crossover HPF questions

Well I ran into some problems with my system. The phasing seem all off. the DLS sounded really crappy. I was sure that everything was hooked right. Early this morning (5am) I rechecked my wiring and I was right, everything was hooked up right.

I have my Nine.4 bridged BUT I accidentally set it for 2 channel operation instead of 4 channel. BANG! everything sounded pretty good again when a flipped the switch. I sounded pretty good cuz I still don't like the midbass it's putting out. Another thing is that the right speakers are a lot louder than my left. I now have to recheck the gain settings and the RCA's to see what's going on with that.

Question, what should I set the HPF to on the NINe.4? the midbass is pretty weak right now and I need to improve it. the bass from the subs is really overbearing and the cutoff points are really obvious. In short the blending is real bad!

Suggestions???

 

but do they give good midbass at 120hz? I don't want to have a big gap between my sub and midbass so what should the lowpass be set to for the subs?

 

but having the sub crossover point between 40-70 then having the components crossed over at 120 would leave a huge gap, wouldn't it?

 

the nine.1 does have a subsonic. it's set right now at about 30hz.

 

so i should set the nine.4 at about 100 to 120hz and I should be ok then?

 

Thanks electro! you're a big help!!! I went down and made the adjustments. Sounds great now!!! I'll finally make some videos of the tomorrow.

I'm not using any bass boost or any of that kind of crap.

 

everything was set at zero when I did the adjustments on the amp. my three.1 doesn't have a 63hz adjustment. I think it's only like 125hz. on my HU i have 80, 130 and like 150hz and it's a pain in the butt to go through the menu for that.

 

another question. I was messing around with my stereo and it has speaker levels that i can adjust individually from 0db to +12db. I also have speaker distance that can be adjusted as well.

what should i do with these settings?

 

I have a JVC KD-AVX2. How did you go about doing that? just by ear?

And yet another question about grounding. I'm having a hard time finding another ground for my head unit cuz everything near the HU seems to be plastic. I disconnected the antenna and I got a real bad buzzing, humming, whine (whatever you want to call it) and when I connect the antenna back in it gets faint again. That is a ground problem, right? do you think it's a head unit ground problem or an amp ground problem. My ground for my amp looks very good, it's about 6 inches away from the amp. I have no idea where to ground my HU now. any suggestions on where to find a point?

 

well, I was able to reground the headunit last night. I didn't have a long enough run in 8 gauge though so I just used speaker wire.lol It did however make a big difference but there is still a little hiss but now more alternator whine. I really want to get rid of the hiss though. the ground that I made for the HU is kinda far (4 to 5 ft.), I counldn't find a good grounding point close to the stereo so i had to do it near the parking brake.

Here's the deal now, I was think the hiss may be caused by the crossover (left side) is right near the power wire. Could that be the reason? I didn't have time to mess with it and reposition the crossover. Do you think that could be it?

 

That could be it but I don't think my gain is set too high. I should play around with it some more though. I seriously don't think i'm getting even an 8v signal to my amps. maybe the guy who owned it before me adjusted the settings. I gotta take a look at it. Damn, that means i gotta pull out the head unit and three.1 again!! oh well.

Pedro, i also read about people using a common ground for all their amps and head unit so you won't get a ground loop. Right now, i have separate grounds for the nine.1, nine.4 and headunit. Is that ok?