The YSL-891Z was developed with Wycliffe Gordon and Andy Martin. It's a new small bore trombone somewhat reminiscent of the classic King design. It features a .508" bore brass slide and an 8" hand-hammered brass bell.
The YSL-891Z comes with 2 interchangeable leadpipes. These allow you to easily tune the instrument's response to your liking. The NY leadpipe is longer and was developed with Wycliffe Gordon while the LA leadpipe is shorter and was developed with Andy Martin.
The new balancer found on the YSL-891Z perfectly proportions the instrument's weight. And it looks like Batman.
The chrome-plated nickel-silver drawn inner slide is very durable and has a quick, sensitive response. In addition, it is a one-piece drawn slide. The drawing of the tubes is absolutely perfect, with no waviness or aberrations.
The one-piece, drawn, brass outer slide maintains an accurate diameter throughout its length, and this type of construction ensures airtightness, smooth action, and exceptional durability. The outer slide is fit with extremely close tolerances making the horn respond quickly and effortlessly. The inner and outer slides are built in matched pairs for a perfect fit together from the beginning.
A one-piece bell has an axial (lengthwise) seam, making it a continuous extension of the instrument's material. This results in pure, uniform resonance and superior tone. A hammered yellow brass bell produces a pure and perfectly-balanced tone with quick response and extra presence due to advanced manufacturing techniques.
Hand-lapping slides ensures an absolutely perfect fit and seal between the slide parts. Such a perfect fit helps to achieve smooth air flow and smooth action and improve the response and intonation of the instrument.
Perfectly rounded tubing results in less turbulence and a smoother air flow, thus allowing for an excellent scale and reduced resistance.
A high-energy laser fuses the brass together for a virtually seamless bell which allows continuous even vibrations.
The unique slide lock design on all Yamaha trombones keeps the slide locked in place and keeps it from accidentally falling.
The large, easy-to-hold nickel silver bracing guards against possible slide damage if the instrument is dropped and also lessens fatigue while playing.
Wycliffe Gordon playing the Yamaha 891Z trombone: