Yamaha YBL-835 Bb/F/Gb Professional Bass Trombone
The YBL-835 has evolved to deliver the power and performance that modern music demands. It has an open playing feel and produces rich, authoritative tone that responds ideally to player control.
The YBL-835 has been refined to deliver world-class tone and playability in performance situations ranging from solo to orchestral.
The instrument features a redesigned slide reciever which used to include an internal protusion that would tighten the sound of the instrument. This has been done away with and the YBL-835 makes it possible to deliver a higher volume, powerful sound with excellent response.
The Shape of the Rotory valve ports have changed. A section has been removed allowing for a more open blowing valve, keeping the low end open while maintaing the flexibilty and focus of the valve.
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| Key | Bb/F/Gb/D | |
| Bell Material | Yellow brass | |
| Bell Diameter | 241mm (9 1/2") | |
| Bore Size | LL: 14.3mm (0.563") | |
| Outer Slide Material | Yellow brass | |
| Inner Slide Material | Nickel silver | |
| Finish | Clear lacquer | |
| Mouthpiece | BL-61D4L | |
| Case | Included | |