well, in simple math, yes, wiring the ohms up means less power, but does not mean that you will see less output. because you can only feed it x amount of current, andything you try to draw above that, you loose more voltage than you gain in current, and efficiency goes down. so, you may be able to push a louder, cleaner signal where you don't see the clipping and distortion. real-world example- my friend had 2 1200d's powering 13w6's. he only ever played it to the point that the stock 160a alt and optima drug down. one day he accidentally knocked one remote wire off, and realized it was louder. run the rcas from the out of the first amp, to the in of the 2nd....... another mean-time option is to just use one amp long story short, ohms change relieved the voltage drop, raised efficiency, and volume. true, if you could actually feed the amps full power, then you could re-strap, and get full power. you can double, or even triple the 4awg and that could work for your runs, but remember to stick to the amp rating of the wire/distance... you can google it to get the chart. oh, and running one amp is always an option
