Originally posted on 04-07-2008 by memphisman
Yes your fine but I wouldn't run any 8....all 4 and 1/0.....I have a mountaineer and I have 1/0 all the way back and splits into three 4 gauge..And I have 2 1000/1 and a memphis belle 1300...Just try to use alot more 1/0 than the 4 gauge...
His 300/4 may have smaller terminals, and for that matter hes not running enough power on the 4 channel to NEED 4awg to each amp, 8awg is enough for a the max power of the thing. A foot long section of 8awg can handle even those 500/1 amps with no problem assuming its fed by a large main. Only thing I wouldn't do is run a main power to each of those, as distance reduces how much it can carry. I would still say use the 1/0 for main, but you dont HAVE to run all 4gauge.
He should be fine with 2x4awg and 1 8awg after the distribution block. The question is, does he already have the 2x4awg and 1 8awg block? If he has it he can use it, no need to buy another one.
Seriously though, if you dont have the block yet, just use 4awg all around just for the sake of matching, plus its just that much more breathing room on the 4 channel. At worst you have to find a narrow 4awg terminal for the 300/4, but you probly can fit 4gauge on there no problem. Might as well oversize your wires just to be safe though right?