0 to 80hz sweep for gain setting using dmm

[ExplsvCookie257 10+ year member]

I had an idea that using a sweep of frequencies of that which your sub plays, is better to use for getting the correct voltage because all frequencies are there to affect the voltage instead of just 60hz. Would this be worth a try, or should I just use a lower hz 0db tone like 20?

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[Bassin Buick]

use 50 or 60

 

[ExplsvCookie257 10+ year member]

Why do we have to use 60? what would happen I use something lower