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Customer Reviews

MB Quart RA1-300.1

MB Quart RA1-300.1 Reference Series mono subwoofer amplifier — 325 watts RMS x 1 at 2 ohms

MFR # RA1-300.1

1.0 out of 5 stars
1 review
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MB Quart RA1-300.1

Moses from BELLEVUE on 11/17/2023

2006 BMW X5

Verified customer (What's this?)
Verified employee review (What's this?)

Installed it on my BMW E53 X5 with DSP and avin4 head unit. It's keeps turning off when I crank up the head unit volume up 45%, so annoying. Turning the ignition off/on turns it back on. I've done my due diligence thoroughly going over my install and I don't see anything wrong. I'm pairing it with MB Quart sub DS1-254. Wired to 8 ohms or 2 ohms. Still the amp shuts down. Confirmed the sub amp ohms as expected 2 or 8 ohms. Crutchfield is sending a replacement. Glad I bought from them - great customer experience! For that I'll give 3 starts instead of 1. Will update when I replace the amp.



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