problom with whole system

[twanked~ls 10+ year member]

i have a 9856 alpine hu pg 600.1 amp and 2 jl w3's. for about the past 4 months i will be listening to the stereo turned up and suddenl;y the volume cuts about a 1/3 and everything including the subs become quieter. idk what to do or what to check. could it be the radio? what causes the whole system to drop in volume like that? thanks alot

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[Qbenjamin 10+ year member]

check the gains on your amp. Is it getting hot to the touch? What is the average level that you listen to your h/u?

 

[twanked~ls 10+ year member]

it not only turns down the bass but the speakers also. i believe it has somthing to do with the hu or a loose wire but i checked the wires already

 

[twanked~ls 10+ year member]

its still an intermitant problom so i dont know how to test certein things

 

[TreyE 10+ year member]

wiierrrddd....dum dum dummmmmm

 

[twanked~ls 10+ year member]

how could i test certein components

 

[Rattlebrain 10+ year member]

Some amps have a thermal protection that when it gets too hot, it doesn't shut completely down but reduces power and gives the amp a chance to cool off a bit. That might be the deal.

 

[Rattlebrain 10+ year member]

Just re-read the post. Just noticed the part about "whole system". Sorry, I'm not feeling well today and on some good **** for medicine.

 

[andrewmoore13 10+ year member]

Some amps have a thermal protection that when it gets too hot, it doesn't shut completely down but reduces power and gives the amp a chance to cool off a bit. That might be the deal.

i would agree with that but his speakers are doing that as well?

sounds like an HU thing...

 

[TeddyUnited 10+ year member]

if the whole system is loosing power then, its one of 3...

1. bad HU

2. bad wiring somewhere, possible weak connection from HU

3. Faulty electrical.

best bet HU, swap for a test

 

[XanderMoser 10+ year member]

I would to a system voltage check before I swapped the HU out. Run your system at the settings where you find it cuts out, and keep a volt meter on it. Watch it when the volume drops, see if it's a voltage problem.

 

[TeddyUnited 10+ year member]

I would to a system voltage check before I swapped the HU out. Run your system at the settings where you find it cuts out, and keep a volt meter on it. Watch it when the volume drops, see if it's a voltage problem.

he is running barely anything, so even though it's a possiblity, i doubt it

 

[XanderMoser 10+ year member]

he is running barely anything, so even though it's a possiblity, i doubt it

True. I don't know anything about that amp. But if his battery or alt is crapping out, you never know.

 

[XxSuperAdamxX 10+ year member]

My friend's having the same problem with the same HU. Volume goes up to 18, speakers go off sub keeps hitting, then it goes on back and forth. Weird.