orangemazdab2000
+1y
I agree with CAPPLE that mixing woofer sizes isn't the greatest idea but if you do, be sure they are in seperate boxes. Assuming that each woofer is a 4 ohm load, I'd wire the 2 12's in series (ones positive to the others negative) creating an 8 ohm load. Do the same with the 10's. So now you have two 8 ohm loads. Put both those 8 ohm loads in parallel (The two positives together, and the two negatives together). This will create a 4 ohm load. Bridge the amp using both woofer set positives to the amps left positive output and both woofer set negatives to the amps right negative output. Bridging an amp cuts the load in half. So, your bridged amp now "sees" a 2 ohm load.