Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.
Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.

Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

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Alpine MRX-M55 Subwoofer Amplifier

UPC: 793276011756 SKU: MRX-M55
Alpine MRX-M55 Subwoofer AmplifierAlpine MRX-M55 Subwoofer AmplifierAlpine MRX-M55 Subwoofer Amplifier
$399
$399$335.85
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  • Standard to Metro (4-10 biz days)
  • Express to Metro (1-4 biz days)
  • Standard to Non-metro (10-20 biz days)
  • Express to Non-metro (2-6 biz days)
  • Pickup (Same or next biz day)
  • Longer ETA applies to NT, WA, NZ & US locations.
  • The above time frames are estimates only. The actual delivery time is dependent on the shipping location, shipper's processing capacity and other unforeseeable factors i.e. natural disasters, accidents etc. We cannot be held responsible for any courier-related delivery delays.
This product is discontinued
  • Availability:Out of Stock
  • Model: Alpine MRX-M55
 Sold Out 
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X-Power Series Class-D Monoblock Car Amplifier


  • RMS Power Rating:
    • 4 ohms: 350 watts x 1 ch
    • 2 ohms: 550 watts x 1 ch
  • Max Power Output: 1100W
  • Class-D Amplification Circuit
  • STAR Board circuitry (minimizes internal noise & prevents interference)
  • Blue LED power indicators
  • Pulse width modulated (PWM) MOSFET Power supply
  • Thermal management control
  • Remote bass level input (Requires RUX-KNOB)
  • Tuned Bass EQ (0-12 dB bass boost at 50 Hz)
  • Heat sinks along with thermal processor monitors the amplifiers temp
  • CEA-2006 compliant amplifier
  • Continuously adjustable gain control
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Subsonic filter (5-30 Hz, 24dB/octave)
  • Adjustable low-pass filter (50-200Hz, 24 dB/octave)
  • Frequency response: 5-400 Hz

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