The Usher S 520 are good speakers. With a small mid woofer that was tuned to go down to 50Hz, the midrange should be a bit recessed (no surprise here)
Some of these listed below deserve an audition
Usher X 718
Totem Rainmaker, Totem Mani 2
Dynaudio DM 2/10, DM 2/8 and DM 2/7
Dynaudio Focus 110, 140, 220
Dynaudio Excite X 12, X 16, X 32
Dynaudio Audience 52,72, and 82
PSB Image B6, Image T5, T6, PSB Image T45, T55, and T65
Vandersteen
Some Amphion models
Some Dali models
Dali makes some decent speakers too but IMO Dynaudio is usually better than Dali. You do need a decent sub for most of standmount models regardless of brands.
Some of these listed below deserve an audition
Usher X 718
Totem Rainmaker, Totem Mani 2
Dynaudio DM 2/10, DM 2/8 and DM 2/7
Dynaudio Focus 110, 140, 220
Dynaudio Excite X 12, X 16, X 32
Dynaudio Audience 52,72, and 82
PSB Image B6, Image T5, T6, PSB Image T45, T55, and T65
Vandersteen
Some Amphion models
Some Dali models
Dali makes some decent speakers too but IMO Dynaudio is usually better than Dali. You do need a decent sub for most of standmount models regardless of brands.