How to properly adjust a 4 channel amp?

Question

Hey, i'm trying to adjust my 4 channel Eclipse EA4000 amp to my car speakers, it puts out 75 watts per channel RMS at 4 ohms. My front speakrs are a Diamond Audio component set that can handle way more power, and my rear speakers are just some JVC 6x9s im using for rear fill that I think can handle about 60 watts rms or so. How should I go about adjusting the amp so it sounds good without clipping? It has 2 sets of 4 adjustment k***s each, one set for the fronts, the other for the rears. They say "Low pass 100" on the first and it goes between 50-500 Hz, The second says "Hi Pass", and it goes between 30-500 Hz, the third says "Bass Boost" and goes between 0-8 Db, and the other is "Input" and goes from 8-0.2 V. I can also adjust them to Hi or Low pass, im assuming I need Hi, right? I just want to have it sound good, and bass is not really needed through my speakers since I have a set of 12" Kicker cvrs, right? Or should there still be at least some? I just really need help tuning my amp to the right specs without destroying my whole audio system in the process. Sorry for the long read, and all help is very much appreciated.

Answer 1

The "input" or gain is the most important.

The purpose of the gain is to match the signal volts RMS coming from the source (CD player, etc.) to the input of the amp to prevent clipping (damage by over powering).

Here is a guide that will help you set the gain correctly http://www.datafilehost.com/download.php...

You'll need a multi-meter (AC voltmeter), Microsoft Excel and a way to burn an audio CD from an MP3.

If you don't have Excel, use this link http://www.box.net/shared/nkkw1dhk4g

You want the high Pass set to about 300 and leave the Bass Boost to 0.

See my site for more info http://spkrbox1.spaces.live.com

Answer 2

if you dont want bass use the high pass and just adjust your gain aquirding to your liking but as long as you have you subs on a seperate amp then have the 4ch on hp theres no need for bass going threw your car speakers