Does something like the PAC line converter lend itself to a lot of engine noise? I can't figure out how to rid of the engine noise... I mean the PAC is grounded, and the RCA are good quality stuff, Streetwire ZN3.5. The only think I can thnk of is that PAC line converters itself just isn't good in isolating noise. Would an aftermarket unit such as the Nakamichi CD-45Z, http://www.nakamichi.com/auto/cdplayers/cd_45.htm, with 4V RCA out help solve the problem?

thanks,
-shing

 

Well where did you ground the PAC to? If its to the head units ground which is also the ground for the amps then GREAT! If not then try doing that. Though line level converters are always going to introduce noise.

Usually a ground is at fault for causing noise.

 

[QUOTE]Originally posted by Pinky
[B]Well where did you ground the PAC to?

 

I hope I misunderstand. The PAC is not in the engine compartment is it? How did it get there? Assuming the PAC is near the stereo (where it should be) You can ground to any of the metal braces around the head unit.

Any piece of metal frame is a good ground. Sand off any paint as this will definitely cause a problem. Some people like to use a star washer.

If the noise is constant you have a ground loop. This means something is not grounded well or your grounds are far enough apart that they are at different potentials.

If the noise varies with engine RPM this is alternator whine. This is also a sign of a bad ground. If you can turn off your amp and still hear it then the noise is in the speaker wire. Otherwise check out your Amp/Head/PAC grounds.

 

Also, make sure you're not running your amp power wire close to and parallel to your speaker wire. This can generate noise too.

I have the PAC line level converter, and I didn't have to ground it. I get no detectable buzz....

 

actually it's not in the engine compartment. It's on the lower dash area on thedriver side. There's a constant low tone popping and there's also alternator whine. Now, it I think it's in the PAC converter because if I pull the RCAs to the amp, the only thing that's left is a low tone popping, that could be a bad ground for the amp....

-Shing

[QUOTE]Originally posted by Y2K++S2K
[B]

I hope I misunderstand.

 

[QUOTE]Originally posted by DJ Qube
[B]Also, make sure you're not running your amp power wire close to and parallel to your speaker wire.

 

i have the oem headunit w/amp, i use the pac and it's not even groundded and there is no noise....

 

Are you using the SNI-15? Did you add a TR-4 too?

 

[QUOTE]Originally posted by lucid
[B]Are you using the SNI-15?