Rockford Fosgate Punch 800.4

Built-in high-pass/low-pass crossovers let you tweak your tunes to work with your vehicle's natural acoustics. Punch Bass provides up to an awesome 18 dB of boost at 45 Hz for all the low-frequency slam you'd ever want.

• 200W RMS x 4 at 2 ohm
• 400W RMS x 2 in bridged mode
• 2-, 3-, 4-channel or Tri-Way output
• Front and rear high-pass/low-pass crossovers (variable 50-210 Hz, 12 dB/octave)
• MOSFET power supply and output devices
• Maximum Efficiency Heat Sink Application (MEHSA) mounting technology increases the heat transfer from the MOSFET output devices to the heat sink, for higher power output, lower operating temperatures, and greater reliability
• TOPAZ — noise-killing differential inputs that eliminate 80% of ground loop noise
• Trans•ana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality
• NOMAD — advanced protection circuitry for "intelligent" shutdown protection
• Speaker-level inputs
• preamp outputs
• Punch Bass boosts bass up to 18 dB at 45 Hz
• 4-2 switch
• 60-amp fuse and fuse holder required
• Dimensions: 18-7/16"W (14-7/8" without endcaps) x 2-7/16"H x 9-7/8"D

• 1-year SonicElectronix.com warranty