Alpine MRV-F302 amplifier problem

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=36572
Printed Date: May 16, 2025 at 2:18 AM

Topic: Alpine MRV-F302 amplifier problem

Posted By: jonbth
Subject: Alpine MRV-F302 amplifier problem
Date Posted: August 01, 2004 at 6:43 PM

I have a Blaupunkt Las Vegas reciever and infinity reference component speakers which work great. I bought an Alpine MRV-F302 amplifier off Ebay that was still factory sealed.

The problem I'm having is after hooking up the amplifier I'm barely getting any sound out the speakers. I checked and double checked the connections and checked voltage and it's 12+ volts at the power and amp turn-on terminals. The ground should be good although I don't really know how to check it.

I tried everything I know.

Please help!!!

Replies:

Posted By: nychris2004
Date Posted: August 01, 2004 at 6:50 PM

how do you have the speakers hooked cup to the channels?....u might have them hooked up wrong.

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Posted By: jonbth
Date Posted: August 01, 2004 at 6:53 PM

nychris2004 wrote:

how do you have the speakers hooked cup to the channels?....u might have them hooked up wrong.

I'm pretty sure I have the speakers hooled up right. I'm using channels 1 and 2 and have them wired to my crossovers. I only have one set of components in my truck. I tried bridging the amp also but still not much sound.

Posted By: customsuburb
Date Posted: August 01, 2004 at 7:14 PM

Did you set the gain control correctly? Are the speakers wired in phase? Do you have the filter set on high pass or low pass?

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Posted By: jonbth
Date Posted: August 01, 2004 at 7:38 PM

I feel like an idiot. I had the reciever fader set all the way to the front. I readjusted it and it fixed the problem. Thanks for all the replies.