I have a kicker zx400.1 and also want to buy the kicker 750.1 for 100 dollar. the reason why i want to buy it is because i am running 2 sub that is 4 ohm so it become one ohm and it is not stable. If the 750.1 is bridgeable then ill just wire them to series to get a 4 ohm load so they will get 375. Correct me if im wrong. I am just wondering because i saw it somewhere on the net that the kicker 750.1 is bridgeble. My question is if it can can the 400.1 do the same or should i buy the 750.1