M&W 929
Bb large-bore bass trombone · custom · current
Large-bore double-valve bass; rich, full foundation with complex, vibrant sound
| Type | bass |
|---|---|
| Key | Bb |
| Bore class | large |
| Bore size | .562″ |
| Valves | 2 |
| Bell diameter | 9.5″ |
| Level | custom |
| Era | current |
| Country | USA |
| Price (MSRP) | $7,750 |
Features: Custom/modular double-valve bass, configurable as independent or dependent and with open or traditional wrap (valve_config left blank because a single config is not fixed). Optional dual bore .562"-.578"; custom bell diameters available. -T variant adds a tuning slide.