hi everybody, i want to set my gain on my amp (JL 300/4) using dmm, im a
little bit confuse on the high (800mV-8V) and low(200mV-2V) switch
where will i set the switch if my hu is have 4volts pre-out. tia.

The JL Audio site has an flash tutorial on setting gains using a dmm. There is also a pdf sheet with the same info.

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