour LED system to provide precise distortion feedback: Blue indicates less than 0.5% THD (clean signal), Violet indicates 1% THD (approaching clip), and Red indicates 10% THD or greater (clipping). This is a more detailed read of signal quality than a standard clip light. MEHSA3 (Maximum Efficiency Heat Sink Application): Reduces MOSFET operating temperatures, lowers distortion levels, increases overall durability, and extends the lifespan of output devices under sustained use, working in combination with the extruded aluminium heatsink for convection cooling. Real-Time Thermal Sensing: Continuous monitoring of both the output stage and power supply thermal conditions allows the amplifier to respond to temperature changes proactively, protecting internal components during demanding listening sessions. DSM Circuit Technology: 1% tight-tolerance surface-mount components improve circuit efficiency, reduce crosstalk between discrete components, and lower operating temperature throughout the signal path. Variable DC Offset High-Level Turn-On: The hi-level input includes a variable DC offset sensitivity circuit for reliable signal-sense turn-on across a wide range of factory head units and OEM systems, with no remote turn-on wire required when using high-level inputs. Remote-Out Feature: When using high-level inputs, the PBR400X4D provides a Remote-Out signal that can be used to trigger downstream components, simplifying multi-component installations without a separate remote turn-on distribution. Selectable Fixed Crossovers: High-Pass crossover is selectable at 60 Hz or 80 Hz at 12 dB/octave Butterworth. Low-Pass crossover is fixed at 80 Hz at 12 dB/octave Butterworth, providing straightforward speaker and subwoofer integration without continuous adjustment. 2/4 Channel Input Switch: A 2-channel to 4-channel input switch allows a single stereo RCA source to feed all four output channels, simplifying installation in vehicles with limited source unit outputs. Compact Stealth Design: At 1.53" x 4.25" x 6.75", the PBR400X4D is designed for concealed installations in tight spaces, including under seats, behind panels, and in factory amplifier locations. Muted Turn-On: Output is muted during the power-up sequence to prevent transient noise from passing through the speakers at switch-on. CEA-2006 and CE Compliant: All power ratings conform to CEA-2006 industry measurement standards at 14.4V with 1% or less THD. No inflated peak figures are used anywhere in the specifications. Technical Specs Specification Detail SKU PBR400X4D Series Punch Number of Channels 4 Amplifier Class Class D, Full Range Total RMS Power 400W RMS Power @ 4 Ohm 50W x 4 RMS Power @ 2 Ohm 100W x 4 Bridged Power @ 4 Ohm 200W x 2 Dynamic Power @ 4 Ohm 75W x 4 Dynamic Power @ 2 Ohm 130W x 4 Dynamic Power Bridged @ 4 Ohm 270W x 2 Bridgeable Yes Minimum Impedance (Stereo) 2 Ohm Minimum Impedance (Bridged) 4 Ohm Frequency Response 20 Hz - 20 kHz +/- 1 dB THD @ 4 Ohm <1.0% THD @ 2 Ohm <1.0% Average Efficiency >75% Input Sensitivity 150 mV - 12V Signal Input (Low-Level) 2 x Pair RCA Signal Input (High-Level) 4-Pin Harness, variable DC offset sensitivity Input Switch 2-channel / 4-channel Signal Output None High-Pass Crossover 60 Hz or 80 Hz @ 12 dB/octave Butterworth (selectable) Low-Pass Crossover 80 Hz @ 12 dB/octave Butterworth (fixed) Tone Controls None Remote Controls None Visual Indicators POWER (Blue), PROTECT (Red), INPUT CLIP (Red), OUTPUT CLIP (Blue/Violet/Red) LED Colour Legend Blue: <0.5% THD, Violet: 1% THD, Red: 10% THD or greater Operating Voltage 9-16V DC Average Current Draw (13.8V Music) 27A Max Current Draw (13.8V Sinewave) 50A Suggested Alternator 75A Recommended Fuse 60A (not included) Power Wire Gauge 8 AWG Speaker Wire Gauge 16 AWG Power Input Connector Detachable Compression Terminal Speaker Output Connector Front: 4-Pin Harness, Rear: 4-Pin Harness Cooling Convection / Extruded Aluminium Heatsink (MEHSA3) Dimensions (H x W x D) 1.53" x 4.25" x 6.75" (3.9 cm x 10.79 cm x 17.16 cm) Shipping Weight 3.1 lbs (1.4 kg) Warranty 1 Year Compliance CEA-2006, CE Goes Well With The PBR400X4D pairs naturally with Rockford Fosgate Punch Series full-range speakers across the front and rear channels, including the P1 and P2 coaxial and component speaker ranges. When bridged to 2-channel operation at 4 ohms, it can also serve as a compact, space-saving subwoofer amplifier in smaller builds. For systems requiring a dedicated subwoofer channel alongside speaker amplification, the onboard 80 Hz Low-Pass crossover option makes it straightforward to cross over rear channels to a subwoofer. Note that this amplifier uses 4-pin harness speaker connectors rather than standard terminal blocks; confirm harness compatibility with the installation vehicle before purchase. An 8-gauge amplifier wiring kit is required for power and ground runs. Frequently Asked Questions What does Boosted Rail Technology (BRT) mean, and why does it matter for electric or hybrid vehicles? Boosted Rail Technology is Rockford Fosgate's proprietary ultra-efficient power supply architecture used in the PBR400X4D. It generates 400 watts of output while keeping current draw significantly lower than a conventional Class AB amplifier of equivalent power. At 13.8V music, average current draw is just 27A, and the suggested alternator rating is 75A. This makes the PBR400X4D well suited to electric vehicles, hybrids, and sub-compact vehicles where the electrical system capacity is more restricted than a conventional petrol-powered vehicle. Does the PBR400X4D need a remote turn-on wire? When using high-level speaker inputs, no remote turn-on wire is required. The variable DC offset high-level input circuit detects the incoming speaker signal automatically and powers the amplifier on. When using RCA inputs, a standard remote turn-on wire from the head unit is required. Additionally, the Remote-Out feature provides a trigger output when the amplifier is running from high-level inputs, which can be used to activate downstream components. What does the tri-colour output clip LED indicate, and how is it different from a standard clip light? The PBR400X4D's C.L.E.A.N. output clip indicator uses three colour states rather than a simple on/off clip light. Blue indicates the signal is clean at less than 0.5% THD. Violet indicates the signal is approaching the clip threshold at 1% THD. Red indicates the signal is clipping at 10% THD or greater. This tri-colour system allows gain to be set more accurately during installation without an external measurement tool. Are the crossover points adjustable, or are they fixed? The crossover points on the PBR400X4D are selectable but fixed, not continuously variable. The High-Pass crossover can be set to either 60 Hz or 80 Hz. The Low-Pass crossover is fixed at 80 Hz. All crossovers operate at 12 dB/octave Butterworth slope. For installations requiring precise variable crossover control, an upstream DSP such as the DSR1 would be needed. What speaker connector type does the PBR400X4D use, and do I need a special harness? The PBR400X4D uses 4-pin harness connectors for both front and rear speaker outputs rather than standard screw or compression terminal blocks. This is part of the compact, stealth-install design. Confirm that compatible 4-pin speaker harnesses are available for the installation vehicle or amplifier location before purchase, as standard bare-wire speaker connections are not supported directly on this amplifier. 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!
$579.00 $492.15
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