Yamaha YBL-421G
Bb/F large-bore bass trombone · intermediate · current
Intermediate single-rotor bass trombone; gold-brass bell.
| Type | bass |
|---|---|
| Key | Bb/F |
| Bore class | large |
| Bore size | .563″ |
| Valve configuration | F attachment |
| Valves | 1 |
| Rotor type | traditional rotary |
| Bell diameter | 9.5″ |
| Bell material | rose/gold brass |
| Bell construction | two-piece |
| Slide | outer yellow brass, inner chrome-plated nickel silver |
| Leadpipe | fixed |
| Finish | clear lacquer |
| Weight | standard |
| Level | intermediate |
| Era | current |
Features: Single F-attachment rotor; Plazuma-welded gold brass bell; #58 mouthpiece
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