setting gain using a dmm

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=124523
Printed Date: May 14, 2025 at 1:37 PM

Topic: setting gain using a dmm

Posted By: newnick
Subject: setting gain using a dmm
Date Posted: November 18, 2010 at 4:15 AM

I'm planning on using a DMM to set the gains on a four channel amp using a test tone.

Is it safe to do this without the speakers hooked up? I'm concerned with turning the power up on the amp without a load on it. I've done alot of reading about this but haven't seen a answer to my question.

The other concern I had is, if I left all the speakers hooked up, and checked one channel at a time would the test tone at high volume damage the speakers?

Replies:

Posted By: 66sportfury
Date Posted: November 18, 2010 at 3:55 PM

you can have a load on the amp. but there's no need to. it will not damage the amp if you do or if you do not. the test tone shouldn't hurt the speaker no. unless you run the amp into a heavy clip at high power.

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ac delco am radio and sparkomatic 40 watt sound exploder

Posted By: newnick
Date Posted: November 18, 2010 at 6:05 PM

Thanks

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