King 4B Sonorous
Bb large-bore tenor trombone · professional · vintage
Broad, centered large-bore symphonic/section tenor with excellent projection
| Type | tenor |
|---|---|
| Key | Bb |
| Bore class | large |
| Bore size | .547″ |
| Valve configuration | Straight (no valve) |
| Bell diameter | 8.5″ |
| Bell material | yellow brass |
| Slide | nickel silver |
| Finish | clear lacquer |
| Level | professional |
| Era | vintage |
| Country | USA |
| Years | 1960s-1970s |
Features: 'Sonorous' large-bore symphonic tenor; bore/bell reportedly derived from the Berlin Schmidt trombones used in the Cleveland Symphony