RCA Voltage

[Pr1m3 10+ year member]

Hey, I'm trying to figure out what sort of voltage is running through my RCAs, to get an idea where to start setting my gain. My head unit has a 4v output, but that goes into my 4ch amp for my speakers. From the RCA out on my 4ch it goes to my Sub amp. Should I be able to use a DMM on the ground and positive of the RCA? If so, what will I be setting it at?

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[dman4486 5,000+ posts]

measure Volts AC between the center pin on the rca and the shielding while the volume is at max listening level and test tone is playing.

 

[dman4486 5,000+ posts]

and the last sentence....

setting what at?

 

[Pr1m3 10+ year member]

DMM, for some reason I think to myself, heh, I know how to use a DMM, then I try to use it and fail. Don't know why.

Does it matter what test tone, 50hz, 60hz?

 

[dman4486 5,000+ posts]

DMM, for some reason I think to myself, heh, I know how to use a DMM, then I try to use it and fail. Don't know why.
Does it matter what test tone, 50hz, 60hz?

whatever frequency is within the playing range.

if it is for a subwoofer amp, then 50 or 60 will work.....if it is for mids/highs, then use a higher tone

 

[Pr1m3 10+ year member]

Ok, thanks, appreciate it.