I've just aquired the following front 3 for my lounge - Kef Q3 - Q9C - Q3 and I intend to add a pair of Q2DS surrounds when opportunity allows in the next few weeks. My question is, is a sub going to add anything worthwhile to this? If yes, then what sort of suggestions have people got for a good tonal match. For some reason there isn't a Q-Series sub. (Oh and if any suggestion comes clad in Maple all the better so missus-friendly reasons). My amp is a Denon AVR-1804 and my room is 7.3 m x 3.7 m (24 foot by 12 foot in old money!) with TV slap bang in the middle of the long side.