Weird Whine

Home / the12volt's Install Bay / Car Audio / Weird Whine (

Topic Closed)

Welcome Guest :)

Members

Next Page > < Prev Topic Next Topic >

z28plus

Member - Posts: 24

Joined: December 12, 2002

Location: United States

Posted: July 06, 2004 at 12:34 PM / IP Logged

Just installed an amp for my sub and a pr. of Focal componets. When the truck is running, I get a whining sound through the speakers, but only when its running??

I am running two sets of RCA's and a LOC, as well as 4ga power cable. I have heard that if you run the power cables next to the RCA's then you may have a problem. Any truth to this.

DYohn

Moderator - Posts: 10,741

This member has made a donation to the12volt.com. Click here for more info.

This member has been recognized as an authority in Electrical Theory. Click here for more info.

This member has been recognized as an authority in Mobile Audio and Video. Click here for more info.

Joined: April 22, 2003

Location: Arizona, United States

Posted: July 06, 2004 at 12:54 PM / IP Logged

Yes, power and signal cables should be seperated as much as possible. The most common causes for engine whine include: bad ground on amplifier or head unit, bad RCA cables, bad LOC, damaged or grounded speaker wires, induction into the signal cables or the LOC from power or ground cables, or bad ignition system components in the vehicle. To isolate it requires a slow, methodical approach. Try one thing at a time.

Good luck!

Support the12volt.com

rallysport

Copper - Posts: 172

Joined: April 10, 2004

Location: United States

Posted: July 06, 2004 at 12:54 PM / IP Logged

yes, try running them on opposite sides of the vehicle and see if that helps. generally if your running sub amp without amping up speakers youll be fine running power wire with rcas but when powering speakers its best to seperate the power from the rcas by 36 inches or so.

z28plus

Member - Posts: 24

Joined: December 12, 2002

Location: United States

Posted: July 06, 2004 at 2:16 PM / IP Logged

ok, i will try that, this is a 4-channel amp that is powering a 1 JL sub and a pr of focal componets.

any other feedback is appreciated.

forbidden

Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: July 06, 2004 at 5:14 PM / IP Logged

Where did you ground the amp to?

Top Secret, I can tell you but then my wife will kill me.

z28plus

Member - Posts: 24

Joined: December 12, 2002

Location: United States

Posted: July 06, 2004 at 7:12 PM / IP Logged

grounded to the body in the door sill?

Alpine Guy

Platinum - Posts: 2,478

Joined: October 18, 2003

Location: Canada

Posted: July 06, 2004 at 10:21 PM / IP Logged

I usually find the problem to be the remote turn on wire. It should go away if you jump the power wire on the amp to the remote terminal instead of getting power from the ignition. Try that, if it goes away, then you will need to throw a relay in the remote turn on wire.

But don't leave the remote wire jumped from the 12v power to your amp, , it will keep the amp running all the time and kill your battery.

2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

z28plus

Member - Posts: 24

Joined: December 12, 2002

Location: United States

Posted: July 07, 2004 at 10:42 AM / IP Logged

I have the remote wire connected to a PAC harness that had a remote wire and RCA's coming out.

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: July 07, 2004 at 11:16 AM / IP Logged

That could be part of the problem. Don't run remote wire and RCA together. Split it out.

Support the12volt.com

nychris2004

Copper - Posts: 54

Joined: July 01, 2004

Location: United States

Posted: July 07, 2004 at 11:53 AM / IP Logged

everybodys right but the problem is definitely running the rca's and the power wire together..u can have the rca's with the remote wire, but them and the power wire WILL make noise 95% of the time, this much i do know =)

Next Page >

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.