Christmas cut off: The Christmas delivery cut-off date has passed. Delivery before Christmas is not guaranteed. For the best chance of receiving your order in time, please select Express shipping.
Please be advised that our website will undergo maintenance at 5:00 PM. We expect to be back online by 7:00 PM. During this time, the website may not function at full capacity.
Our last trading day before the holidays is 20th December, and we will reopen on 13th January.
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Christmas cut off: The Christmas delivery cut-off date has passed. Delivery before Christmas is not guaranteed. For the best chance of receiving your order in time, please select Express shipping.

Please be advised that our website will undergo maintenance at 5:00 PM. We expect to be back online by 7:00 PM. During this time, the website may not function at full capacity.

Our last trading day before the holidays is 20th December, and we will reopen on 13th January.

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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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Full Australian Warranty
  • Express to Metro (1-3 biz days)
  • Standard to Metro (2-6 biz days)
  • Express to Non-metro (2-6 biz days)
  • Standard to Non-metro (5-20 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
  • Out of Stock
  • Model: Alpine MRX-M55
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Visit us at 3/229 Robinsons Road, Ravenhall, VIC
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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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