Where Should I Set the Input Level on my Amp?

[Jer510 10+ year member]

Where should I set the input level on my Quantum Audio 1000d amp? The preamp voltage on my head unit is 2V.

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[n2audio 5,000+ posts]

the amp's sensitivity range is .285v to 4.3v, so, without using a DMM, just set it somewhere near the middle. The closer it is to 4v while still giving you the output you're looking for the better. As you get closer to MAX you should start hearing some distortion at high volume.