MB Quart ONX1.1600D Review Specs, and Photos

I have had the MB Quart ONX1.1600D installed for a few months now so I thought I’d do a quick review of the amp. I will start by listing the specs of the amp.

MB Quart ONX1.1600D Specifications

  • ONYX Series Monoblock Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 550 watts x 1 chan.
    • 2 ohms: 1100 watts x 1 chan.
    • 1 ohm: 1600 watts x 1 chan.
  • CEA-2006 compliant amplifier
  • PWM (Pulse Width Modulated) MOSFET power supply
  • MB QR-2 Wired remote bass level control included
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +10 dB bass boost at 45 Hz)
  • Mono channel operation
  • Dual speaker terminals simplify the hookup of multiple speakers
  • Preamp RCA outputs to daisy chain multiple amps
  • 4-Way System Protection circuitry (DC, thermal, overload, and speaker short protection)
  • Piano black gloss finish with illuminated logo
  • Heavy duty aluminum alloy convection heatsink for superb heat dissipation
  • Silver-plated RCA level inputs
  • Silver-plated screw terminals
  • Input sensitivity:
    • Low level: 200mV-6V
  • Variable low-pass filter (30-250 Hz, 24 dB/octave)
  • Subsonic filter (24 dB at 15-35 Hz)
  • Damping factor: >200
  • Frequency response: 15-250 Hz
  • Dimensions: 14-7/8″L x 9″W x 2-1/2″H

For starters this amp is now discontinued but they are still out there on the market and certainly people will buy them used so here are my thoughts on the amp. It is an entry level amp, no two ways about it. The price per watt is very good though. Now, does it make a true 1,600 watts? I cannot say but I doubt it. I run the amp at 2 ohms powering 4 entry level 10’s and it beats them hard. So I am satisfied. I flex the windshield a noticeable amount.

As for the Bass Remote, this is not a BOOST. Let me make that clear, it is NOT a BASS BOOST knob. The remote is gain control knob. I had it all the way down thinking it was a boost but it is a gain control. You set your amp gains with it all the way up, well that is what I do. This way you can turn the bass down on certain songs. The knob doesn’t seem to go above the gain you set the amp at though. It doesn’t take over the gain control. It seems to lower from whatever the amp is set at. This is why I set the gain with it all the way up. Then you can go down from there, sometimes if you feel like a bit less bass it just gives you the ability to tone it back. I use it quite often.

The amp itself is very nice, clean, and simple. My only gripe is the terminals, the angle makes it a pain to get the wire in and out when the amp is mounted.  I tried it at .5 ohms for a test run and it played for a few minutes but shut down. If I had stronger electrical it might have gone longer. I wouldn’t do it long term but if you wanted to burp one at .5 ohm you’d probably be ok. It has a LPF and Subsonic filter built in, which are both adjustable. It also has bass boost built into the amp, if you want a little extra gain at 45 hertz.

As for price, I paid $170 for mine new. So I would pay no more than $100-130 used for a clean example with bass remote and cable.

You can check out some of my amp photos below. Any questions just ask.


Twin 70 amp fuses, 2 gauge inputs on power and ground.


Side panel, inputs and controls.


New, still with the plastic wrap on.


Tucked up next to the big 4th order box.


Here it is compared to an MB Quart FX1.400. ONX1.1600D is on the left of course.

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