Yamaha Professional Bb Tuba YBB623S

Every aspect of this tuba has been refined to achieve the finest tone and playability. From the figure of the tubes to material thickness, every detail of conventional tuba design has been reexamined and refined to achieve a new level of Yamaha tuba performance. 

The YBB623 resolves issues that make low-register playing difficult in conventional tuba designs, offering easy playability with a deep, warm timbre.

Floating Leadpipe: The instrument's "floating" leadpipe is not soldered to the bell, leaving the bell free to resonate naturally and contribute to fast. The leadpipe angle and overall body layout have also been revised so that the instrument can be held comfortably with the left arm while the right-hand fingers easily reach the valve buttons. No unnecessary stress is placed on the body so that breathing is much smoother and easier than with less refined designs.

Secondary Main Tuning Slide: The YBB623 and YCB623 are the first tubas in the world to provide a Secondary main tuning slide. This provides a greater tuning range, and solves a number of common problems such as extending the main slide too far in the summer temperatures causing it to fall, or the pitch being too low and out of adjustment range in the winter months. The Secondary main tuning slide can be adjusted while playing, and it is possible to make fine pitch adjustments when no valves are pressed.

Multi Shank Receiver: The mouthpiece receiver is a unique design that accepts American and European shank mouthpieces without the need for an adapter.

Thin Material Body: Body material thickness from the bell to the top bow has been made thinner than normal to improve response and tone.

Metal Valve Buttons, Vented Pistons and 3rd Valve Water Key: These large, contoured valve buttons provide a fitted fell for smooth, effortless valve operation. The valves are also laid out to match the curve of the player's hand, minimizing stress on the arms and body. A water key had been provided in the 3rd valve bypass tube to facilitate quick drainage while playing. This eliminates the need to place the instrument on the floor and remove the 3rd slide, allowing the player to focus on the music and perform with confidence. Vent holes in the pistons keep the pressure in the tubing constant so that the instrument's tuning slides can be operated smoothly without having to press the pistons, making it easier to make fine tuning slide adjustments while playing.