Rockford Fosgate Punch 4 Channel Car Amplifier 50 Watt RMS x 4 (P400X4)

Easy to set for optimum performance

Once again, Rockford Fosgate steps away from the crowd with their C.L.E.A.N. technology (Calibrated Level Eliminates Audible Noise) — a setup system that ensures your music will sound as clean and powerful as possible. It works like this: play the setup tone on the included test CD, adjust the receiver volume until a red clip light on the amp goes out, then turn the amp gain up until a blue light comes on. It's that simple — your amplifier is now set to match your receiver's output. When your receiver reaches maximum clean volume, you'll get maximum clean power from your Punch amp. At quiet listening levels, you'll hear less background noise and more of your music.

Keeps an eye on things while playing

If that blue light turns solid red while you're playing music, the amp's telling you that your source is distorting and you should turn it down, or risk damage to your gear. The amp's built-in computer keeps tabs on the output current, ensuring that plunging speaker impedances (they change during play) or even a short circuit won't hurt anything.

Maintaining coolness raises efficiency and lowers distortion

Rockford Fosgate's Dynamic Thermal Management system uses forced air to dissipate heat evenly across the amp and out through the high-mass heatsink, efficiently drawing heat away from vital internal parts. Their proprietary MEHSA cooling process maximizes the heat transfer from the MOSFET devices to the heatsink, allowing the heat to escape more readily, so the transistors stay cooler and work better.

Product Highlights:

• -4-channel car amplifier
• -50 watts RMS x 4 at 4 ohms (100 watts RMS x 4 at 2 ohms)
• -200 watts RMS x 2 bridged at 4 ohms (4-ohm stable in bridged mode)
• -CEA-2006 compliant

Features:

• -variable high- and low-pass filter filter (50-250 Hz, 12 dB/octave)
• -variable PEQ2 bass/treble boost (0-18 dB at 45 Hz and 0-14 dB at 12.5K Hz)
• -C.L.E.A.N. gain setup system includes test tone CD
• -test tones also available as MP3 download from Amazon On Demand, Rhapsody, Google Play, and Spotify, labeled "3sixty.3 setup disc" (Punch amps and the 3sixty.3 use the same test tone tracks for setup)
• -Class-AB amplifier design
• -frequency response: 20-20K Hz
• -Dynamic Thermal Management and MEHSA MOSFET cooling systems
• -MOSFET power and output stages
• -preamp and speaker-level inputs (speaker wire to RCA adapter required for speaker-level input)
• -signal-sensing turn-on with speaker-level inputs eliminate need for remote turn-on lead

More Info:

• -4-gauge power and ground leads and an 60-amp fuse recommended — wiring and hardware not included with amplifier
• -no onboard fuses — when installing multiple amps in a system, an additional 60-amp in-line fuse between the distribution block and the amplifier is recommended
• -11-1/8"W x 2-7/16"H x 8-13/16"D
• -warranty: 1 year

Features and Specs