When investing in a professional horn for long-term use, you shouldn’t have to compromise. Choose a horn that checks all your boxes! Willson continues a legacy of excellent craftsmanship with the Q90S professional compensating euphonium, a top-tier horn for advanced players and gigging professionals. Featuring an 11.5-inch upright yellow brass bell, a compensating system, and three top-action valves with a fourth side-action valve, the Q90S has all the details necessary to take your performance to the next level. Seasoned euphonium players at Sweetwater note that the Q90S not only bears a resemblance to Willson’s best-selling 2900S euphonium, but it also plays just as beautifully! For premium performance at an outstanding value, choose the Willson Q90S professional compensating euphonium.
- Bb professional euphonium with compensating system
- Nickel leadpipe incorporates a large shank mouthpiece receiver
- 11.5-inch upright yellow brass bell projects your sound upward and outward
- 0.591–0.669-inch bore facilitates robust sound with plenty of dynamic flexibility
- 4 corrosion-resistant stainless steel pistons (3 top-action and 1 side-action)
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Condition | Brand New (New) Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more |
|---|---|
| Brand | |
| Model |
|
| Finish |
|
| Categories |
Product safety information may be available here.

