Amp problem

Home / the12volt's Install Bay / Car Audio / Amp problem (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

Sancho

Copper - Posts: 162

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

Joined: August 05, 2004

Location: United States

Posted: January 04, 2005 at 10:07 AM / IP Logged

My friend has just installed new amp ...and it seems that strange noise going from speaker...and even if he connect rca or disconnect doesn't really matter cause there is no music coming out only this noise what kind of problem might be????

Thank You

Head Unit:Alpine CDA 9835

6.5 MB Quart Pce 210

Amp:JBL 80.4

Amp:JBL 1200.1

Sub:Adire Brahma 12 MKII

DYohn

Moderator - Posts: 10,741

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: January 04, 2005 at 10:28 AM / IP Logged

What kind of noise? Is the engine running?

Support the12volt.com

Paradigm

Silver - Posts: 284

Joined: November 25, 2003

Location: United States

Posted: January 04, 2005 at 10:36 AM / IP Logged

My first thought would be alternator whine. But you'll need to give us more info to confirm that.

VEHICLE: 2002 GMC Sonoma ZR2

Alpine CDA-7940

AudioControl EQT x2

JL Audio 1000/1

JL Audio 10W6 (originals) x3

Kicker ZR120

Kicker ZR460

Polk GXR-6 x4

Polk GXR-4 x2

Sancho

Copper - Posts: 162

Joined: August 05, 2004

Location: United States

Posted: January 04, 2005 at 3:55 PM / IP Logged

ok engine is not runnig...if i hook up rca nothing changes no sound at all ...only noise comming out

Head Unit:Alpine CDA 9835

6.5 MB Quart Pce 210

Amp:JBL 80.4

Amp:JBL 1200.1

Sub:Adire Brahma 12 MKII

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: January 04, 2005 at 4:01 PM / IP Logged

Like I said before, WHAT KIND of noise? A hum? A whine? A whistle? A scratchy sound? Iron Maiden? What??

Support the12volt.com

Sancho

Copper - Posts: 162

Joined: August 05, 2004

Location: United States

Posted: January 04, 2005 at 4:55 PM / IP Logged

a whistle

Head Unit:Alpine CDA 9835

6.5 MB Quart Pce 210

Amp:JBL 80.4

Amp:JBL 1200.1

Sub:Adire Brahma 12 MKII

DYohn

Moderator - Posts: 10,741

Joined: April 22, 2003

Location: Arizona, United States

Posted: January 04, 2005 at 5:22 PM / IP Logged

A whistle with no input to the amp is usually internal feedback due to gain set way, way too high, or in the case of a sub amp can also indicate that your low-pass crossover is off or set too high. Or, the amp can be fried.

Support the12volt.com

Sorry, you can NOT post a reply.
This topic is closed.

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.

Amp problem

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.