Rockford Fosgate 550X amplifier

Model

550X

Brand

Rockford Fosgate

The Power series is a very well made amp and sounds excellent. I don’t have the end pieces, but nothing is wrong with it. It puts out some solid power. 65 watts RMS x 4 at 4 ohms 137.5 watts RMS x 4 at 2 ohms 275 watts RMS x 2 in bridged mode at 4 ohms 2-, 3-, 4-channel or Tri-Way output 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 4-gauge power and ground connectors : amplifier, preamp, hifi, vintage, Marantz, McIntosh, JBL, subwoofer, Ads, The Fisher, speakers, Harman Kardon, Luxman, turntable, vinyl, cartridge, Scott, Kef, AR, DCM, Denon, Hafler, Sony, Dual, Onkyo, Advent, dac, solid state, tube, Kenwood, SACD, Samsung, iPhone, MacBook, Concept, Bogen, Klipsch, Pioneer, Bose,AMC, KLH, Wilson, Focal, Technics, Sansui, Altec Lansing, PS Audio, class a, B&W, Klipsch, horns, Yamaha, Polk Audio, Audio Research, Pass Labs, Audioquest, Kimber, Cary, JL Labs, Naim, Magnepan, Wharfedale, Infinity, Dynaco, Rogers, Apogee, Thorens, Garrard, W6, W7