Just needed a little advice. I am totally new to HT and have been researching day and night for a couple of weeks now and have decided on the Epic Grand Master system along with a yamaha RX-V750 receiver for a 15'x15' room with 8' ceiling. I have read that it might be a good idea to go with a different sub such as SVS or HSU, could I get a little more info. on this or any other recommendations. Thanks alot for your time!