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Description
Rockford Fosgate PBR400X4D - 4 Channel AmplifierThe Rockford PBR400X4D is a full range 4 channel amplifier designed for stereo front rear systems that requires little space. The BRT (Boosted Rail Technology) is an ultra efficient design that generates 400 Watts of power! The BRT also has a variable hi level DC offset turn on circuit for easy installation into any OEM system. Great for motorcycles and recreational vehicles. Full Range Class D Differential inputs with high level auto turn on feature
The Rockford PBR400X4D is a full-range 4-channel amplifier designed for stereo front/rear systems that requires little space. The BRT (Boosted Rail Technology) is an ultra efficient design that generates 400 Watts of power! The BRT also has a variable hi-level DC offset turn-on circuit for easy installation into any OEM system. Great for motorcycles and recreational vehicles.
- Full Range Class D
- Differential inputs with high level auto turn-on feature
- 8 AWG power/ground connector
- Remote-Out feature when using high level inputs
- C.L.E.A.N. input/output clip detection and indicator LEDs
- Real time output and power supply thermal sensing
- Extruded aluminum heatsink
- Selectable Fixed 12dB/Octave Butterworth Crossovers
- Muted turn on
- Rockford Fosgate proprietary protection
- Discrete surface mount technology
- Compact design for stealth installations
- CEA-2006 and CE compliant
- 1 Year Warranty
- 2006 Guidelines CEA-2006
- Power Rating 50W x 4 @ 4Ω ≤1.0% THD+N
- Number of Channels 4
- Total Power (Sum of Rated Power) 400 Watts
- Rated Power (RMS Continuous Power)
- 50 Watts x 4 @ 4-Ohm
- 100 Watts x 4 @ 2-Ohm
- 200 Watts x 2 @ 4-Ohm Bridged
- Dynamic Power (PVC/PowerCube®)
- 75 Watts x 4 @ 4-Ohm
- 130 Watts x 4 @ 2-Ohm
- 270 Watts x 2 @ 4-Ohm Bridged
- Bridgeable
- Frequency Response 20Hz - 20kHz +/- 1dB
- Input Sensitivity 150 mV to 12 V
- Circuit Topology Class Class D
- Efficiency (average) > 75%
- Total Harmonic Distortion (THD+Noise) 4-Ohm < 1.0 / 2-Ohm < 1.0
- Signal Input
- Input Switch: 2ch/4ch input switch
- Hi-Level: Variable DC offset sensitivity
- High-Level: Harness Low-Level: 2 Pair RCA
- Crossover Controls
- High-Pass: 60Hz or 80Hz @ 12dB/Octave
- Low-Pass: 80Hz @ 12dB/Octave
- Visual Indicators
- Power: Blue
- Protect: Red
- Input Clip: Red
- Output Clip: Blue/Violet/Red
- LED Color Legend
- BLUE: <0.5% TDH
- VIOLET: 1% THD
- RED: ≥10% THD
- Power Wire Gauge 8 AWG
- Power Input Connector Detachable Compression Terminal
- Speaker Wire Gauge 16 AWG
- Speaker Output Connector
- Front: 4-Pin Harness
- Rear: 4-Pin Harness
- Cooling Convection Heatsink Extruded Aluminum
- Operating Voltage 9 - 16 VDC
- Recommended Fuse (not included) 60 A
- Average Current Draw (13.8V Music) 27 A
- Max. Current Draw (13.8V Sinewave) 50 A
- Suggested Alternator 75 A
- Dimensional Diagram
- Dimensions (H x W x D)
- 1.53 x 4.25 x 6.75 (in)
- 3.9 x 10.79 x 17.16 (cm)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1298 reviews
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Product Reviews
★★★★★ 5
Nice pillows
Size: Queen, Number of Items: 2
Have had these a few months and so far really like them!
They don’t really feel very cooling, but I also run VERY HOT so it could just be me. The foam holds up well and hasn’t flattened like others I’ve tried.
They come very compacted- I was shocked how much they expanded!
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Mr.b
Size: Standard, Number of Items: 2
The pillows are cool and comfortable
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Awesome Pillow!!!
Size: Queen, Number of Items: 1
This pillow is Amazing!!! So Great to sleep on. I finally can get a good night's sleep!!! Its very soft and comfortable. I also haven’t gotten up with a stiff neck in the morning either!!!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Love them!!
Size: Queen, Number of Items: 2, Size: Queen, Number of Items: 2
Ok I normally don't leave reviews but I had to on this pillow. I was looking forever for a pillow and was nervous about buying one because you know how that usually goes when it comes to buying pillows. They arrived compressed but when you unwrap them they blow up to be a heavy duty pillow. Firm but not too firm. I don't like super soft pillows that you can roll up in a ball with one hand, I like a pillow that gives support and these do just that. They are cooling as well they are pretty for a pillow with the unique design. If you are in the market for a pillow and reading this THEN BUY THIS PILLOW & come back to tell me thank you. I promise you will NOT be disappointed. No I didn't get paid to say any of this. I wanted to give a honest review where it deserves one! You will not be disappointed! Thanks for the fast over night shipping as well. Not to mention the pricing is on point. I can say right now you will not find 2 pillows of this quality & price.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Perfect pillows
Size: Queen, Number of Items: 2
Soft, but durable. Comfortable and cool during sleep.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026