The Custom Series line of trombone mouthpieces evolved out of the work we have done over the past 35 years for leading symphonic and commercial players.
BT 5 - The overall cup volume for this mouthpiece is closest to that of a Bach 5G, however the throat area is more opened making this more of a “V” shaped design. The “V” shape can add a hint of brightness to the tone. This rim has a bit of flatness to the top and is very rounded on the bite. It is known for its extreme level of comfort.
Cup diameter: .997"/25.3mm
Bore size (standard): 7.04mm
Outer diameter: 39.4mm
Cup Depth:33.37mm
BT 1.5 - The cup on this model is a variation on the 1.25 – the throat area is tighter and adds a level of control. The rim has a traditional contour with the high point towards the bite gradually sloping off.
Cup diameter: 1.087″ or 27.61mm
bore size (standard): 7.37mm
Outer diameter: 39.3mm
Cup Depth:36.5mm
BT 1.25 - Shallower than the #1 with a unique blending of cup shape and depth. The bottom (or ledge) is quite high for a large mouthpiece, but the throat area opens up to provide quick response and great flexibility while still providing a large sound. The rim is slightly thinner than our other models with a crisp bite.
Cup diameter: 28.35 mm
bore size (standard): 7.5mm
Outer diameter: 40.4mm
Cup Depth:36.8mm
BT 1 - This is our largest model. The internal dimensions of this mouthpiece are so large that it is only offered on the heavy blank.
Cup diameter: 1.123 or 28.524 mm
bore size (standard): 8.03mm
Outer diameter: 40.5mm
Cup Depth:38.9mm