- .547" Dual Bore
- Semi Open Wrap F Attachment
- 8.5" Yellow Brass Bell
- Reso-Tempered Bell
- Nickel-Silver Handslide
- Yellow Brass Tuning Slide
- Polished Lightweight Lacquer
- B.A.C. Pro-Line Series Deluxe Case
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Since our humble beginnings, B.A.C. has always been held in high regard by professional trombonists the world over. While we strive to maintain a high standard across the board with all of the instruments we offer, we recognize the responsibility we have to continue raising the bar for the trombone community. We were pleased to release two new and incredibly exciting models of trombone in 2016. While the 500 Select Series trombones are similar in design aesthetically, they provide two unique solutions to a wide variety of musicians. The BAC-SL-550 provides similar advantages however features a large bore, (.547") for the a stronger musician, who would prefer a larger more symphonic feel.Â