Best value for money Yamaha professional horn. I have also a laquered model (8310Z).
This is a little bit brigter (in the upper register) and i think a bit "havyer" than the laquer (maybe >10%, not more).
Great extremelly free blowing feel, flexible, ideal for all around use (from orchestra to small jazz groups and live bands), easy to blend in secctions, great projection and multi-colorfull sound at studio recording sessions.