Hey all i am new here and am looking for help picking a subwoofer.I'm looking for a musical sub since i have a 2 channel set up, i also watch movies but only with 2 channels and no surround.My music system is an Adcom GTP 602 Tuner/Preamp,a Proton D1200 amp and a pair of Dynaudio Audience 72se loudspeakers.The sound is amazing,and i run the dyns with the port plugs in because they sound more accurate to me.I want a sub to fill the lower octaves and reduce strain on the main speakers.My main concern is sound quality,and i want a sub thats fast,clean,and that has active low and high pass filters.Right now i have my eye on a Dynaudio sub 250 and was wondering if you guys have any other ideas.Thanks.Jim