having problems keeping the amp on
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=39495
Printed Date: May 29, 2024 at 3:20 AM
Topic: having problems keeping the amp on
Posted By: dave25456
Subject: having problems keeping the amp on
Date Posted: September 21, 2004 at 5:18 PM
I was doing a freind some help installing his amp and hu when we ran into a problem.I put in a kenwwod hu and a 400w profile amp .Now I connected all the car speakers and two "8 subwoofer .The problem I am having is when I turned on the amp the amp will shut off and turn on constantly causing the speakers to make a popping noise when it did that .Now I tested that amp in my car with the headunit but I threw in my dual 12" 1000w lanzar speakers and worked fine which makes my head scarcth any help will be appriciated.thanx
-------------
dave25456
Replies:
Posted By: Alpine Guy
Date Posted: September 21, 2004 at 5:28 PM
throw it in your car again, , but with the 8" subs hooked up, , i bet there shorting out.
-------------
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.
Posted By: furflier
Date Posted: September 21, 2004 at 5:31 PM
Check your power & ground wire.
-------------
Posted By: jeffchilcott
Date Posted: September 21, 2004 at 9:25 PM
check the wires on the subs make sure none are touching each other or the basket
-------------
2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place
Posted By: jimmeezgolfvr6
Date Posted: September 22, 2004 at 2:19 AM
also, how's the condition of the car battery? strong enough to start the car with ease?
-------------
all problems can be resolved with a hammer
Posted By: Chad7n7
Date Posted: September 22, 2004 at 9:57 AM
what is the impedience of these 8's, sounds you may be improperly loading this amplifier, causing it to go into "protection" mode. -------------
Posted By: heavilymedicate
Date Posted: September 22, 2004 at 10:49 AM
Do what Alpine guy said. Thats were my best quess is. WooT!
Posted By: xtreamcc
Date Posted: September 22, 2004 at 12:30 PM
The comming on and cutting off is a typical Ohm load problem. Check ur speakers connections because ur overloading the amp somewhere.
-------------
"Shiny chrome when used in conjunction with bikini models is particularly effective in inducing brain deficit disorder"
02 Jeep Grand Cherokee
Monster System on its way.
Posted By: dave25456
Date Posted: September 23, 2004 at 4:53 PM
how do you check the power or ground wire to see if that is the problem?
-------------
dave25456
Posted By: forbidden
Date Posted: September 23, 2004 at 5:01 PM
Disconnect all the speaker wires and the rca cables. Make sure that the connection on the power / ground and remote on wires are nice and tight. Make sure that there is not a single small strand of wire that might be touching the amp or another terminal. Make sure that where the amp is grounded to, the connection is clean and tight. If the amp is stil turning on and off, then the magic amplifier dust has escaped and the amp will need to go in for service. If the amp is fine, then plug in the rca cables. If it starts to go on and off, you know where to start looking for the problem. Run a new rca cable from the cd player over the seats to the amp. Did this solve the problem? If this was not the problem then look at the speaker wires and how the wires are attached to the subs. Post up the results.
-------------
Top Secret, I can tell you but then my wife will kill me.
Posted By: kgerry
Date Posted: September 23, 2004 at 5:10 PM
meter the power terminal on the amp terminal connector for 12 volts, meter the ground terminal for ground and then meter it to the negative post of the battery and check the impedence... should be less than 1 ohm resistence to ground..... then meter the load of the 2 subs combined... should be 4 ohms for that amp... if its not then wire them in series instead of parallel... it wont hit as hard ( but heck, it's not hitting at all now anyway ) and should run fine..... having tried all that, if it still does the same thing you may have a problem in the amp.... ( open ground on the RCA input, 1/2 of an output stage blown, etc ) ------------- Kevin Gerry
Certified Electronics Technician
MECP First Class Installer
Owner/Installer
Classic Car Audio
since 1979
|