How could I wire my amps/subs?

if you get another IDENTICAL polk pa1200.1 you can 'strap' or externally bridge both amplifiers together to get 2400 watts rms at 2 ohms.which is overkill for your subwoofers. your best bet would be to find a single amplifier that properly powers your subwoofers and sell the pa1200.1 to offset some of the cost.