The Yamaha YBL-612G is a vintage professional-grade dependent valve bass trombone that was manufactured between 1985–1991 and has become a respected model among advancing players and collectors alike. This particular example is in excellent playing condition, fully cleaned, serviced, and ready to go.
It features a 10" gold brass bell that provides a broad, resonant tone with great projection. The dependent rotor valve section includes multiple tuning slides for Eb and D setups, giving the player expanded low register flexibility — including the ability to play down to pedal D when using the second valve in combination with the F.
The slide has been freshly aligned and optimized for quick response and easy articulation. Valve throw is light and even, and the trigger range feels especially open. The instrument is powerful in the low register yet remarkably easy to control. A few minor dings in the tuning slide area were carefully removed, and the slides were re-lacquered for a clean, professional appearance.
This 612G is a great option for players transitioning into bass trombone from large-bore tenor, or anyone needing a lighter-weight double valve horn without the complexity of an independent system. Ideal for big band, commercial, pit/show work, and wind ensemble playing.
Includes the original Yamaha case and a Bach 1G mouthpiece — a classic pairing for powerful tone production. A modern equivalent Yamaha bass trombone with similar specs retails over $3600 today, making this a high-value choice for serious musicians.
What is the difference between dependent and independent valve systems?
In a dependent system like the YBL-612G, the second valve (Eb/D) only engages when the first valve (F) is already engaged. This setup is lighter and more compact, often preferred for its simple airflow and reduced weight compared to an independent system, where both valves can be used separately.
What tuning options are included on this Yamaha bass trombone?
This model comes with multiple tuning slides for the second rotor, giving the player the choice between Eb and D low range configurations. With the correct slide and valve combinations, the horn can play easily down to pedal D, and in the right hands, even low C with careful position adjustments.
Is the Yamaha YBL-612G still being produced?
No. The 612G was discontinued in the early 1990s. It has since become a desirable vintage Yamaha model due to its balance, playability, and excellent valve system. Newer Yamaha bass models with similar specs are available today, but many players prefer the 612G for its lighter feel and unique tonal qualities.
This Yamaha 612G has been sold and is now displayed here as part of our Historical Archive for musicians and collectors.
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