About: Rockford Fosgate P400X4 Punch 400 Watt 4-Channel Amplifier

The Punch P400X4 is a 4-channel amplifier producing 100 Watts into all four channels at 2-Ohm. The P400X4 is perfect for a 4-way full-range system or a 3-way system having a front stage with subwoofers on the rear channels.

The P400X4 is perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Simply drop a pair of component speakers on the front channels and subs on the rear and BOOM - you got "The PUNCH." With its flexible design, the P400X4 is an excellent amplifier choice for virtually any vehicle.

Specifications:

• 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
• Dimension (W x H x D): 11-1/8" x 2-7/16" x 8-13/16"
• warranty: 1 year