Model #5706
Professional line
Technical Specifications:
Bore: M (11,43mm/0.450")
Bell: #18 (97mm/3.81")
Bell material: Yellow brass
Leadpipes: #8 & #9A
Valves material: Monel
Valves section: Yellow brass
Trim kit: Gold plated
Finish: silver plated 1000 thousandth
Model #5781
Maestro line
Technical Specifications:
Bore: M (11,43mm/0.450")
Bells: #18 (97mm/3.81")
Bells material: #18 Bellflex gold plated & #18 Copper silver plated
Leadpipes: #8 & #9A
Valves material: Monel
Valves section: Yellow brass
Trim kit: Gold plated
Fourth valve tone slide included
Finish: silver plated 1000 thousandth
Model #5720 Bellflex / Model #5721 Cooper
Maestro line
Technical Specifications::
Bore: M (11,43mm/0.450")
Bell: #18 (97mm/3.81")
Bell material: Bellflex or Copper
Leadpipes: #8 & #9A
Valves material: Monel
Valves section: Yellow brass
Trim kit: German silver
Finger buttons: Onyx
Fourth valve tone slide included
Finish: silver plated 1000 thousandth
