Tuning a 4 chan, HIGH PASS

[JuicyJeff 10+ year member]

Ok so after 60 posts on my old thread i learned all the way up to tuning it and everything.

Played a 1hz test tone, tuning 4 6X8s that have rms at 75 and the amp puts out 75 X4 and 4 ohms so that is all good.

I turned the amp to high pass, hpf at around 100. Played the 1hz test tone w/ all speakers unhooked from the amp.

I tested all the ohms on the speakers. Had about a 3.8 average and the dmm did .3 ohm resistance, so i did 3.5 X 75, then the sq rt of that which was 16.202 So i tuned chan 1, ended up with gain all the way up and treble about half, giving 16.303 volts which isn't bad. Then i go to channel 2 and it tells me im getting 18.1 volts or something like that.. Wtf?

So i go do channel 3, same thing, get 16.25 something, and then 17 something on channel 4. Why does it do this.

Should i tune it in bridged mode and just double the 16.2 so i get 32.4 and tune them together or what? I'm Stumped. I have my front speakers on channel one and two and my rears on 3 and 4 if that makes a difference. Any help would be appreciated. ASAP

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[JuicyJeff 10+ year member]

ttt

 

[JuicyJeff 10+ year member]

TTT need help asap

 

[JuicyJeff 10+ year member]

anyone?

 

[JuicyJeff 10+ year member]

still noone

 

[PaulD 10+ year member]

the channels are not always balanced ....

 

[stuckinok 5,000+ posts]

I think you are making it way too complicated. I mean as long as you are kinda close to where you wanna be youll be fine. I mean it's really not going to make that much of a difference. I keep all my gains at a near minimum so I dont even mess with all that.

 

[JuicyJeff 10+ year member]

well its like the whole formula thing that would give me the max volume i can play at X volts getting the full 75 rms. If one is at 18 and one is at 16.2 then one channel is getting the full 75 and the other one would be clipping? At max volume i mean