My trusty and beloved B&W ASW675 is on its way out to make way for a sub with the additional feature of speaker inputs for my stereo system. The choice has been narrowed down to these two subs. I know you can get more for your money in the sub world, but size constraints mean these are pretty much the choices I'm left with (the sub has to be under 400mm high.) Now the ASW675 does a great job with movies, and I'm not looking for anything more earthshaking than that little beast, but seeing as I'm buying the next sub with music in mind, I'd like to canvass opinion on people's thoughts about the B&W PV1 and the new Rel R305 and their respective abilities with music. Bass doesn't need to be ear shattering and innard moving, but I need it to reach down, (hopefully as low as the ASW675,) but most inportantly I also want it to be musical. And by that, I mean I don't want one note bass that thunders along. I love bass, but I prefer the quick, rapid-firing, agile type of bass to the slower bass that dishes out more impact. Basically, if I unplug my speakers and leave just the bass running, I'd like to hear a tune still playing, rather than a series of dull and monotone thuds. Which of these two is likely to give me that best, in our esteemed forum members opinions?