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Problem setting gain with dmm


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Posted

Do you have any filters on at the amp or head unit?

Try switching the front and rear RCAs around at the amp and see if the results are similar. Just make sure you mark them with a pen/tape.

DAT 4125------>RE XXX comps active

Eclipse cd7000

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Posted

Do you have any filters on at the amp or head unit?

Try switching the front and rear RCAs around at the amp and see if the results are similar. Just make sure you mark them with a pen/tape.

All filters are off.

Alpine PDX-V9


Morel Tempo 6


Alpine SBR-S8-4


Alpine CDE 149BT



Posted

Okay, rear stage gain is having the same problem. Both gains have to be set to 3 o clock to get 18v. :\

Alpine PDX-V9


Morel Tempo 6


Alpine SBR-S8-4


Alpine CDE 149BT



Posted

Does the AQ120 have a high/low switch on the bottom?

Alpine PDX-V9


Morel Tempo 6


Alpine SBR-S8-4


Alpine CDE 149BT



Posted

What's the problem? It doesn't matter where the gain pot is set when it's set correctly. If your head unit isn't sending a lot of preamp voltage then it's perfectly fine that the gain is set at three o clock.

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