T1
Relative: Bach 6 1/2AL
Cup diameter: .993″ or 25.222mm
The T1 is our most popular design for large and small shank trombone. The cup is a large sloping “V” shape. The back bore is slightly tighter than most other equivalent models. Players enjoy the benefit of the large cup – large sound profile, but with just a hint of added resistance for improved control and response. This is a very rounded rim

bore size (standard): 6.63mm
bore size (symphonic): 6.76mm
Outer diameter: 39.2mm
Cup Depth:30.94mm
Large shank or small shank
T 2
Relative: Bach 7C
Cup diameter: .972″ or 24.69mm
The T2 has a shallow cup in that the ledge of the cup slopes in quickly, however the throat area is very open. This is a great combination allowing greater ease in the upper register but enough cup volume to fill out the sound. This is the flattest rim of the series with a crisp bite to it.

bore size (standard): 5.79mm
bore size (symphonic): 5.94mm
Outer diameter: 37.77mm
Cup Depth:32.64mm
Large shank or small shank
T 3
Relative: Bach 11C
Cup diameter: .947″” or 24.05mm
A shallow cup with a tight throat. The shape is very “C” styled which adds darkness, slowing the air to help compensate for the shallowness rounding out the tone. This rim is rounded and a tad narrower than the rim of the T1.

bore size (standard): 5.79mm
bore size (symphonic): 5.94mm
Outer diameter: 37.9mm
Cup Depth:26.92mm
Large shank or small shank
T1
Relative: Bach 6 1/2AL
Cup diameter: .993″ or 25.222mm
The T1 is our most popular design for large and small shank trombone. The cup is a large sloping “V” shape. The back bore is slightly tighter than most other equivalent models. Players enjoy the benefit of the large cup – large sound profile, but with just a hint of added resistance for improved control and response. This is a very rounded rim

bore size (standard): 6.63mm
bore size (symphonic): 6.76mm
Outer diameter: 39.2mm
Cup Depth:30.94mm
Large shank or small shank
T 2
Relative: Bach 7C
Cup diameter: .972″ or 24.69mm
The T2 has a shallow cup in that the ledge of the cup slopes in quickly, however the throat area is very open. This is a great combination allowing greater ease in the upper register but enough cup volume to fill out the sound. This is the flattest rim of the series with a crisp bite to it.

bore size (standard): 5.79mm
bore size (symphonic): 5.94mm
Outer diameter: 37.77mm
Cup Depth:32.64mm
Large shank or small shank
T 3
Relative: Bach 11C
Cup diameter: .947″” or 24.05mm
A shallow cup with a tight throat. The shape is very “C” styled which adds darkness, slowing the air to help compensate for the shallowness rounding out the tone. This rim is rounded and a tad narrower than the rim of the T1.

bore size (standard): 5.79mm
bore size (symphonic): 5.94mm
Outer diameter: 37.9mm
Cup Depth:26.92mm
Large shank or small shank