The Yamaha YSL-622G Bass Trombone is regarded as the original Doug Yeo signature design that helped define Yamaha’s reputation for professional orchestral and symphonic bass trombones.
This archived example featured a 9.5-inch one-piece gold-brass bell, giving it a rich, dark orchestral tone prized by serious players.
It came with dual dependent rotary valves, allowing standard Bb/F operation and an added low register extension.
The second valve could be removed, reducing weight and transforming the horn into a lighter, more agile single-valve bass trombone when desired.
A true player’s instrument, it included the factory D-tuning slide and its original accessory pack, still unopened at the time of sale.
The slide was excellent — smooth, aligned, and free-blowing — with no service needs.
Aside from a barely visible repaired crease on the bell flare, the horn remained in top structural and playing condition.
That cosmetic mark had no impact on the horn’s resonance or response.
The YSL-622G became a favorite among professional orchestral bass trombonists for its open blow, dark core sound, and easy low-register response, yet it was also responsive enough for versatile all-around bass work in concert band and large ensemble settings.
Many players still seek these early models for their combination of projection, warm timbre, and dependable Yamaha build quality.
This particular instrument has been sold and now appears in our Archive of Sold Instruments as a reference for musicians, collectors, and historians studying the lineage of professional-level Yamaha bass trombones.
FAQ
What distinguishes the Yamaha YSL-622G from the later Xeno Doug Yeo models?
The 622G was the original design and retains a slightly more classic Yamaha orchestral character — dark, open, and straightforward.
The modern Xeno-series Yeo model adds refinements to the valve wrap and bracing but preserves the same basic playing concept.
Why is the removable second valve valued by some bass trombone players?
For certain repertoire or when endurance is a concern, removing the second valve reduces weight and resistance, creating a freer, more compact feel similar to a classic single-valve bass trombone.
What role does the gold-brass bell play in the sound?
Gold brass (with higher copper content) contributes warmth and depth, making the horn well-suited to large symphonic or concert-band sections where a darker blend is preferred.
Is the YSL-622G still competitive with modern professional bass trombones?
Yes. Well-maintained examples continue to deliver excellent response, reliable intonation, and a broad, resonant orchestral voice — qualities still valued by advanced students and seasoned pros alike.
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