Jump to content
SAU Community

Speaker Interferance

Curtis.Cow

By Curtis.Cow,
in Car Audio & Electrical

 Share

Recommended Posts

Curtis.Cow Community Regular

Curtis.Cow

Posted
Posted

hey,

when i turn my sounds system on, whilst the car isnt on its all fine and sounds fine. but soon as i turn on the car even into acc mode, it starts to make a buzzing humming noise, i start the car and it still makes the noise, i rev the car abit and the noise gets louder, then drops back down with the revs...

i was woundering if anyone knows what this could be and how i could go at fixing it, really annoying lol...

Link to comment
Share on other sites
Carbon 34 Grand Master

Carbon 34

Posted
Posted

It could be a lot of things, so to cut to the chase, read this

Ten commandments of noise

is a whine, or static noise ?

static is plugs , coils arcing to ground most of the time

whine, is normally a ground loop, RCA shield stuffed, wire to the wrong power source, or some other accessory causing issues, fan etc.

does it have amps ? or just a deck ? does the noise come from all speakers ?

does it do it on the radio and CD ? if just the radio look to see if the antenna is grounded and tight, or plugged in fully ?

clean the terminals on the battery and make sure its tight. ground to the alternators frame mounting bolt back to the battery ground will help noise and current surge issues ?

a powerline noise filter is a bandaid , and wont solve the actual problem correctly.

Link to comment
Share on other sites
Curtis.Cow Community Regular

Curtis.Cow

Posted
  • Author
Posted
It could be a lot of things, so to cut to the chase, read this

Ten commandments of noise

is a whine, or static noise ?

static is plugs , coils arcing to ground most of the time

whine, is normally a ground loop, RCA shield stuffed, wire to the wrong power source, or some other accessory causing issues, fan etc.

does it have amps ? or just a deck ? does the noise come from all speakers ?

does it do it on the radio and CD ? if just the radio look to see if the antenna is grounded and tight, or plugged in fully ?

clean the terminals on the battery and make sure its tight. ground to the alternators frame mounting bolt back to the battery ground will help noise and current surge issues ?

a powerline noise filter is a bandaid , and wont solve the actual problem correctly.

its like a buzzing fuzzy noise, yes i have 1 amp, and i run a incar computer, it comes from only the front tweeters, and it happens ALL the time the car is on and the system is turned on.

if you can help it would be much apricated. If not it looks like its going to a shop to fix. :banana:

Link to comment
Share on other sites
Carbon 34 Grand Master

Carbon 34

Posted
Posted
its like a buzzing fuzzy noise, yes i have 1 amp, and i run a incar computer, it comes from only the front tweeters, and it happens ALL the time the car is on and the system is turned on.

if you can help it would be much apricated. If not it looks like its going to a shop to fix. :(

first guess, in car computer power supply is producing voltage "ripple" find a oscilloscope to test it

or the RCA wires are run too close to a coil of wire(power supply, high power source, low quality voltage converter or RCA with broken shield picking up RFI

Tweeter on a amp or deck powered ? try a new RCA RUN OUTSIDE the car to the tweeter amp, does it still do it ?

tweeter speaker wires touching metal ???

Link to comment
Share on other sites
Curtis.Cow Community Regular

Curtis.Cow

Posted
  • Author
Posted

the tweeters plug into the back of the speaker at the front, i have 1 amp to power everything...

when iget home ill try a new RCA cable outside the car and ill take all the power wires away from the others... see what happens

ill let you know once ive had an update :(

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Sleepergm
      Genuine nismo N1 rear pods - anyone got any?

      By Sleepergm · Posted

      I’m sure this has been discussed many times. But anyone have any or know someone that is selling genuine N1 rear pods? I’m still shocked no one replicates these yet. Looking to buy some. Added a photo of the part. 👍🏻
    • Nismo32
      Alcon TA6 Calipers on R33 GTST - Flexing

      By Nismo32 · Posted

      Hello, The dog bone wont have much to do with this - the calliper applies a load about the disc - the outside of the calliper is more flexible than the inside by virtue of it not haveing the big torqued down bolts, additional metal structure on the caliper itself, and mostly not being cantilevered. So the outside of the calliper is pushing away as its more bendy and brining the inside with it as an equal pressure on both sides of the caliper looks to cause more flex on the outside - which makes sense. I have done this same thing with the calliper unbolted from the dog bone - same thing happens. Although id have to watch more carefully to see how much more the outside moves than the inside in this case. Im guessing there is a point in the pedals travel where the pressure is not actually increasing in the system - its just volumne displacemnt - and because the outside of the calliper is more flexy, it receives that volume. Have gone back to Alcon again - but beyond a resolution there I would stay clear of this calliper and possibly any of the lighweight type of callipers - especially if you have the smaller 15/16" master cylinder. Cheers.
    • GTSBoy
      Alcon TA6 Calipers on R33 GTST - Flexing

      By GTSBoy · Posted

      Yes, you can very clearly see from more than one angle that it is the whole caliper moving left-right, not deformation of the caliper. The top moves, the bottom moves. Equally. It should be possible to see where the movement is occurring. Just need to look more closely.
    • billyons
      Water pump replacement - Sydney region

      By billyons · Posted

      Hi Folks, my 2009 Skyline 370GT “Crossover” wagon is losing water and has been diagnosed as needing a water pump replacement (it’s an internal timing-chain driven unit, not the usual electric type that seems to be used across many manufacturers). Am looking for any repairer recommendations in the Sydney /Wollongong region who can be trusted and are experienced in this sort of work on the VQ 36 engine. Many thanks….Bill
    • Komdotkom
      Alcon TA6 Calipers on R33 GTST - Flexing

      By Komdotkom · Posted

      While all of the above makes sense, we're not talking about some Ling Long calipers of AliExpress; Alcon would have to be one of the top 5 caliper suppliers in the world and these are not their budget units. If there were manufacturing defects in the caliper causing this issue I'd be very disappointed. Having re-watched the video a few times I think it's dog bone/mount related. The caliper moves independently to the rest of the suspension and brake assembly which suggests to me that it's not mounted rigidly. I know this sounds stupid, but have you got enough thread on the retaining bolts or are they a poofteenth too long and it's not super tight? For axial movement to be occurring without deforming the caliper that can be the only answer.
×
×
  • Create New...