Eb contrabass saxophone to low A - Benedikt Eppelsheim Wind Instruments, Munich:
"# range A 3 - F#6, sounding C1-A3
# 1 octave below the baritone saxophone
# 3 automatic octave keys
# additional altissimo register valve to written D 7, sounding F 4
# impressive overall height (177 cm = 70 inches) for more visual presence"
