Rockford Fosgate 501X Amplifiers


The Rockford Fosgate Punch 501X slams your speakers with a one-two combination, so they deliver the uncompromising musical performance you demand.

  • 65 watts RMS x 4 at 4 ohms
  • 125 watts RMS x 4 at 2 ohms
  • 250 watts RMS x 2 at 4 ohms in bridged mode
  • 2-, 3-, or 4-channel output
  • 4-ohm stable in bridged mode
  • Tri-Way capable
  • requires 8-gauge power and ground leads wiring and hardware not included with amplifier
  • front and rear switchable high-pass (120 Hz, 12 dB/octave) and low-pass (80 Hz, 12 dB/octave) crossovers
  • 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
  • Transana circuitry keeps preamp voltages low and signal paths simple for outstanding audio quality
  • NOMAD advanced protection circuitry for "intelligent" shutdown protection
  • speaker- and preamp-level inputs
  • preamp outputs
  • 12-1/16"W x 2-3/8"H x 9-7/8"D

User Reviews (1)

Showing 1-1 of 1  
blueklister   [Sep 23, 2004]

Case protects cables under front seat


They blow up.

Second Rockford Fosgate amp I've had -- the first was warrantied about 2 months after I bought it. This one went out just after the two year warranty, wouldn't you know. I'm getting something with a longer warranty. I'm just not that hard on equipment and it should last a lot longer than two years.

Similar Products Used: Rockford Fosgate 300s, 400x
Showing 1-1 of 1  

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