Hi
I've got 2 amp..one 4X50wrms (2 X 25 amp)
and the other is 1X480wrms (2 X 20amp)

i have a 15feet 4gauge , and a distribution block that split in two 8gauge for both amp

My question is, what amp should my fuse connected between my battery and my distribution block ?
I have a 30Amp, but it just blown !
thanks !

 

It should be at least 100amps to allow for maximum draw from your charging system. Fusing is to protect your wiring not the amps. I am not sure what a good fuse for 4 awg would be, but i would use something like 125amp.

 

I use 80 Amps, and I am drawing for 1100w through 4AWG.

 

check out this thread.

 

Ok i think im okay with my 80amp...
But my problem is that my amplifier is often clipping, even if its input is almost 0, whats the problem ? Not enough power ?

 

Sounds more like the gain control for the amp is set too high.....have you tried setting it back to minimum to see if the noise goes away?

 

well when my input is almost at 0, its ok,
but it begins to clip around 1/4...
(I have a clipping light on the amp.. so it helps me !!!)
and when its not clipping, its not loud enough...
what makes an amp clip ? not enough power ? bad setting? problem with amp ?

 

To answer the questions....yes, yes and yes....

More info about your setup is needed to give better answers....amp and speaker model #s, how the sub(s) is (are) wired, what size power and ground wires and how were they installed?.....there are a few variables......

 

Eclipse XA 1000
Eclipse SW7200
connected in parallel... so its 1X480wrms and the sub is 500wrms

my wire:
4gauge from battery to a splitter (around 15-20feet)
split in 2 8gauge:
one for my orion 4channel amp
the other for my Eclipse

My orion is grounded with a 8gauge (2feet)
My Eclipse is grounded with a 4gauge(3-4feet)

My remote is from my unit (Alpine 9853 , splitted (tapped) to each amp... not a low gauge... don't know.. maybe 14 or 16 gauge ?

 

with the way the sub is wired now, what is the final load (ohms) presented to the amp? and what are the amp's specs ?