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Discussion Starter · #1 ·
I've read a fair bit on here about the P38 stereo in all its guises. FYI I have the Alpine/HK setup with sub etc (not sure about the door amps though).
I've read that the amps need a drive impedance of around 70 Ohms, which is fine, but does anyone know what peak voltage it should be? I've seen the attenuator circuit but it doesn't mention voltage from what I can make out.

The reason I ask is that I've seen some head units with 60 Ohm pre-outs, but with 4V/5V or even 1V pk signal amplitude and I' dlike to know which would be best.


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