tweeter doesnt like accelerating??

[dre2390 10+ year member]

ok so I've had my new system for a little over a week and just yesterday I began to have a problem:

I noticed suddenly while driving that my right tweeter started to make loud static and ticking noises, sort of like a 56k modem makes when dialing?. Anyways it was the same amount at lower volumes, but it stopped when i stopped. After testing things I realized it only does it when I accelerate and louder if I accelerate more quickly. I havent done anything since initial install so I have no clue what it could be //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif . Any help?

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[jd_man_90 10+ year member]

It's most likely interferance caused by the electrical system, such as the alternator. There is a name for this but i can't remember it. They do sell supressors to fix this problem asuming this is your problem.

 

[ravendarat 10+ year member]

Need more info on the set up. What kinda car, are you using amps for the front speakers, what kinda head unit, what kinda speakers including model numbers and lastly where are the crossovers for the speakers located?

 

[dkguitarist 5,000+ posts]

it's called alt whine, (usually a ground loop issue).

 

[dre2390 10+ year member]

well if it is the problem with the alt whine why didnt it do it at the beginning? and whats a ground loop issue mean?

And for more info I have a 2006 elantra. Premiere DEH-P680mp HU. rainbow slc265 components powered by pioneer amp rated 125Wx2 and two 10" AA Assassins in sealed enclosure with x600.1 on them.

 

[dre2390 10+ year member]

bump. and what can i do to fix it? if its an alternator whine...

 

[ravendarat 10+ year member]

OK when using components off an amp and you get noise there are a couple things to look at. First could be a ground loop between the deck and the amp. This could be fixed by running a new ground from the deck to the same point as the amps. That however is unlikly being that it had just started and did not always exist. Second could be the amp ground. It is possible that it has loosened up and is now not making good contact with its grounding point. Thats a likely issue. Third could be interference through the RCA's. This is generally caused by RCA's running to close to power wires but is generally thought to be the culprit far more times than it actually is. Forth is also unlikly but I have seen it. If the crossovers are mounted close to other electrical components they can actually pick up interference. I have seen this in the past, generally when the crossovers are mounted close to the vehicle computer. Fifth, you said a popping sound as well, correct? If it is a popping sound as opposed to a high pitch wine that is more consistent with a ignition problem. This can be either the power wire being run too close to the spark plug wires, a spark plug wire being loose or a spark plug wire having a defect in it like a cut, burn or pin hole. There is my starting list of things to check, I hope something on there helps you out.

 

[ravendarat 10+ year member]

Also verify the amp ground on the other amp as well. Are they grounded to the same location? They should be

 

[dre2390 10+ year member]

Thanks for the help. i'll be using that check list but it's already late tonight so I'll check that tomorrow and get back if its still happening. Later