I agree with JL and Larryi. Stick with the maggies if you can place them and you can use the sub quieter at certain times and louder others. Its a great way to control the bass in an apartment. Im not sure of your subs dimensions but look into some aurelex subdudes to put your subs on as that is supposed to help with lessening bass transmissions through the walls.
Buying your neighbors gifts (chocolate, booze, whatever they are into) helps also.
Buying your neighbors gifts (chocolate, booze, whatever they are into) helps also.