YAMAHA / YBB-621 tuba 4-piston

Bb tuba by YAMAHA. Four-piston, front action valve system. The large bore produces a powerful resonance and a clear, solid tone. The sound is even and even, and the sound is excellent.

■Bb tuba
4-piston
Yellow Brass
■Clear lacquer finish

Bell size: 366mm
Bore size: 17.5mm (1st-3rd)/18.5mm (4th)

Warranty
The warranty does not cover any of the following cases: ・ Repair with replacement of parts (repair with replacement of parts)

Repairs that require the replacement of parts (tampos, corks, felts, springs, screws, etc.)
Cracked or broken tubes
Failure due to lack of or inadequate maintenance, or failure caused by the customer's negligence (bent keys, etc.)
　Wind instruments are difficult to care for, and often the instruments are broken unexpectedly.
・Plating or paint peeling or discoloration caused by usage or environment.
Tampo alignment or mating adjustment after 30 days of purchase.