Features
Inner slide
The chrome-plated, nickel-silver, drawn inner slide is very durable and has a quick, sensitive response.
Features
Inner slide
The chrome-plated, nickel-silver, drawn inner slide is very durable and has a quick, sensitive response.
Outer slide
The one-piece, drawn, yellow brass outer slide maintains an accurate diameter throughout its length, and this type of construction ensures airtightness, smooth action, and exceptional durability and offers improved response.
Inner slide stockings
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.
Tubular braces
Long-lasting nickel-silver tubular braces contribute to the stability of the slide and enhance smooth slide action.
Pressure formed tubing
Perfectly rounded tubing results in less turbulence and a smoother air flow, thus allowing for an excellent scale and reduced resistance.
Laser-fused pluzuma welded bell
A high-energy laser fuses the brass together for a virtually seamless bell which allows continuous even vibrations.
Slide lock
The unique slide lock design on all Yamaha trombones keeps the slide locked in place and keeps it from accidentally falling.
Bracing
The large, easy-to-hold, nickel-silver bracing guards against possible slide damage if the instrument is dropped and also lessens fatigue while playing.
Mouthpipe
Yamaha trombones have mouthpipes featuring special acoustic designs allowing for precise intonation and greater blowing control.
Hand-hammered one-piece bell
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 gold brass bell produces a slightly more broad and rich, yet perfectly-balanced tone with quick response and extra presence due to advanced manufacturing techniques.
Hand-lapped valves and tuning slides
Hand-lapping slides and valves 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.
Rotary valves
The YBL-631H has two hand-lapped large rotary valves to ensure less resistance and quicker response in the "F" section.
Open wrap
The open wrap design of the YBL-613H improves the response and feel of the instrument.
Heavy wall construction
Because of its heavy wall construction, the tone of the YBL-613H holds up in any playing situation.
Technology
Audio & Video
Specs
Specifications
| Level | Symphony Bass | |
|---|---|---|
| Key | Bb / F / Eb / G & Bb / F / D / Gb |
|
| Bore | LL: 0.563" | |
| Bell Diameter | 9 1/2" | |
| Shank | Large | |
| Leadpipe | Gold brass; Fixed | |
| Body Material | Yellow brass | |
| Bell Material | Gold brass; One-piece; Hand Hammered | |
| Weight | Heavy | |
| Finish | Clear epoxy lacquer | |
| Inner Slide | Chrome-plated nickel silver; Drawn | |
| Outer Slide | Yellow brass; Drawn; One-piece | |
| Mouthpiece | 59GPR | |
| Features | D slide included; Heavy wall construction | |
| Pistons/Rotors | Two; In-Line; Independent; Hand lapped; Mechanical linkage | |
| Options | N/A | |


