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Alpine X-Power Series Mono Power Amplifier - MRX-M50

Abt Model: MRXM50 | UPC Code: 793276301062
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Product Details

Alpine X-Power Series Mono Power Amplifier, Model MRXM50

Harnessing the technology found in their benchmark-setting PDX digital amplifiers, Alpine Electronics of America, Inc. introduces the new X-Power family of amplifiers. The four new amplifiers provide digital amplifier technology at a lower price point. Alpine offers a complete lineup of amplifiers, totaling twelve models plus one add-on power pack.

The X-Power amplifiers use Global Modulation digital technology based on Alpine’s PDX architecture, so they share many of the attributes that make the PDX amplifiers so popular. For the first time, the X-Power amplifiers bring these advanced digital technologies to price-friendly levels.

The MRX-M50 is remote bass knob capable, allowing consumers to adjust subwoofer level without having to access the amplifier itself (uses RUX-KNOB, sold separately). This model uses a variable 5-30Hz subsonic filter to optimize power or improve subwoofer reliability in ported enclosures. As well, the MRX-M50 has a bass EQ that allows a boost at 50Hz, making it ideal for adding punch to subwoofers in sealed or ported enclosures.


  • Small size, high efficiency – The X-Power amplifiers have a small footprint with 80% total efficiency
  • Clean output – The X-Power amplifiers offer the best performance in their class with wide bandwidth (5Hz – 45KHz), excellent signal-to-noise (greater than 90dB for mono models, at 1 watt), very low distortion (less than <0.04% THD+N for mono models) and extremely high damping factor (>1000 for mono models,)
  • Sound quality – X-Power amplifiers use Global Modulation Technology with Adaptive Feedback Control, whereas PDX amplifiers use Global Modulation Technology with discrete Active Error Correction.
  • Power management processor – The X-Power amplifiers incorporate an internal monitoring system that optimizes power output, to keep the music playing even under extreme heat and load conditions.
  • Installation flexibility – Their small size and versatile controls allow the X-Power amplifiers to work with aftermarket or OEM systems.


  • 300W RMS x 1 [4 ohm @ 14.4V = 0.04% THD+N]
  • 500W RMS x 1 [2 ohm @ 14.4V = 0.06% THD+N]
  • S/N: 90dB @ 1W/4 ohm

Approximate Weight:

  • Shipping: 7 lbs
Key Features
500 Watts Max Power Output/ Global Modulation Technology With Adaptive Feedback Control/ Power Management Processor/ Small Size High Efficiency/ Clean Output/ Remote Bass Knob Capable/ Black Finish
More reasons to buy the Alpine MRX-M50 from Abt Electronics
  • Abt.com is an authorized dealer (Learn More).
  • The Alpine MRX-M50 is Brand New.
  • The Alpine MRX-M50 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
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