speakers pulsate with no bass added

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=20312
Printed Date: July 16, 2025 at 9:42 PM

Topic: speakers pulsate with no bass added

Posted By: banga4
Subject: speakers pulsate with no bass added
Date Posted: October 19, 2003 at 5:07 PM

I dont know what the problem is but when i turn my stereo upwithout any type of bass my subs and rear deck speakers start movingin and out slow then fast, But i am not putting any bass in them.I know this is bad for my system so i woul love it if someone was to point me in the right direction please.I have a Rockford fosgat rf9400 cd player cadence 15" mallet subs and now i'm on my second amp to try and fix the problem but it still exists.No wires are crossed and rca's are on right side and power on left, Groung is perfect.

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john

Replies:

Posted By: bberman1
Date Posted: October 19, 2003 at 5:28 PM

Dose it make any kind of sound? When you say there is no bass going to them what do you mean? Also is this happening when you turn everything on or off or is it all the time.

Posted By: italnpimp59
Date Posted: October 19, 2003 at 7:27 PM

sounds like a problem with the installation, check your amp's ground, matter of fact, ground it somewhere else. if that doesnt work, check the ground for the radio....try to ground that to chassis rather than just connecting it in the harness. we know its not the amp bc you switched them out and still have the same problem. if you still have the problem, connect the remote wire to the red ACC wire in the wiring harness. and if you still have the problem, then i would say either your RCA's need to be replaced or the radio is giving you the problem!

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