I've only ever had an amp setup to drive my sub. If I wanted to have 2 amps, one for sub and one for front channel how would I wire the power? In series, seperate etc? At what point should I consider a cap, it's based on power right?

 

don't quote me on this, but from what i've learned you generally won't need to worry about a cap.

For most multi amp setups, people run a single large guage (depending on amount of total power) from the battery to a distrobution block and from there, a smaller guage wire to each amp.

Each amp obviously will have it's own ground wire (at least the size of your power wire).

Remote wire's, for my second amp, i've always piggybacked off the first. Generally no trouble. But i've heard once you get past two amps, there are generally better ways to do it.

 

Run for example 4 guage wire from the battery back then split off with 8 guage persay, or use 4 guage don't go larger, theres no need. do the same with the ground. and if by chance you're usuing multiple subs with multiple amps, hook the amps (I think) in series and Split the remote wires running it to both amps......

andrew

 

Andrew, also take into consideration the wire length and it's capacity to carry current. If the customer has a vehilce with a power wire run of 18 feet (which is real easy to do), then a 4 gauge is going to be limited by it's ability to carry current over that length. The next thing to look at is the size of the amps. If the customer has a big mono block in there running off of 8 gauge line because he did not know better, then 4 gauge and another amp is probably going to be a bad choice. You choose the wire for the length it is in the vehicle, it's ability to carry current over the length and finally for the size of the amplifiers at the other end.

 

who has that cable length chart online?

 

Well this will be an Impreza, so not a big vehical. I'd think one amp under passenger seat to drive front speakers. The one in the trunk with the sub. No more than 300W for each. In the end this may be a waste considering 99% of the time I'm listening to Sirius and the quality is terrible! Maybe I should drive my fronts off the HU.

 

thanks I totally forgot about factoring the length lol I think I was in a daze when I typed that last bit lol

andrew