YSL 640 Yamaha

The YSL-640 has a continuous taper bell section that improves intonation with even resistance in all registers.

The chrome-plated, nickel silver, drawn, inner slide is very durable and has a quick, sensitive response.

The one-piece, drawn, yellow brass outer slide maintains an accurate diameter throughout its length, and this type of construction ensures airtightness, smooth action, exceptional durability, and adds resonance to the sound.

Specially designed one-piece inner slide stockings guarantee airtight slide construction, and offer smoother slide action and better alignment, even in the extended 6th and 7th positions.

Long-lasting nickel-silver tubular braces contribute to the stability of the slide and enhance smooth slide action.

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.

Yamaha trombones have mouthpipes featuring special acoustic designs allowing for precise intonation and greater blowing control.

Large rotor on "F" attachment, with a mechanical linkage, allows for smooth transitions from the B^b to F side with less resistance.

The hand-lapped rotary valve provides airtight, light action, allowing quick and smooth valve switching.