No Bass?

[Chuckster88]

I wired up a friends thunderbird today and after about a hour the subs stopped playing but the amp was still on. About 20min later they came back on like the amp got hot or something. Someone thought I was using to small of gauge wire(8G) to the amp but I would think the wire wouldn't make it cut off just sound weak or something. Any ideas?

 

[WhiteHeat306]

I would use 4 gauge wire. As far as the subs not coming on, check your RCA connections again, and the inline fuse if you are using one.

 

[Bloomy316]

I wired up a friends thunderbird today and after about a hour the subs stopped playing but the amp was still on. About 20min later they came back on like the amp got hot or something. Someone thought I was using to small of gauge wire(8G) to the amp but I would think the wire wouldn't make it cut off just sound weak or something. Any ideas?

Are you sure the amp didn't go into a protection mode? If the subs are not connected to the amp properly, the amp willl overheat and shut itself down. When it cools, the protection circuit will reset.


Bloomy316's Dad

 

[Infinity]

Get some airflow around that amp.

 

[nhra427]

was the amp and sub new? I had a jl sub that had a blown voice coil that would work then it would stop. so i would push the sub in then it made contact inside and would work for a while.

 

[iskwezm]

Sounds like the amp is going into protection,probably from the speakers being wired at too low of a resistance.What load is the amp rated to?4?2? or 1 ohm stable.What kind of speakers?DVC?SVC?Wired in series or parallel?I doubt the 8 GA. wire had anything to do with it,4 GA is overkill on a smaller amp. I rarely use anything bigger then 8GA unless its A LOT of power.

 

[Scorcher2005]

like other people said, thats the internal circuitry of the amp. most new amps now have a protection mode. when the amp starts to overheat, it will turn off. when it senses it cool enough, it will turn back on. also, in my friends car, at higher volumes the amp turns off for some reason and to get it back on he has to turn off the car and back on and the amp somehow kicks back on

 

[iskwezm]

I noticed my amps will shut down at about 188*.

 

[Foreigner]

Also double check your ground

 

[mustangGTman]

Also double check your ground

This is probably your problem. If the ground is not at an attiqute.....dunno how to word this.. But it is possible to have your amp grounded enough to the point where your amp will come on, but not enough ground for it to push your subs. this is a VERY common problem. Check the LED indicator, if the problem is the ground, then the LED will be dull, play with your ground and if the LED flickers even a little bit, your ground isnt good. If this isnt your problem, then it is probably a protection circuit, most amps that have a protection have an LED indicator to show that the protection is activated, if this is the case then its the protection.