Yamaha YSL-691 Professional Small-Bore Jazz Tenor Trombone — Used SN: 201765

Brand: Yamaha® Global

Model: YSL-691 Professional Series

Serial Number: 201765

Instrument Type: Small-to-Medium Bore Jazz Tenor Trombone

Key: $\text{B}\flat$

Bore Size: .508" Medium-Small Bore

Bell Specification: 8" One-Piece Hand-Hammered Yellow Brass Bell

Slide Composition: Chrome-Plated Nickel Silver Inner Slide / Ultralightweight Nickel Outer Slide

Finish: Clear Gold Lacquer

Condition Matrix: Used

• Mechanical & Aesthetic Status: Fair Condition (Shows expected player road wear, finish aging, and standard signs of use; see details below).
• Case Status: NO CASE INCLUDED (This trombone will be shipped bare/securely boxed; buyer must supply their own case).Included Accessories: Vintage King 7C Small-Shank Mouthpiece Assembly

Up for sale is a pre-owned Yamaha YSL-691 Professional Small-Bore Tenor Trombone, bearing Serial Number: 201765. Historically celebrated by commercial musicians, big band soloists, and studio session players as one of the finest jazz trombones ever produced, the discontinued YSL-691 is highly sought after for its lightning-fast response, exceptional core flexibility, and vibrant projection. Engineered around an optimized .508" bore layout paired with a responsive 8" hand-hammered bell, this horn perfectly slots the gap between laser-focused lead jazz horns and deep orchestral medium-bore instruments.

This specific instrument is in Fair Player Condition—showing the honest physical character of a reliable studio and stage companion. It is an exceptional value for a high-school jazz band student looking to step up to a professional Japanese-made horn, a gigging commercial player, or a brass enthusiast looking for an elite-tier canvas.

🚨 CRUCIAL BUYING DISCLOSURES: NO CASE & FAIR CONDITION STATUS

To guarantee a perfectly transparent and smooth buying experience, please review the following operational notes before purchasing:

1. No Storage Case Included: This listing is for the trombone body assembly, hand slide, and mouthpiece only. It does NOT come with a hard or soft case. It will be professionally packed inside an oversized, shock-isolated shipping container to guarantee safety during transit, but you will need to supply your own case for local gig transport.
2. Fair Cosmetic & Play Wear Status: As a performance-used horn, this instrument features expected life wear. Expect to see visible lacquer wear, surface scratches, minor finish scuffs at the high-friction hand grips, and small dings/surface tarnish appropriate for an active instrument of this vintage era. Please inspect the listing photos closely to appreciate its authentic road-tested aesthetic.

Key Acoustic & Hardware Attributes

• Professional .508" Jazz Architecture: Offers an incredibly nimble, free-blowing response that allows you to easily pop out fast lead lines, clean note articulations, and wide-interval dynamic shifts.
• 8" One-Piece Yellow Brass Bell: Delivers a warm, deep, and remarkably colorful tonal foundation that naturally blends in a brass section while offering plenty of cutting edge when pushed solo.
• Fixed Integrated Balance Weight: Features Yamaha's precision-engineered factory counterweight on the tuning slide brace. This shifts the physical balance back toward the player's shoulder, drastically reducing hand and wrist fatigue during long rehearsals.
• King 7C Mouthpiece Included: Outfitted with a versatile small-shank King 7C mouthpiece, providing a comfortable rim and brilliant cup depth that pairs excellently with small-bore tenor horns to maximize upper-register response.

What’s Included

• (1) Yamaha YSL-691 Professional Tenor Trombone Bell Section (S/N: 201765)
• (1) Yamaha YSL-691 Ultralightweight Outer/Inner Hand Slide Assembly
• (1) Vintage King 7C Small-Shank Mouthpiece
• Hardshell Case

Pro-Tier High-Protection Heavy-Duty Shipping (Case-Free Protocol)

• Hand Slide Interlocking Isolation: Because this instrument is being shipped without a case, maximum structural packing care is enforced. The inner and outer hand slides will be safely locked down, padded internally, and encased inside a custom rigid protective cardboard support splint to completely prevent tracking misalignment or impact flex during transit.