Willson Q90S Euphonium Overview
The Willson Q90S belongs to the company's Q Series, pairing Willson's established euphonium-making tradition with a professional 3+1 compensating design intended for demanding ensemble and solo work. Its design supports the centered response, tonal breadth, and low-register control sought by serious euphonium players, while the silver-plated configuration carries the Q90S designation.
Willson Q90S Euphonium Specifications
- Key: Bb
- Valve Configuration: 3 top-action pistons and 1 side-action compensating piston
- Bore Size: .590 inch (15 mm)
- Bell Diameter: 11.5 inches (290 mm)
- Bell Material: One-piece seamless yellow brass
- Finish: Silver plate
- Case: Willson-branded padded gig bag with shoulder strap
- Accessories: Laskey 59D large-shank mouthpiece, Ultra-Pure valve oil, tuning-slide lubricant, and polish cloth
- Serial Number: Q10122
Condition & Setup
This lightly used euphonium is in excellent playing order and has been professionally serviced, set up, and play-tested. The silver-plated surfaces remain bright overall, with light hairline scratches and handling marks around portions of the valve section and lower bow. Minor localized scuffing is present along the lower edge of the bell rim.
Who the Q90S Euphonium Is For
The Q90S is best suited to advanced students, collegiate musicians, professional players, and serious brass band or concert band performers seeking a full-size compensating euphonium. Its 3+1 system provides the extended low-register facility and intonation options expected in advanced euphonium literature, making it a practical choice for ensemble, solo, audition, and teaching work.
Common Questions About the Willson Q90S
What does the compensating system contribute?
The compensating system redirects air through additional tubing when the fourth valve is combined with other valves. This supports more accurate intonation and a complete chromatic range in the euphonium's low register.
How does the Q90S fit within Willson's euphonium range?
The Q90 is Willson's Q-Series 3+1 compensating euphonium, positioned as a performance-focused instrument for advanced and professional use. The Q90S designation identifies the silver-plated version.
What should a player expect from the bore and bell dimensions?
The .590-inch bore and 11.5-inch upright bell place the Q90S within the familiar full-size compensating euphonium format. This combination is designed to balance tonal breadth, projection, and manageable resistance across the instrument's range.
We are proud to be an authorized Willson dealer
In stock! Ships within 1-2 business days
Financing available. Apply directly at checkout
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Willson Q90S Q-Series Professional Bb Euphonium in Silver Plate
Willson Q90S Euphonium Overview
The Willson Q90S belongs to the company's Q Series, pairing Willson's established euphonium-making tradition with a professional 3+1 compensating design intended for demanding ensemble and solo work. Its design supports the centered response, tonal breadth, and low-register control sought by serious euphonium players, while the silver-plated configuration carries the Q90S designation.
Willson Q90S Euphonium Specifications
- Key: Bb
- Valve Configuration: 3 top-action pistons and 1 side-action compensating piston
- Bore Size: .590 inch (15 mm)
- Bell Diameter: 11.5 inches (290 mm)
- Bell Material: One-piece seamless yellow brass
- Finish: Silver plate
- Case: Willson-branded padded gig bag with shoulder strap
- Accessories: Laskey 59D large-shank mouthpiece, Ultra-Pure valve oil, tuning-slide lubricant, and polish cloth
- Serial Number: Q10122
Condition & Setup
This lightly used euphonium is in excellent playing order and has been professionally serviced, set up, and play-tested. The silver-plated surfaces remain bright overall, with light hairline scratches and handling marks around portions of the valve section and lower bow. Minor localized scuffing is present along the lower edge of the bell rim.
Who the Q90S Euphonium Is For
The Q90S is best suited to advanced students, collegiate musicians, professional players, and serious brass band or concert band performers seeking a full-size compensating euphonium. Its 3+1 system provides the extended low-register facility and intonation options expected in advanced euphonium literature, making it a practical choice for ensemble, solo, audition, and teaching work.
Common Questions About the Willson Q90S
What does the compensating system contribute?
The compensating system redirects air through additional tubing when the fourth valve is combined with other valves. This supports more accurate intonation and a complete chromatic range in the euphonium's low register.
How does the Q90S fit within Willson's euphonium range?
The Q90 is Willson's Q-Series 3+1 compensating euphonium, positioned as a performance-focused instrument for advanced and professional use. The Q90S designation identifies the silver-plated version.
What should a player expect from the bore and bell dimensions?
The .590-inch bore and 11.5-inch upright bell place the Q90S within the familiar full-size compensating euphonium format. This combination is designed to balance tonal breadth, projection, and manageable resistance across the instrument's range.
We are proud to be an authorized Willson dealer
Pairs well with
In stock! Ships within 1-2 business days
Financing available. Apply directly at checkout
30-day risk-free trial
2-Year Warranty
Complimentary shipping for all U.S. orders over $99
Willson Q90S Q-Series Professional Bb Euphonium in Silver Plate
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
Orders valued over $99 ship via FedEx 2-Day within the U.S. and via DHL internationally. A physical address (no P.O. Boxes) and signature are required. Smaller accessories ship via USPS (2–5 day service) and do not require a signature if valued under $99. Please see our FAQ for additional details.
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Return Policy
We offer an unconditional 30-day return policy to ensure you’re completely satisfied. If you’re unhappy for any reason, return the item for a full refund or full exchange credit (reeds and other consumables are non-returnable once opened). Every instrument we sell is guaranteed to be free of mechanical defects—if an issue arises, contact us and we’ll either reimburse a local repair or provide a prepaid return label for repair, exchange, or refund. If you simply change your mind, you may still return the item for a full refund, but return shipping costs are the customer’s responsibility unless free returns were purchased through Redo at checkout. Please see our FAQ for additional details.
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Shop Warranty:
Brand new items are covered by the full manufacturer’s warranty unless otherwise noted (see the individual maker for details). Open box/refurbished, used, and vintage items include a two-year warranty serviced by our in-house repair shop, and we guarantee every instrument will be free of mechanical defects. Warranty coverage does not include damage from accident, misuse, negligence, improper operation, unauthorized alterations or removed serial numbers, normal wear and routine maintenance, environmental damage (including perspiration, corrosion, or extreme temperature and humidity), lacquer or plating wear, or consumable parts such as springs, pads, and felts. Please see our FAQ for additional details.