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Alpine MRX-M55: main picture thumbnail Alpine MRX-M55: alternate picture thumbnail Alpine MRX-M55: alternate picture thumbnail Alpine MRX-M55: alternate picture thumbnail Alpine MRX-M55: alternate picture thumbnail

Alpine MRX-M55

550W RMS, Monoblock Class D X-Power Series Car Amplifier

  • 5.0

(1 review)

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Price Information

$329.95

–$80.00

$249.95

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Customer Testimonial

Very helpful response and have made a purchase accordingly. Many thanks!

- Priten from uk

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Product Features:

  • MRX Series Monoblock Car Amplifier
  • RMS Power Rating(14.4V):
    • 4 ohms: 350 watts x 1 chan.
    • 2 ohms: 550 watts x 1 chan.
  • MOSFET power supply
  • High efficiency digital circuit design
  • Remote bass level input (Alpine RUX-KNOB remote level control sold separately)
  • Variable Bass Boost (0 to +12 dB bass boost at 50 Hz)
  • Mono Channel operation
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Preamp RCA outputs to daisy chain multiple amps
  • 2-Way System Protection circuitry
  • Heavy duty heatsink for extreme heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Input sensitivity:
    • Low level: 0.2V-4V
    • High level: 0.5V-10V
  • Variable low-pass filter (50-400 Hz, 12 dB/octave)
  • Subsonic filter (5-30 Hz, 24dB/octave)
  • Damping factor: >1000
  • CEA-2006 compliant amplifier
  • Frequency response: 5-400 Hz
  • Dimensions: 9"L x 9-7/8"W x 2-1/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • 1-year SonicElectronix.com warranty

Product History:

Alpine MRX-M55 thumbnail
(newest, current model)
Alpine MRX-M50 thumbnail
(previous model, replaced by Alpine MRX-M55)
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms 350 watts x 1 channels
RMS Power @ 2 ohms 550 watts x 1 channels
Amplifier Specifications
Amplifier Class D
Number of Channels 1 - Mono
Total RMS Power Output 550 watts
Maximum Input Gauge Size 4 AWG
Minimum Impedance Unbridged 1.5 ohms
Minimum Impedance Bridged Not Bridgeable
THD at Rated RMS Power 0.1%
Speaker Level Inputs Yes
Preamp Outputs 1 pair
Built-in Crossover Low-pass (LP)
Low-Pass Crossover Frequency 50 - 400 Hz
Subsonic Filter 5 - 30 Hz
Signal-to-Noise Ratio 90 dB
Bass Boost 0 - 12 dB
Bass/Gain Remote Optional (Accessory required and sold separately)
Fan Cooled No
CEA-2006 Compliant Yes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
Customer Review Summary for Alpine MRX-M55
Average Customer Rating is 5.0 out of 5 stars:
  • 5.0
based on 1 Review
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Rating Distribution:
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what's this?
Average Attributes Rating:
Durability
  • 5.0
 5.0
Value
  • 5.0
 5.0
Features
  • 5.0
 5.0
Design
  • 5.0
 5.0
Usability
  • 5.0
 5.0
what's this?
Most Helpful Customer Reviews:
September 24, 2012 Awsome!
Review by
Andrew from APO, AE
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I have this pushing a type R in a vented box and this amp really does a great job. Stays cool delivers the power clean clear and crisp. The birth sheet on mine says 581 rms. Would recommend this to any alpine fan. Played it for two hours and it was not warm at all.
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Alpine MRX-M55 Alpine MRX-M55 $249.95

Product Summary

Manufacturer: Alpine
Model number: MRX-M55
Weight: 10.00 lbs
Internal SKU: mrxm55
Internal product ID: 45519