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Posted: Wed May 11, 2005 12:22 pm
by Fishy
On the deck the bass is set at -8 level and it gives the mids a sound I hate.
That may be your problem. If your turning down the bass(as in separate bass/treble tone controls) in order to keep some of the lows out of your mids you're also robbing your subs of these lows as well. If you've got dedicated subwoofer outs and you're turning them down -8dB thats a different story, but that should have no affect on your mids at all.
I'd recommend turning the gain all the way down on the amp, setting the amp's lowpass as close as you can get to 80 Hz and if the amp has bass boost set that flat(0dB). Now set everything on your h/u, and I mean everything, flat. Defeat all crossovers and set any bass boost, bass/treble tone controls and any parametric or graphic EQ's to 0dB. Now put in a moderately loud CD, turn your volume 2/3rds of the way up and gradually turn the gain up on the amp til it sounds good . If you start getting some distortion back off the gains a bit.
You ALWAYS want everything possible set flat when setting the gains on an amp or in your case debunking a problem system. I don't know how you're set for mids and highs, but if you're running them off a h/u which doesn't have a highpass filter, then a pair of bass blockers would be a much better method of keeping the low stuff out of them.
-Fishy
Posted: Wed May 11, 2005 12:42 pm
by Fishy
If you could list the rest of your equipment(h/u, mids, mid amp if you have one, etc) that would be helpful as well.
I apologize if I'm asking stupid questions or making suggestions you've already tried, but like Kiki said something is wrotten in Denmark. If you don't trust the shop you bought the stuff from to fix it we need to figure out whats going on here.
Oh another thing, your CompVR is a dual 4 ohm driver correct? If its a dual 2 ohm sub and the voice coils are wired in parallel for a 1 ohm load that could explain a lot as well.
-Fishy
Posted: Wed May 11, 2005 1:03 pm
by NorthQuad
Fishy, yes I've tried to do just that with my amp. I turned the bass boost down along with the gain and set the frequency at 75, then I cranked the deck until it just started to distort with the bass down on the deck. I then turn up the gain on the amp but I can't turn it up very much without the sub trying to slap. I've turned the bass down on the deck because if I don't I can't listen to the mid's and tweets loud without the sub again trying to fry. The sub just simply seems to suck, I want the lyrics to scream and the sub to pound but the sub just can't take it. That's why I am very lost as to why the sub doesn't pound. All the reviews say that they love it but It seems that for some stupid reason mine just slaps when it's time to produce. Would you personaly hook a 400 Rms sub up to a 600 Rms amp? Then have to turn the amp way down because your scared to blow the sub and not get much kick out of it because if you want your mirror to bounce you just have to accept that your sub can't take the extra juice. I don't know, if you could just hear it you'd think it was a junk stereo. It shouldn't be this hard.
Posted: Wed May 11, 2005 1:04 pm
by GlassWolf
yup 120Hz high pass filters on the mids, and bass level and sub level settings on head unit at zero. if the box is sealed for a CVR 12" it should be maybe 1.5cu ft exterior at most. 15x15x17" is ~1.5cu ft after the driver displacement. that should be ok if your measurements are accurate, using 3/4" MDF as enclosure material.
Did you try reversing the neg and pos speaker wires at the sub box? this will reverse polarity which may solve the problem, too.
Posted: Wed May 11, 2005 1:22 pm
by NorthQuad
Hey Fishy, no question is a dumb question because I am no where near a pro at this stuff and I need all the help I can get. I either need to fix this or prove that this guy is a dick head and he just isn't hooking the correct equiptment up together. The deck is a Panasonic CQ-DFX983U, the amp is a Kicker KX 600.1, the sub is a 12" Comp VR in a sealed box but I'm not sure if it's 2 or 4 ohm because he didn't give me the boxes or right it on the receipt and I have some Kicker K57 5X7's for door speakers.
Posted: Wed May 11, 2005 1:30 pm
by NorthQuad
Kiki, I haven't tried to reverse the wires on the sub box, I didn't even know that would do anything. I will turn all settings to zero also and try. I'm hopeing it will work but I'm really discouraged at this point. I have a bad feeling it will do the same thing.
Posted: Wed May 11, 2005 1:34 pm
by sinister audio
anyone who somewhat calls themselfs an audio installer should be able to make that thing pound like crazy, great deck, great amp, alright sub. id probaly check all the wires and mainly the rca's i think something might be fishy there.
Posted: Wed May 11, 2005 2:11 pm
by lotas
yeah where did he mount the amp? are all the wires at the amp connected well? is it grounded correctly?
Posted: Wed May 11, 2005 2:26 pm
by NorthQuad
lotas, the amp is mounted very well behind on the back of the folding down rear seat. All the wires and RCA cables are correctly hooked up, the ground is hooked up solid.
Posted: Wed May 11, 2005 2:36 pm
by NorthQuad
I'm trying to post a pick but I don't know how any suggestions. :help: