Subwoofer squeals, any ideas why?

hobbiteater · Post by **hobbiteater** » Thu Sep 09, 2004 5:41 pm

Well, I built an under the seat sub box and everything was working fine, then a few minutes into testing everything out, the sub started to sqeal. You can barely hear it while the music is playing, but in between songs you can really hear the feedback coming from it. It is not a squealing sound from the sub thumping, it is actually feedback noise. Any ideas why this is happening or how I can trouble shoot it? Thanks

Sub-Vibe-R · Post by **Sub-Vibe-R** » Fri Sep 10, 2004 12:05 am

It could be a bad ground on your amp.Or very poor RCA wire between the HU and the amp. Check your wires.

ebslopp · Post by **ebslopp** » Fri Sep 10, 2004 12:22 am

Quote, originally posted by Sub-Vibe-R Â»It could be a bad ground on your amp.Or very poor RCA wire between the HU and the amp. Check your wires.My thoughts exactly! Also you may need to get a ground loop isolator.

hobbiteater · Post by **hobbiteater** » Fri Sep 10, 2004 12:31 am

A ground loop isolator? Pardon my n00bness, what is that? Also, I have noticed that the feedback changes sometimes when the car idles more or when I apply the gas while driving. Could this still be a grounding wire issue or could it be a problem with the REM wire maybe?

nismo · Post by **nismo** » Fri Sep 10, 2004 12:39 am

No, this is definitely a case of bad ground. You may want to reground your amp. Inder Singh

cdFxer · Post by **cdFxer** » Fri Sep 10, 2004 3:15 pm

Like they said above check the grounding and try a ground isolator. If those dont do the trick, try checking your B+ supply (+12V from your battery) for looseness or inadequate wire gauge. Rare that this is a problem but I have seen it before.....

hobbiteater · Post by **hobbiteater** » Sat Sep 11, 2004 11:49 am

Ok I fixed it. The ground wasn't in the best spot, but the crossover switch was set too high on my amp, as was the gain. Here is the finished box. I know the carpeting job is shabby, but it sounds good.

theimportscene · Post by **theimportscene** » Sun Sep 12, 2004 7:40 am

thats sweet... i always wondered what a sub would feel like under my (removed)... hows she sound?

hobbiteater · Post by **hobbiteater** » Mon Sep 13, 2004 6:26 am

It sounds very good I think. The bass is not real deep since it is only a 10", but has a nice tight sound.

cspmeinkc · Post by **cspmeinkc** » Mon Sep 13, 2004 6:35 am

is it in a sealed box?you could have a air leak, i have had that before............

Subwoofer squeals, any ideas why?

Subwoofer squeals, any ideas why?

Re: Subwoofer squeals, any ideas why? (hobbiteater)

Re: Subwoofer squeals, any ideas why? (Sub-Vibe-R)

Re: (hobbiteater)

Re: (hobbiteater)