I know this thread hasn't been touched for a few weeks but thought I would throw my hat in the ring with a few comments.
I recently sold my beloved 15 year old Dynaudio Contour 1.3 MkIIs after a few 'domestic issues'. Under some pressure to get something smaller I have listened to a few speakers over the past few months, including PMC Twenty.21s.
(I have listened to my Dyns side by side in the past with some very expensive speakers c. £3-4K including Vienna Acoustics and PMCs - I never took them away again thinking I was missing something; they were that good).
Anyway I listened to some LS50s the other week on the end of a cheapish Arcam system fed by Tidal and was astounded by just how good they sounded. Their clarity and drive was amazing, and they were on some cheapish stands (B&Ws) and placed somewhat ad-hoc near a rear wall.
The upshot is I have a Titanium pair on order (they look and sound the best!) to go on the end of my kit. Despite the advice to listen at home etc etc I feel pretty comfortable with my decision and absolutely confident that they will sound at least as good as the old Dynaudios they will replace.