PDA

View Full Version : Gawt **** rpm noise



dumple
08-19-2008, 11:32 PM
wrong section most likely but owell
My rcas arnt near a main power wire anymore but i still get an awful rpm noise and when i take the key out of the ignition i get a solid hum

possible causes (i think)
rcas ran next to remote turn on lead
head unit grounded thru stock harness
one of the gold rings around the rca inputs on the amplifier has come loose but fits back in and still plays from the right and left side

Phlipbak
08-19-2008, 11:33 PM
same problem in my charger.. ftl

dumple
08-19-2008, 11:36 PM
do you get the nasty *** hum as well?

Phlipbak
08-20-2008, 12:12 AM
ya, it's a whine, and it gets higher when I press gas pedal.. :(

Louisiana_CRX
08-20-2008, 12:13 AM
Audible ..free tach FTW :D

Phlipbak
08-20-2008, 12:15 AM
tach?

Louisiana_CRX
08-20-2008, 12:17 AM
tach?

tachometer

dumple
08-20-2008, 02:11 AM
tachometer

lol i guess thats an ok way to look at it :crazy:

Excelsius
08-20-2008, 02:47 AM
Your amp probably has a low quality. Get Zed Audio. Not only it has some of the best SQ, but the engine interference has been kept in mind when designing the am and you can't get engine noise with these amps. They're not cheap, but definitely worth it.

dumple
08-20-2008, 02:49 AM
Your amp probably has a low quality. Get Zed Audio. Not only it has some of the best SQ, but the engine interference has been kept in mind when designing the am and you can't get engine noise with these amps. They're not cheap, but definitely worth it.

? you are a genius that solves my problem totally

Louisiana_CRX
08-20-2008, 02:51 AM
Your amp probably has a low quality. Get Zed Audio. Not only it has some of the best SQ, but the engine interference has been kept in mind when designing the am and you can't get engine noise with these amps. They're not cheap, but definitely worth it.

all I can say is :crazy:

dumple
08-20-2008, 02:58 AM
all I can say is :crazy:

funny thing is i did have a zed audio built amp back when i first got into car audio and didnt realize what it was or what it was worth i guess.

it was an esx v550.2

ebrunn
08-20-2008, 03:13 AM
Know you dont have a Pioneer but maybe a fuse of some sort blew for the RCA's on the deck. Just happend for the second time on my 880.

Did you figure out if the source of the loop is the deck or the amp yet?

dumple
08-20-2008, 03:17 AM
no idea if a fuse on the deck blew it would play music threw the speakers would it.
I dont know whats causing the feedback or whatever because it could be either

ebrunn
08-20-2008, 03:20 AM
Could try playing a iPod or something though the amp directly.

dumple
08-20-2008, 03:34 AM
Could try playing a iPod or something though the amp directly.

will do good call im pretty sure its the headunit but i will try this

SPL KID
08-20-2008, 03:41 AM
i get that hum when the stereo and amps are off thru the front speakers. all I have are front no rear speakers except subs. What gives???

blazinb2000
08-20-2008, 03:47 AM
I used to have a high pitched squeeling sound that only happened when during the winter when my vehicle was cold. Increased and decreased with engine rpms. Turned out to be a bad rca wire because I could turn the rca end plugged into the amplifier and it stopped and replaced them and it quit altogether.

dumple
08-20-2008, 03:51 AM
i get that hum when the stereo and amps are off thru the front speakers. all I have are front no rear speakers except subs. What gives???
zah?

components or coax?

dumple
08-20-2008, 03:53 AM
the hum is the most disturbing thing i think my car will keep the radio and stuff on untill you open door, but when u turn the car off it stops making the rpm noise durr but this hum continues on sounds like feed back like when u plug a wire into an guitar amp and you touch the other end

quest51210
08-20-2008, 04:14 AM
check grounds and remount factory grounds. if not then you suffer from what most cobalt, ion, and hhr owners suffer from. worst case scenario, use a ground loop isolator.

dumple
08-20-2008, 04:26 AM
what do they suffer from and your saying to make a new groud instead of using the ground that is in the wire harness

SPL KID
08-20-2008, 06:19 AM
coaxials. I verified the system off and car not running and still got the humm. my speakers aren't on any metal. they sit in plastic honda baffles is why i dunno why it does it still.

ultimate157
08-20-2008, 11:37 AM
un plug the RCA's from your amplifier. Turn it on

Noise goes away, problem is in the HU or RCA's. Noise doesn't go away, redo your amplifier ground.

Plug RCAs into amp, unplug RCAs from your head unit. Noise goes away: Problem in head unit or head unit ground. Noise doesn't go away, problem in the RCAs.

dumple
08-20-2008, 01:44 PM
well it shouldnt be amplifier ground my battery is in the trunk(stock) and thats where my ground is back to the battery

dumple
08-20-2008, 05:47 PM
well tryd the suggestion of an ipod directly to the amp no sound so this narrows down to the headunit now so my next route is to find a better ground for the headunit will do that tomorrow

on a plus note got my aeroforce interceptor scan gauge in and installed its pretty neat tons of info from it i love it