I was going to post this in the "Music" forum, but since I reference the Sierra 2s, below, I'll post here and keep the discussion rolling. For those interested in classical recordings, if you to want hear stunning musical engineering, look no further than Reference Recording's Berlioz Symphonie Fantastique. The dynamic range, depth and width of the soundstage, separation of instruments and realism will simply astound you. Truly a speaker-disappearing act. I'd put it up there with Jazz at the Pawnshop. If you don't agree after hearing this recording, let me know what I'm missing. I don't own Sierra 2s, but have auditioned them at Ascend Acoustics, listening to this recording. Superb. Speakers were just out of my price range.