pioneer avic z2 subwoofer output issues
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114842
Printed Date: May 21, 2024 at 7:57 PM
Topic: pioneer avic z2 subwoofer output issues
Posted By: imnottrippin
Subject: pioneer avic z2 subwoofer output issues
Date Posted: July 04, 2009 at 2:35 AM
when i turn my subs off at the deck, i am still getting a signal to my sub amp. it is barely audible and it isnt loud. it sounds kinda like when 2 subs are wired wrong and they cancel each other out. what do i need to do? could it somehow be my 360a2 since its been modified?
the equipment is
pioneer avic-z2
fosgate 360a2(modified) bridged to 2 ohm 850rms (subs)
fosgate 400s (mids/highs)
2 fosgate p2 12's in high spl vented enclosure tuned @ 35hz
fosgate power components
2 stinger sp800 batts
Replies:
Posted By: i am an idiot
Date Posted: July 04, 2009 at 6:22 AM
Does it have horrible engine noise? Does it make a pop when you turn the volume from 0 to 1 and or from 1 to 0? Have you tried turning the gains down on the sub amp to see if you can make the noise go away?
Posted By: imnottrippin
Date Posted: July 04, 2009 at 9:03 AM
no pops or engine noise, i have my rca's grounded and all my wiring is done right. seperate power/ground for the deck, very good grounds for the amps.
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i say stupid stuff all the time, this is nothing new.
Posted By: imnottrippin
Date Posted: July 04, 2009 at 9:07 AM
no i haven't tried to adjust the gains. i figured the signal would be there regardless of gain settings.
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i say stupid stuff all the time, this is nothing new.
Posted By: rtsv_dancro
Date Posted: July 04, 2009 at 9:11 AM
when you say weak/bad signal, do you mean after the amp has processed it, or have you tested the signal before it gets to the amp?
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"It is impossible to defeat an ignorant man in argument."
- William Gibbs McAdoo
Posted By: imnottrippin
Date Posted: July 04, 2009 at 10:36 AM
yeah after the amp. my deck (i guess) is still sending signal with the sub control turned off. i will switch my rcas from sub to rear and change my rear outputs to low pass and see what that does i guess. i was just hoping my 2000 dollar head unit wasn't f'n up
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i say stupid stuff all the time, this is nothing new.
Posted By: rtsv_dancro
Date Posted: July 05, 2009 at 10:06 AM
can't say i blame ya there. but, if all goes well with the signal from the head unit, your modified amp seems to be the issue, which may not be any better news for ya.
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"It is impossible to defeat an ignorant man in argument."
- William Gibbs McAdoo
Posted By: i am an idiot
Date Posted: July 05, 2009 at 10:35 AM
imnottrippin wrote:
i have my rca's grounded .
Did you ground them at the radio or at the amplifier? If you did it at the amplifier, you created a ground loop.
Posted By: imnottrippin
Date Posted: July 05, 2009 at 10:53 AM
grounded to the deck. soldered even. i'll mess with it this week and post the results. thanks
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i say stupid stuff all the time, this is nothing new.
Posted By: imnottrippin
Date Posted: July 10, 2009 at 8:16 PM
well, i unhooked the fosgate sub amp and hooked up my kicker zr1000 and im still having the same issue. my sub out still seems to work just fine at all other settings besides off. anyone have any suggestions about what exactly could be wrong? i feel like i just found out my dog has cancer or something. weak...
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i say stupid stuff all the time, this is nothing new.
Posted By: rtsv_dancro
Date Posted: July 10, 2009 at 10:41 PM
just for grins, have you tried hooking up a different sub(s)? or just one of 'em?
its either (a) a prob in the subs or sub wiring or (b) the signal that "seems" to be good, really isn't.
heck, you may even try changing your rca cables...though that's a stretch. but, i have seen defective rca's, even though they usually just don't work at all or have some sort of short in 'em.
i'd say the above a and b options are more likely.
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"It is impossible to defeat an ignorant man in argument."
- William Gibbs McAdoo
Posted By: imnottrippin
Date Posted: July 11, 2009 at 1:47 AM
i haven't tried hooking up just one sub yet. they are wired inside the box and i sealed my subs to the box with loctite construction adhesive. i'll borrow a sub and see but, im thinking its the deck itself. its very likely that the amp fedback to the deck somehow. sure was funny hitting 146db at car toys with a 360a2 though. dude looked under my seats and in the spare tire well thinking i had a cheater amp hidden.
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i say stupid stuff all the time, this is nothing new.
Posted By: rtsv_dancro
Date Posted: July 11, 2009 at 11:01 AM
yeah, i'd probably be looking for the same thing. thats pretty amazing!
when ya borrow the sub, lemme know how it works out, and, before replacing the deck either have the signal tested so you can eliminate the word "seems" like its working and move on to it is or isn't working. don't forget to try new rca's if the signal isn't good!
lemme know what you find out
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"It is impossible to defeat an ignorant man in argument."
- William Gibbs McAdoo
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