I've got a small Problem with my Sub making a fast pulsating bumping sounds every now and then.
I had this problem a couple times before, Then I reciently replaced my CD player and redid all wiring conections behind the head unit and EQ.
The bumping stopped for a while but just started again last night on my way to Largo.
The stereo plays fine 99.8 percent of the time with no negative feed back or unwanted noise, But now that this has started again...I'm starting to get worried I'm going to pop the sub or blow an Amp.
What could this problem possibly be? I need someone to point me in the right direction to fix this problem.
Any suggestions?

Thanks, -Jeff

 

I would start with the wires that go to the subwoofer amp and from the amp to the subwoofer. Basically, check everything that you haven't. It could also be your amplifer . But check the simple things first.

 

your rca cables or your amp is shorting

 

Thanks! I'll go tear the sub RCAs out today and replace them. I don't think it's the AMP itself...

Now that I think about it, Those RCAs are a couple years old and have powered a few different systems.

I'll keep everyone posted.

-Jeff

 

could it be ur ground ? maybe check that.

 

So far.....I guess not.
I replaced the RCA's coming from my EQ to my Amp for the Sub, Since that fix I haven't had it happen again.

I do have another question though, That’s Amp related;
Can a single channel on an Amp go in and out whenever it wants?
My highs on just my drivers side keep fading out, It seems to be when I'm on a long trip, Like more then 20 minutes of driving.
It may be coincidence but that’s when it seems to happen.
All my door highs are connected to a RF amp, The passenger side never fades but the left side seems to always be the culprit...
Any Ideas?

 

mine did that with gains too high.. sounds liek thermal fron the HU

 

have you checked your speakers maybe you have burned up the connector and/or it is lose and touching ground so im guessing your running a 2channel amp for your highs may i ask what brand?

 

Sure, The brand of amp is Rockford Fosgate, The speakers that keep fading out are running off of a component set and are also Rockford.
So the highs and mids are on and off at the same time, But thay are being run through a RF component box (can't remember the name of that piece at the moment...It's to early) Huh

 

crossover?

Well switch up your rcas front and back, and see if the sound follows, or if it stays in the drivers front...