Yes there is, if you have 2 dual coil 4ohm subs. You have to wire them parallel (+ to + and - to - ) then that'll make each subwoofer to 2ohm load, then you have to bridge them on parallel to make it 1 ohm. 1 ohm load will make the amp push more but make sure your amp can handle a load of 1 ohm and also FYI the amp gets hotter faster at a 1 ohm load.