Loud obnoxious bass tone when radio is turned off

GizmoGST · Jul 19, 2003

Ok i have a amp and subs hooked up to the stock headunit by hi/lo converters. Everytime my radio is not playing music as in i shut if off or if i temporarily take a cd out i get a loud deep tone from my subs..... My ground wire from my amp is secure. Can the sound be coming from the hi/los? any1 using the stock headunit and a amp have this problem?

Its annoying enough for me to drop a couple hundred bucks for a aftermarket....

0Jiggy0 · Jul 19, 2003

the high/low converter coming from ur stock deck to give the RCA signal to the amp is your problem, usually they come with a ground wire make sure that is grounded

GizmoGST · Jul 20, 2003

ok i tried connecting the hi/lo ground wire a several metal areas within its reach behind the headunit.... i still get the tone... it disappears if i turn the gain down to a 1/4..anything above i get the noise...

0Jiggy0 · Jul 20, 2003

how long is ur amp ground wire

Kanadian_kev · Jul 20, 2003

What power source turns your amp on? Before I bought a regular cd player (with amp turn on/off function) I had my amp turn on with the ignition, when the radio was turned off I got the loud obnoxious tone. Buying a cd player that turned the amp off when it turned off fixed the problem.

GizmoGST · Jul 20, 2003

Kanadian that must be it cause my amp is on as long as the key is turned...the radio doesnt control it.... so i guess the only road is to buy a cd player?....damn i wish i didnt waste money on the hi/los. I was going the stealth direction cause my last system got stolen. The stock infinity player is actually pretty good. A lot of my friends have aftermarket decks and they say i have a better system

btw my amp groundwire is about 3 ft long

pudd_dogg · Jul 21, 2003

What guage is the ground wire.

0Jiggy0 · Jul 21, 2003

try cutting that ground in half before you change the ignition wire for your amp. Make sure the ground wire is the same gauge as the power wire and no longer then 18 inches(1and a half feet) :scholar:

pudd_dogg · Jul 21, 2003

Or useing a larger guage ground wire

SeatownGST · Jul 21, 2003

Yeah, ensure the ground is of super high quality. If it's piggy backed that could cause problems.

But simply upgrading wire gauge or shortening it doesn't sound like it would be a solution in this case.

I'd just roll with the lower gain settings since that relieves your amp of the extra stress, and nullifying the problem.

Loud obnoxious bass tone when radio is turned off

GizmoGST

0Jiggy0

GizmoGST

0Jiggy0

Kanadian_kev

GizmoGST

pudd_dogg

0Jiggy0

pudd_dogg

SeatownGST

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