I've decided to invest in a sub for the first time - my lounge is aroung 6m x 4m and has KEF Q35 main and Celestuion bookshelf rears with a KEF Q65 Centre. Would the new REL Quake be OK for this set up (would it make a difference in a reasonably small room?). If so, is there a right or wrong position. For example, can I place it close to the main floor standers or behind a chair. Finally, what speaker cable would anyone recommend??