Rockford Fosgate P400X1 400 Watt Mono Amplifier

The Punch P400X1 mono amplifier is specifically designed for medium to high-powered subwoofer applications. It's variable crossover and built-in Punch EQ allow for precise tuning of Bass frequencies, and its 2-Ohm mono stability is perfect for running up to four 4-Ohm DVC subwoofers. You can also add-on the PLC2 Remote Punch Level Control to control equalization from under the dash or center console. Sized to fit under any seat, you can hide this amplifier and have them guessing where the amp is.

• High level input capable with Auto Turn-On circuit
• RCA pass-thru outputs
• Features C.L.E.A.N. Set-up
• Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator)
• 12dB/octave Butterworth crossover
• On-board Punch EQ with +18dB boost @ 45Hz.
• Muted turn on
• Stealth top mounted control panel
• Cast aluminum heatsink
• Short circuit protection
• Over current protection
• 1 Year Standard Warranty 
• Number of Channels: 1
• Rated Power(RMS Continuous Power): 250 Watts x 1 @ 4-Ohm
• 400 Watts x 1 @ 2-Ohm
• Total Power (Sum of Rated Power): 400 Watts RMS
• Efficiency (average): 73% @ 4-Ohm
• Crossover Controls: High-Pass (HP): 50Hz-250Hz 12dB/octave Butterworth
• Low-Pass (LP): 50-250Hz 12dB/octave Butterworth
• Tone Controls:     Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or
• Punch EQ2 Treble: 0dB to +12dB @ 12.5kHz
• Function depends upon LP/AP/HP switch position
• Signal Input: Hi/Low level: 1 RCA pair
• Signal Output: Low Level: 1 RCA Pair
• Power Input Connector: Captive C-Clamp
• Power Wire Gauge: 8 AWG to 4 AWG
• Speaker Output Connector: Captive C-Clamp
• Speaker Wire Gauge: 8 AWG to 18 AWG
• Heat Sink Type: Cast aluminium
• Cooling: Convection
• Remote Controls: Optional Punch Level Control (PLC2) Ready 
• Visual Indicators: Power/Protect/Thermal LED
• Circuit Topology Class: Class-A/B
• Frequency Response: 20Hz to 20kHz +/- 1.0dB
• Dimensions (HxWxL): 2.38 x 7.76 x 9.86 (in)
• 6.05 x 19.71 x 25.04 (cm)