Subwoofer Distortion
07-13-2006, 08:34 PM
#1
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Subwoofer Distortion
To the guys that read this, i need a little help or tips on why my subwoofer has distortion. My set up is
Alpine CDA-9857
MTX Thunder6500D Mono-Block (2 ohm Load 500w rms)
JL Audio 12" W6v2
OKAY, heres the deal! The Alpine has a Subwoofer OFF feature. When i turn the subwoofer off using the Alpine head-unit, i noticed that the subwoofer still jumps a little bit, and at high volume it jumps more when its suppose to be off. Is this normal? Im thinking its DISTORTION, but im not 100% sure. The only thing i think of that would cause this is a bad ground for the head-unit or the amp. I checked both of them and there both attached to pure metal, no paint in between at all. IF ANYONE KNOWS WHY THIS IS HAPPENING... PLEASE HELP!
Alpine CDA-9857
MTX Thunder6500D Mono-Block (2 ohm Load 500w rms)
JL Audio 12" W6v2
OKAY, heres the deal! The Alpine has a Subwoofer OFF feature. When i turn the subwoofer off using the Alpine head-unit, i noticed that the subwoofer still jumps a little bit, and at high volume it jumps more when its suppose to be off. Is this normal? Im thinking its DISTORTION, but im not 100% sure. The only thing i think of that would cause this is a bad ground for the head-unit or the amp. I checked both of them and there both attached to pure metal, no paint in between at all. IF ANYONE KNOWS WHY THIS IS HAPPENING... PLEASE HELP!
07-14-2006, 06:20 AM
#2
my guess is the sub is just vibrating from the sound produced by the
other speakers - an easy way to test this is to physically disconnect
the sub, if it still moves that's it. otherwise I'd guess the circuit isn't
completely isolated in the headunit itself, and a small amount of
current is bleeding over to the sub cicuit even though it's off.
either way it doesn't sound like a big problem.
other speakers - an easy way to test this is to physically disconnect
the sub, if it still moves that's it. otherwise I'd guess the circuit isn't
completely isolated in the headunit itself, and a small amount of
current is bleeding over to the sub cicuit even though it's off.
either way it doesn't sound like a big problem.
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