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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
4.2 ★★★★★
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Product Reviews
★★★★★ 4
Works
Size: 8.5"x11"
Works great for sublimation. Get plenty of sheets. Great value for the price. The paper is pretty thick and seems to hold a good amount of ink without smearing.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
My go-to sublimation paper for crafting
Size: 8.5"x11"
I've used several sublimation papers, and this one has worked really well for my crafting projects. The colors transfer bright and vibrant, and the images come out crisp with good detail when using the proper sublimation printer and ink. The paper feeds smoothly through my printer and feels like a good quality weight—not too thin and not overly thick. I've used it for tumblers, keychains, and other sublimation projects, and I've been happy with the results. I also appreciate getting 110 sheets in one pack because it lasts a while, especially when working on multiple projects at once. Overall, this is a reliable sublimation paper that gives consistent results and is great for crafters or small business owners.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
My Go-To Sublimation Paper — Flawless Results Every Time
Size: 8.5"x11", Size: 8.5"x11"
This is hands down the best sublimation paper I’ve used and the only one I continue to buy. I get a perfect transfer every single time—no fracturing, no fading, and no uneven results. The paper dries fast, which makes my workflow so much smoother, especially when I’m producing items in batches.
I use this regularly to make air fresheners and tote bags for my small business, and the color payoff is always vibrant and crisp. The transfer rate is excellent, and it works beautifully on light-colored, high-quality polyester and other sublimation-ready surfaces.
If you’re a small business owner or crafter who values consistency, quality, and ease of use, this paper is absolutely worth it. I highly recommend it and will continue to repurchase.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Best Sublimation Paper
Size: 8.5"x11"
I’ve been using A-Sub paper for my sublimation projects, and it is easily one of the best. The ink dries almost instantly once printed, so I don’t have to worry about smudging the design or getting those annoying "pizza wheel" marks from the printer rollers. The paper itself feels substantial and doesn't tear or curl easily. One of the biggest wins for me is that it never jams; it feeds through perfectly every time, saving me the frustration of wasting expensive ink and paper.
When I go to press my designs, the ink releases almost completely, leaving very little behind on the paper and putting all that color onto the project. The final results look super professional, with colors that are vibrant and sharp rather than looking faded or dull. It has worked perfectly for everything I’ve tried so far, and if you want a reliable paper that gives you consistent, high-quality results, this is definitely the one to get.
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Reviewed in the United States on February 25, 2026
★★★★★ 5
Ideal for sublimation beginners.
Size: 8.5"x11"
Asub sublimation paper has been excellent for my projects. The ink transfer is very good, the colors are vibrant and defined, and it dries quickly. It has helped me achieve clean and professional results, even as a beginner. Without a doubt, it's a reliable, high-quality paper for sublimation.
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Reviewed in the United States on February 15, 2026