'Set up' means different things to different people.
For a student -- are all the notes playable from top to bottom?
For a discriminating pro -- in addition to the above, are the key heights optimal, is the timbre even across the entire range, has all deadening and superfluous cork and felt and metal gizmos been removed from the horn, have all the tone holes been deburred, all pads cleaned with 'anti-stick', has the neck been properly fitted to the horn, is the mouthpiece fitted properly to the cork, etc...
Does this help? Some folks just want a playable horn. Yamahas reportedly come out very good from the factory, so chances are you won't have to pay someone $200 for a set up.
For a student -- are all the notes playable from top to bottom?
For a discriminating pro -- in addition to the above, are the key heights optimal, is the timbre even across the entire range, has all deadening and superfluous cork and felt and metal gizmos been removed from the horn, have all the tone holes been deburred, all pads cleaned with 'anti-stick', has the neck been properly fitted to the horn, is the mouthpiece fitted properly to the cork, etc...
Does this help? Some folks just want a playable horn. Yamahas reportedly come out very good from the factory, so chances are you won't have to pay someone $200 for a set up.