Slightly OT: Car audio input levels?

[natman]

I have an A/D/S Powerplate 80 amp. It has a button marked "high gain / low gain" and RCA jacks. Anyone know what voltages match the two settings?

I also would like to know the input voltage level for a JVC KS-A150 amp.

Any other info that would help me buy a HU that would match either of these amps would be appreciated. Thanks

[tims]

Buy any HU you want. Just get a Multimeter and set your gains to match the amplifiers rated output. For example If the PP80 is 40Watts a channel(4ohms) and you want to run 4 ohm speakers on it just turn the gain(s) until your Multimeter reads about 12.5Volts(AC). Make sure whatever head unit you get is set at 3/4 volume and play a 1Khz test tone while taking the voltage readings.

> I have an A/D/S Powerplate 80 amp. It has a
> button marked "high gain / low
> gain" and RCA jacks. Anyone know what
> voltages match the two settings?

> I also would like to know the input voltage
> level for a JVC KS-A150 amp.

> Any other info that would help me buy a HU
> that would match either of these amps would
> be appreciated. Thanks

[natman]

> Buy any HU you want. Just get a Multimeter
> and set your gains to match the amplifiers
> rated output. For example If the PP80 is
> 40Watts a channel(4ohms) and you want to run
> 4 ohm speakers on it just turn the gain(s)
> until your Multimeter reads about
> 12.5Volts(AC). Make sure whatever head unit
> you get is set at 3/4 volume and play a 1Khz
> test tone while taking the voltage readings.

Gains? What gains? The amp has a button with two positions - high and low. I appreciate your response, but I am afraid I don't understand it. Could you please elaborate a bit?