Checking Output Voltage
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=63151
Printed Date: June 12, 2024 at 1:26 PM
Topic: Checking Output Voltage
Posted By: action1978
Subject: Checking Output Voltage
Date Posted: September 23, 2005 at 1:37 PM
Can someone please explain to me how to check the output voltage of my head unit. I have a DMM but I'm not sure where to use it. Also, do I need to be playing loud music or a test CD when I measure it? Thanks for the help.
Replies:
Posted By: jstruckman
Date Posted: September 23, 2005 at 4:29 PM
Use a test CD that plays test tones. Most people use a 1K test tone. Turn off all filters and EQ on the head unit. Set your DMM to AC voltage, take the positive probe and touch the center pin of the RCA output, take the negative probe and touch the outside shield of the RCA output. Start turning up your radio to see max output voltage. Remember, this maybe be a clipped signal, which means you can't actually feed that much voltage into an amplifier with it not being a clean signal.
Jazzy
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