Level
The models working players, college students and serious high schoolers use. They're built to tighter tolerances with better materials and keywork, and many of them have long production runs, so used ones turn up in every condition. Check the version and the service history, since an old pro horn that's been overhauled can be a better buy than a tired newer one.
9 models we cover.

Bach · Trumpet
Professional180S37 · Stradivarius
$1,725–$2,225 typical ask
118 on eBay
Bach · Trombone
Professional36B · Stradivarius
$1,750–$3,850 typical ask
18 on eBay

Yamaha · Trumpet
ProfessionalYTR-8335II · Xeno
$1,900–$2,425 typical ask
121 on eBay

Yamaha · Saxophone
ProfessionalYAS-62 · 62 Series
$2,500–$3,275 typical ask
146 on eBay
Yamaha · Clarinet
ProfessionalYCL-650
$900–$1,550 typical ask
72 on eBay
Buffet Crampon · Clarinet
ProfessionalR13
$1,800–$2,450 typical ask
88 on eBay
Conn-Selmer · Trombone
Professional88H · Symphony
$2,750–$3,900 typical ask
23 on eBay
Conn-Selmer · Trombone
Professional2B · Legend
$2,400–$3,050 typical ask
25 on eBay
Gemeinhardt · Flute
Professional33OSB · 33 series
$1,550–$2,700 typical ask
4 on eBay