Amp 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=35034
Printed Date: July 06, 2025 at 1:38 PM

Topic: Amp issues

Posted By: selfinstalla
Subject: Amp issues
Date Posted: July 04, 2004 at 1:56 PM

Setup: I am pushing a JL 12w6v1 with an MTX 6500D connected to an Alpine cva-1003. I ran the 12w6 in parallel so it would be dropped to 3 ohms. the 6500 is 250w @4 ohms and bridged to 500w @ 2 ohms. With the 4 ohm setup, everthing worked but not enough bass for my liking. I switched everything out in an attempt to do some customization and in the process bridged the amp to get more power.

Problem: With everything turned all the way up, including the bass selector in the radio, I barely get anything out of the sub. Checked all wires going to amp - all seem to be working properly.

Question: Could my output from the radio be bad? Is the amp finished or is it worth being repaired? Or might be another problem all together?

Thanx for the advice.

Replies:

Posted By: DYohn
Date Posted: July 04, 2004 at 2:05 PM

If all you did was re-wire the woofer, you may have reversed the polarity on one of the woofer voice coils. Make sure + is to + and - is to - on both VCs.

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Posted By: selfinstalla
Date Posted: July 04, 2004 at 2:33 PM

I didn't change anything inside the box. I just tried swapping amps to a friends system but no sound comes out of the speakers. All I get is the red power light.

Posted By: defective
Date Posted: July 04, 2004 at 5:00 PM

i would try disconnecting the speakers and try a test speaker, like and old 3.5"...(Funny memories..4x3.5" + bd1000 @ 1ohm = bad smell... posted_image

)

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