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Question About Dual Stereo Amplifier XPA4640
installation...

i have connected all the wires correctly, i check all connections atleast 4 times, the speaker is a 10" sony xplod subwoofer rated at 4ohms and 1100 watts max. which works properly. when i turn the key everything will turn on, including the amp, however it turn on in protected mode. it stays on for about one second and shuts off. i have checked all wire connections and they are all connected properly. i bought a new wiring harness to the head unit and replaced that. i returned the amp for a new one the same kind and i have the same problem so it has to be something i'm doing wrong. what could it possibly be?

Asked by Shawn on 02/04/2009 9  Answers

ManualsOnline posted an answer 15 years, 2 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

itworld970 posted an answer 15 years, 2 months ago

4 Some vehicle's metal parts are not completely grounded with the battery. I ran into this same problem. The solution is to move your amp's ground wire and ground in a different area. You can use a jumper wire for testing different areas on different metal parts as your amp's ground wire is probably very short. Once you locate an area that works you may have to relocate your amp to the new area. Hope this helps.
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john posted an answer 15 years ago

0 no this amp is crap a had the same amp i put a vollage meter on it to check if i was losing power i was not it was the amp if cant hold a charge or keep powering the subs nor can it recharge itself fast enoght/ now Dual did not put big enoght amps capacitor that is why the power protects keeps cutting on the amp is over powering itself
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nick campbell posted an answer 14 years, 11 months ago

0 check ur fuse coming from the battery cuz i had the same problem with my kenwood amp it would turn on the subs would hit and then it would shut off. so i thought it was my amp so i got a new one and come to find out it was just my inline fuse coming off the battery. i hooked my 600 watt dual amp up and had no problems with the protection coming on or anything so the guy that told u the dual amps are junk is full of ****. so i would just try changing ur inline fuse and holder.
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Butch posted an answer 14 years, 7 months ago

0 I have a dual 580 watt amp and up until recently it was fine. But within the last week it just shuts off. I put in another one and same thing, it goes for maybe a minute when it's loud then the yellow light changes red and shuts off. But then I turn the radio down and it takes a minute or so then it will turn back on. WTF I don't know what I'm doing wrong....please help...
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J1 posted an answer 14 years, 1 month ago

0 it might be your sub. i had the same problem. i have the same amp and i had the gone through the same stuff. i took it to a local audio place and they said it was goin into protection mode because the sub i had was messed up, and it detected the bad sub, he removed my sub and touched the wires on a old speaker he had and it instanly started working. try another sub
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dougtodd37 posted an answer 14 years, 1 month ago

0 my amp has the red light-which means it is being protected.... i have two amps hooked up and i unhooked one of them so i could tune in the speakers that where hooked up to my dual amp... the ground and the power wire from the other amp touched and it turned red.... so i figured i blew a fuse but i checked them all and they wern't blown
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J posted an answer 14 years, 1 month ago

0 JUST DON"T BUY DUAL!!!! ITS A SUCKY PRODUCT!!!!!!!!!!
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J posted an answer 14 years, 1 month ago

0 JUST DON"T BUY DUAL!!!! ITS A SUCKY PRODUCT!!!!!!!!!!
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