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Hello everyone. 

What test tone should I use for my HU until I get distortion? 

I've set the HU with 0db test tones until i got distortion on rca , then I moved to amp speaker output and switched to -7.5 db test tone until I've got distortion.

Is this correct or I should also look for distortion on the HU with -7.5db tt

 

(I want to use -7.5 on my system )

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3 hours ago, m4n1akx said:

Hello everyone. 

What test tone should I use for my HU until I get distortion? 

I've set the HU with 0db test tones until i got distortion on rca , then I moved to amp speaker output and switched to -7.5 db test tone until I've got distortion.

Is this correct or I should also look for distortion on the HU with -7.5db tt

 

(I want to use -7.5 on my system )

You did it correctly

2011 Chevy Silverado under construction

My build log here. Check it out! 

 

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Yup this is the way.

All sources, signal processors, equalizers, etc etc get set to 0db. The only item that gets set with overlap is the amplifier - the last link in the chain.

The goal is to ensure a clean signal all the way through to the amp. If not, distortion / clipping is additive and you can end up with serious signal quality issues at the end of it.

e.g. you set -5db on the head unit. Then you set -5db again on a signal processor/preamp. Then you set -5db again on your amplifier. Well now you have a -15db overlap which is going to be prime for sounding like junk and taking out your drivers.

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