First of all, I like to say Hi~! to everyone here. As I newbie to car audio, there's something I don't understand on my upgrade.

Ok my car audio setting, HU, 1unit 4 channel amp, 1 unit 2 channel amp, 1 unit crossover, Front speaker will be 3 way component (newly installed), rear speaker is JBL 2 way component, then 1 subwoofer.

4 channel amp for 3 way and 2 way speakers

2 channel amp for subwoofer.

The problem. Newly install 3 way component had the sound of like aeroplane flying "yeeeee" when driving. And there's amp delay problem on the mid n woofer.


Every was fine, untill the technician burn my 2 channel amp n replace a same1 for me(is old unit), and I upgrade my 3 way component.

Any expert know the cause or the way to resolve this problem?

The installer also headache about what's the problem.
Hmm.. grounding check, cables check, fuse check, even modify HU. Any other possibility..

Damn unhappy with the upgrade that cause me such problem.

Yes the cable is seperate that way. Hmm..time comsuming headache thing, guess need to put my car there for another week.

Hmm..didn't use twisted pairs before, is a good suggestion.

Yes it is, so I throw my car back to them last night, just tell them I don't care how, just get the problem solve. I can leave it till weekend. I presume should be more than enough time for them.

My location is Penang Island. Mostly all here from KL or Selangor?

Hmm..so normaly how to overcome noise problem?

Wah, is like start from scratch again..
Thanks for the idea, oh well, do hard or do none..

Coaxials cable with good shield very expensive eh..

But before upgrade all fine, I presume the cable running should be fine.

Hmm...I still wondering about the outcome of changing cable. If it doesn't much effect I'll found not worthy.

However, if it solve my "whinning" effect problem sure I'll change..haha..

I'll drop by to look into that, I didn't do the installation. Thanks man.

Had comfirm that RCA cable output from HU, didn't wrap the RCA cable with HU's acc or batt wire close together with wire tape.

Change HU test same, change RCA cable solve the problem.
Conclude that HU output 2V insufficient, so instead of change cable, just re-tune, and it solve. What the heck the installer do I also dunnu. I'm so noob. Any pro please explain?

Miss out reply. Sorry sorry.

I done it in Hutton lane Class Tech.

Here the story goes. At first is like 5 years back, when they just started. A good fren recommend me to them. I go there and started my first ICE. The job the tunning, the testing. The proccess impressed me. I actualy in the workshop for the whole proccess from head to toe. Then untill after completion, me go test out with fren frens which they have ICE before me. My SPL beat them with 1 sub-woofer where they got 2.
Then all started get interest. Soon whole group come in 1 by 1. Times goes me and the pll there become fren lor...

And was some time never get back there after my car total lost. Lately going back for setup ICE again. Oh well, the service is like horrible. Maybe that happen in most case, where the business grow, then service drop....

Or maybe only unprofessional service on me as we fren long time liao..

Edit: Price to others I not sure, so far to me and the folk I bring there all feel fair. If you found a better place or better technician I would like to see them. Personaly I feel Class Tech is pro, just he lazy to tune.

This post has been edited by DeReturner: Aug 26 2006, 12:36 PM

Distance won't be any prob.

If there's a huge diff why not.. Maybe 1 day we all go together..


Alpha, Golden Auto. Where are they? Well, Alpha sound familiar can't recall, refresh me please. Is Tokyo still as good as before?

Tokyo = Dato'Kramat, behind Federal Cinema(Old time), now dunnu some finest centre or night club d.

Was well known in the 90s. I never been there tho. My fren did, comment that they are good, but expensive.