|
1) Turn gain down on amp completely.
2) Turn volume up on headunit to about 90% max.
3) Turn gain up until you start to hear the speakers distort.
4) Turn volume down a notch or two.
5) Turn gain up a bit more until distortion.
Why do installers always turn gain down? It's because you want to use the full, usable output of the headunit, especially helpful when it's a high-volt output unit, which gives "cleaner" signal. Otherwise, there's no point in high-output, everyone can turn the volume up 1/4 and have the gain way up, overworking the gain stage of the amp.
If you want it done professionally, hook up an analog oscilloscope on each speaker-pair output of the amp, play a test tone of about 4-kHz sine wave repeatedly, turn volume up as above, then adjust gain until you see the high and low peaks of the waveforms start to clip, changing to a square wave. That's when you are oversaturating the transistors, and when to turn the gain down. If you have no idea what I just said, just follow steps 1 through 5.
__________________
1998 Camry LE V6 S/C
2006 RAV4 LTD V6 AWD
Last edited by Luc; 04-12-2004 at 07:34 PM.
|
