I think it would be a good idea to have matching subs, but it is not a "must". I have an EP600 in the back and 2 EP350's in the front.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85