My main listening and viewing room is some 3.7 x 5.5 metres, 2.5 something high. But to make matters worse it's wooden walls, wooden floor and wooden ceiling. It does feature a panoramic window to one side though and then there's a fairly standard window about to be blocked off. Now this being a wooden room rules out DF and I could basically use as much push as there are stars in the sky, the room being prone to compress quite heavily, even with some acoustic treatment used. Thus my plan is going w. more slammy and less rumbly subs (if that makes sense), or perhaps even just the one sub, space being somewhat ample but slightly restricted to position two subs ideally or otherwise symmetrically in the room. Never tried either brand, although some features of my Jamos are similar or identical to the corresponding Klipsch subs. The XTZ seems to offer more tweakability, a more even response and a cleaner representation. In my book qualities I appreciate highly - under normal circumstances, at least. The Klipsch on the other hand seem to hit harder. But on the down side the Klipsch is quite peaky at around 70Hz which may work against the in-room acoustic properties. I'll explain below: My room having a node at 90Hz at present I'm experimenting with rolling back on the x-over of the sub to 80Hz and have the internal x-over of the receiver at 100Hz to create a deliberate dip in the response. I suppose I could do with some DSP thing to handle the calibration for me. If it matters: * Receiver is a Marantz 5000-series, to be upgraded to a 7000-series soon. * Speakers are Boston Acoustics VRs, except for surrounds which are Energy RV dipoles. * Requirements are: To do music and movies equally well To be capable of going below 20Hz To be capable of achieving room compression (used to have an SVS PB1000 that was a bit muddy but did this rather well). To put out a nuanced and (fairly) detailed lowend, to avoid monotony.