Z3PR said:
No comments on my 4 channel amp ?? It's powering Infinity Kappa speakers. (note; both front and rear speaker are 2 ohm. So they sound much better powered off a amp then they did powered by the headunit). I've got the gains kind of turned down, but everything is still alittle louder then what the head unit could do. Louder at 10 now then what the head unit could do at 16.
Looks good.
Sounds like you might need a bit of help setting your amplifier gains correctly...? Here's a method described by a buddy of mine from s10forum.com:
1. first, unplug the RCA's to the amp
2. set the bass and treble on your HU to their flat setting, usually 0. if you have bass boost or anything similar on your HU, turn that off as well.
3. put in a CD that you have heard a few times. the better you know it, the easier it will be to detect any distortion.
4. turn up the volume on your HU until your speakers and/or subwoofers begin to distort. now turn down the volume little by little until ALL hints of distortion are gone.
5. power down and reconnect the rca's to the amp. turn the gain down to 0. if you have a bass boost module or controller, turn this up to max. this allows you to fiddle with the bass boost module or controller without worrying about clipping.
6. power up and turn the volume back to the level at which your speakers had quit distorting earlier. now turn the gain up on your amplifier until your speakers/subwoofer begin to distort. once the speakers/sub begins to distort, slowly turn it down again until there is no hint of distortion.
7. if your amp and sub/speakers are new, do NOT start pounding away immediately. give them a few days of moderate listening to allow them to break in.
The post can be viewed here:
http://www.s10forum.com/forum/showpost.php?p=2782293&postcount=25
Those steps assume you are running some speakers off the headunit's power (hence him saying to disconnect the RCA's). If all your speakers are amp'd, skip that step. The key is to get your headunit's volume to the right spot before adjusting the gains (what most ppl do wrong). Basically you are looking for your maximum point, so you want to adjust your h/u's volume to the point you wont ever go past. Usually about 80% of max volume on the h/u works well (if your h/u's volume max's at 35, go to about 30). Take note of this volume position, as this is the point you never want to adjust beyond in the future. Once the volume is set, start adjusting your gain knobs and listening for distortion as described above. Once you have that gain position, you probably should not really need to adjust it again (some people do and can, but I usually advise you leave your gain knobs alone once they are set).
Hope that helps.