Yamaha YBB631S BBb Professional Compensating Tuba (With Case)
A professional tuba, durable and attractive, featuring smooth action.
Monel pistons
Monel pistons are resistant to corrosion and are an ideal choice for professional baritone pistons which must retain precise fit and smooth action over many years.
Hand-lapped pistons
Hand-lapping is a time-consuming finishing process which results in superior valve fit for noiseless, responsive action and easy tone changes.
Hand-lapped slides
Hand-lapping achieves the perfect balance between airtightness and smooth action.
Compensating system
The compensating system found on the YBB-631S ensures accurate tuning on all notes throughout the instrument's range – particularly in the difficult low range.
- Level: Professional Tuba
- Key: BBb
- Size: 4/4
- Bore 0.689" – 0.768" dual bore
- Bell Diameter: 17 1/2" upright bell
- Leadpipe Material: Gold brass
- Body/Bell Material: Yellow brass
- Finish: Silver
- Mouthpiece: 67
- Pistons/Valves: (3) Monel, top action; (1) Monel, side action
Yamaha YBB631S BBb Professional Compensating Tuba (With Case)
The manufacturer's warranty covers parts for five years and labor for five years from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.
