Serial # 420705
Intonation results taken when playing loud and only moderate lipping. Above high B-flat Lingot doesn't work, so above that is with an Quicktune electronic tuner, so results are less precise.
I am using the same Vandoren SL3 Optimum mouthpiece and Legere 3 1/4 reed.
Intonation summary: I always considered the intonation of this instrument— which I play nearly every Sunday in church, to be good. I am disappointed by the results. Our piano at church is a hair sharp. I redid the intonation results to compare with the Opus. Please see the results there.
Key work quality: sturdy.
This sax is most appropriate for: Anyone, from beginning to advanced.