Have had dqm 9, 9c, 905. Dq 10, 20, 28 and another that escapes me now.
Dq 10 when combined with a nice subwoofer , speakers positioned well, some real magic can happen - especially with vocals, subwoofer mandatory for depth.
Dq 28, ok for an office, small room , needs low end help though
Dq 20, spacious sound and very smooth. Sound great, but do nothing amazing inmho. Would have kept them, but I have other rear reflection speakers that I prefer.
Dqm 9c, fun detailed and musical. Only gave them up because they are a bit too small for my room.
905 - very nice looking and love the wood accent on the grill, but I found them to be lackluster in my setting, but better than most speakers of that size offered locally.
Dqm9, accurate, not bloated, balanced. No fatigue. Outstanding build quality, absolutely superior to comparable monitors of similair size / specs that I have heard such as hpm100, L100, 690, C2. I have the veneer offering now, but wish I still had the Nextell version I sold years ago. There is a difference ; not huge , but noticeable.
YMMV of course