Yamaha BBb tubas feature hand-lapped pistons and hand-lapped tuning slides for smooth, airtight action. The clear epoxy finish and gold brass leadpipe will provide durable protection against corrosion. A fourth valve extends the range of this step-up model.
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-lapp...