Tubax (E♭)
- Tubax Eb contrabass saxophone
- range Bb 3-F#6, sounding Db1-A 3
- additional altissimo register key to written D 7, sounding F 4
- 1 octave below the baritone saxophone
- baritone saxophone mouthpiece
- 3 automatic speaker keys
- narrow bore for less air consumption and a reasonable overall height (114 cm = 45 inches) by a completely new body design
- same fingering as any modern saxophone