I've had Logan electrostatic speakers since the late 1990's. Owned the ESL-X's for about 2 years and OH MY ! Once you get the "sweet spot" dialed in, I don't know of any equally priced speaker that can come close to the realism and the soundstage these speakers project. My "headend" is: Rotel RC-1590 pre-amp, Rotel RB-1582MKII amp, Marantz SA-KI Ruby SACD player and SVS SB-3000 sub. They match up very well with the ESL-X's. A couple of hints for people considering these: In my modest room, they work best when the front panels are about 29" from the front wall. I also found that removing the rear grills improved the bass.