Backbore for tenor trombone
- Symphony tenor
- With a big shank
- Standard model
- 6.76 mm bore
- Silver-plated
- There are three sizes of the ST Backbore, numbered from 1-3, with 1 being the smallest and 3 being the largest.
![](https://soundsmag.com/wp-content/uploads/2022/07/warburton-tenor-backbore-3-st-large_62d119a0105f7.jpeg 600w, https://soundsmag.com/wp-content/uploads/2022/07/warburton-tenor-backbore-3-st-large_62d119a0105f7-300x300.jpeg 300w, https://soundsmag.com/wp-content/uploads/2022/07/warburton-tenor-backbore-3-st-large_62d119a0105f7-150x150.jpeg 150w, https://soundsmag.com/wp-content/uploads/2022/07/warburton-tenor-backbore-3-st-large_62d119a0105f7-100x100.jpeg 100w)
Warburton Tenor Backbore 3 ST large
SOUND
QUALITY
FEATURES
VALUE FOR MONEY
EASE OF USE
4.7