Sub-woofer High Pitch scream even with RCA cables unplugged! HELP!!

[camaroqqq]

The Probelm:

When my sub-woofer is plugged into my amplifier it just puts out a constant high pitch squeal/scream/whine/noise that happens even with the volume off. The noise will even happen when I unplug the RCA cable from the head unit to the amp. If the sub is plugged in to the amp, it will make this noise.

My Setup:

I have a head unit with 3 preamp outputs (front/rear/sub). The Amp is a PHOENIX GOLD XS 6600 I have a capacitor (not sure of size) and a single amp powering front/rear/sub. It is made to power front/rear/sub and the speakers work fine. The sub just spits out a constant squeal and no bass. Help me figure out the problem. Could it be a broken amp even tho the speakers work fine. Could there be a short or a grounding problem? Could the sub be blown? Or is it just a problem with capacitor or the wiring? Let me know if you guys have any idea. Thank you in advance!

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[Bettr n' Revrse 5,000+ posts]

What amp?

 

[thevic24 5,000+ posts]

What amp?

this and sounds like the sub channel may be toast.

 

[-01limited- 10+ year member]

I'd remove the capacitor to see because thats just one extra problem spot to trouble shoot. Next I'd look at a problem with your amp. More than likely I'm going with amp, but still remove the cap.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[camaroqqq]

So assuming it is the Amp, could just the sub part be screwed up? The speakers work fine. Is there a way to fix it or would I need to buy another amp to power the sub?

 

[Louisiana_CRX 5,000+ posts]

So you have a Pioneer deck //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[camaroqqq]

So you have a Pioneer deck //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

Yup. Pioneer deck. I will try to remove the cap and see if that was the problem. If not, somehow just the sub channel on my amp broke ? Kinda weird....

 

[CRXBMPN 5,000+ posts]

amp output = toast?

 

[tpmeredith 10+ year member]

The Probelm:
When my sub-woofer is plugged into my amplifier it just puts out a constant high pitch squeal/scream/whine/noise that happens even with the volume off. The noise will even happen when I unplug the RCA cable from the head unit to the amp. If the sub is plugged in to the amp, it will make this noise.

My Setup:

I have a head unit with 3 preamp outputs (front/rear/sub). The Amp is a PHOENIX GOLD XS 6600 I have a capacitor (not sure of size) and a single amp powering front/rear/sub. It is made to power front/rear/sub and the speakers work fine. The sub just spits out a constant squeal and no bass. Help me figure out the problem. Could it be a broken amp even tho the speakers work fine. Could there be a short or a grounding problem? Could the sub be blown? Or is it just a problem with capacitor or the wiring? Let me know if you guys have any idea. Thank you in advance!

When you say the RCA's are unplugged, are they unplugged from both ends or just unplugged from the headunit and still plugged into the amp?

 

[camaroqqq]

When you say the RCA's are unplugged, are they unplugged from both ends or just unplugged from the headunit and still plugged into the amp?

They are unplugged from the amp. Only front and rear RCA are plugged into the amp. The sub RCA are unplugged from the amp... this is lame

 

[camaroqqq]

When you say the RCA's are unplugged, are they unplugged from both ends or just unplugged from the headunit and still plugged into the amp?

They are unplugged from the amp. Only front and rear RCA are plugged into the amp. The sub RCA are unplugged from the amp... this is lame

 

[tpmeredith 10+ year member]

They are unplugged from the amp. Only front and rear RCA are plugged into the amp. The sub RCA are unplugged from the amp... this is lame

I'm inclined to agree with CRXBMPN then in saying the sub outputs on the amp are toast, but im no pro

 

[camaroqqq]

Would it screw anything up if I plugged the rear speakers into the sub output on the amp. Then I can see if the rear speakers squeal. If the rear speakers squeal I would know its not the sub itself. If not then it could be the sub. I have a crossover going to the rear speakers. My sub outputs from the amp have left and right so I could plug in the rear speakers. Whatcha think?

 

[camaroqqq]

Sow how should I test the outputs from the amp? Should I plug a different set of speakers into the sub output? Or should I try to get my hands on another sub to test it on?

 

[ChevyRidinLow]

stop scaring the sub //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif