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The Rockford PBR400X4D (4 pack) 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.
The Punch PBR400X4D is a full-range 4-channel amplifier that is small enough to fit in just about any application but packs a Punch with 400 Watts RMS of power! The BRT (Boosted Rail Technology) allows the PBR400X4D to be compact and efficient while providing power on demand. The BRT also has a variable hi-level DC offset turn-on circuit for easy installation into any OEM system.
Our integrated level setting technology called C.L.E.A.N (Calibrated Level Eliminates Audible Noise) helps to quickly setup the amp output controls by removing the guesswork & eliminating any speaker damaging distortion. This amp is ideal for UTVs, motorcycles, or compact mobile installs, not only because of its size, but because it doesn’t suck a lot of juice from your electrical system.
Full Range Class D design produces maximum power with minimal strain on the vehicle's electrical system
Versatile design can be used in either 2 or 4-channel configurations (50 watts x 4 at 4 ohms, 100 watts x 4 at 2 ohms or 200 watts x 2 at 4 ohms bridged)
Compact (1.5 x 4.25 x 6.75 inches) PBR400X4D is small enough to fit in just about any application but packs a punch with 400 watts RMS of power
Differential inputs with high-level auto turn-on feature
8 AWG power/ground connector
Remote-Out feature when using high-level inputs
CLEAN 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
Discrete surface mount technology
Compact design for stealth installations
CEA-2006 and CE compliant
Color: Black
Dimensions (L x W x H): 6.75 x 4.25 x 1.5 inches
Weight: 2.81 pounds
Manufacturer warranty: 1-year warranty
Quantity: 4
Outstanding Power Output: Delivers a combined 1600W RMS power (400W per amp), perfect for driving a full-range audio system with precision.
Efficient Class D Design: Ensures high power output with reduced heat, providing reliable and consistent performance.
Full-Range Flexibility: Ideal for powering mids, highs, or subwoofers, offering versatility for building a comprehensive sound system.
Compact and Durable: The small footprint design is paired with rugged construction and advanced cooling technology for long-lasting use in tight spaces.
Seamless Integration: Easily fits into space-constrained vehicles, allowing for a clean and professional installation.
Q: What is the Rockford Fosgate PBR400X4D (4 Pack)?
A: This bundle includes four 400W compact full-range 4-channel amplifiers, delivering powerful and efficient audio performance for multi-vehicle or advanced car stereo setups.
Q: What are the key features?
A: Each amplifier features Class-D technology for high efficiency, a compact design for easy installation, and 4-channel capability for powering multiple speakers or subwoofers.
Q: Is this bundle suitable for large or complex systems?
A: Yes, it’s ideal for powering multi-component setups, offering versatility and premium sound quality in a space-saving form factor.
Q: Why choose this 4-pack?
A: It’s a cost-effective solution for building robust, multi-system audio configurations while ensuring reliable, high-quality performance.














