When you install a Power series amplifier, you get the biggest, beefiest power Rockford Fosgate has to offer. The 4-channel Power 851X amplifier incorporates innovative circuitry, precision controls, and MOSFET power to ensure that your music sounds absolutely pristine...and rocks hard!
Use the razor-sharp (24 dB per octave slope) variable front and rear crossovers to tailor the 851X for different tasks. Switch to high-pass mode to eliminate extreme low bass from full-range speakers or components. Or bridge the amp to 2-channel mode, activate the low-pass crossovers, and drive a pair of subwoofers with 425 watts per side!
The variable Punch Bass boost (up to 18 dB at 45 Hz) enhances low-frequency response from a slight bump to a ride-rockin' roar. A remote control is included so you can boost the thump right from the driver's seat. Convenient preamp outputs pass full-range signal to another amplifier in your system.
Details:
- 110 watts RMS x 4 at 4 ohms
- 215 watts RMS x 4 at 2 ohms
- 425 watts RMS x 2 in bridged mode at 4 ohms
- 2-, 3-, or 4-channel output
- 4-ohm stable in bridged mode
- Tri-way capable (Tri-Way crossover required)
- requires 4-gauge power and ground leads and a 60-amp fuse — wiring and hardware not included with amplifier
- MOSFET power supply and output devices
- front and rear 50-250 Hz high-pass/low-pass crossovers, 24 dB/octave slopes
- 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
- wired remote control included for fingertip control of Punch Bass (for 0-18 dB of bass boost at 45 Hz)
- preamp-level (RCA) inputs
- preamp (RCA) outputs
- 17-1/16"W x 2-3/8"H x 9-7/8"D
- 2-year warranty
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