For all large tubas. Enormous volume and range. Needs strong embouchure. Large funnel shaped Helleberg type cup. Clean and clear sound with good projection in all registers.

• Cup Diameter = 32.5mm
• Overall Diameter = 47.46mm
• Rim Width = 7.48mm
• Bore = 8.43mm
• Back Bore = Open
  

Extra deep cup. Large fitting (all modern instruments). For all large tubas. Enormous volume and range. Needs strong embouchure.

• Cup Diameter = 32.5mm
• Overall Diameter = 47.46mm
• Rim Width = 7.48mm
• Bore = 8.43mm
• Back Bore = Open

Especially for the professional tuba player, new mouthpieces have been introduced to give even more volume and projection. They are a little more difficult to control, but the extra effort repays dividends.

The inner rim contours are a little rounder for players who need to spend long hours in practice or performance. Much research has gone into the subtle reworking of the exterior shape to give even more powerful maximum dynamics and volume in all registers. 

• Diameter =:47.35 mm 
• Cup Diameter = 32.50 mm 
• Rim Width = 7.48 mm 
• Bore Size = 8.43 mm
• Back Bore = Open

Very deep cup. Small fitting (old European tubas). Large funnel-shaped Helleberg type cup. Clean and clear sound with good projection in all registers. 

• Cup Diameter = 32mm
• Overall Diameter = 47.46mm
• Rim Width = 7.73mm
• Bore = 8.45mm
• Back Bore = Open
  

Very deep cup. Large fitting (all modern instruments). Large funnel-shaped Helleberg type cup. Clean and clear sound with good projection in all registers. 

• Cup diameter = 32mm
• Overall diameter = 47.46mm
• Rim width = 7.73mm
• Bore = 8.45mm
• Back Bore = Open

Deep cup. Small fitting (old European tubas). Deep well rounded cup and huge throat and backbore give rich organ-like tone. 

• Cup Diameter = 31.25mm
• Overall Diameter = 47.46mm
• Rim Width = 8.11mm
• Bore = 8.78mm
• Back Bore = Large Barrel

Deep cup. Large fitting (all modern instruments). Deep well rounded cup and huge throat and backbore give rich organ-like tone. 

• Cup Diameter = 31.25mm
• Overall Diameter = 47.46mm
• Rim Width = 8.11mm
• Bore = 8.78mm
• Back Bore = Large Barrel

Shallow cup. Large fitting (all modern instruments). Soloist mouthpiece with tremendous projection and clarity in all registers. 

• Cup Diameter = 32.00 mm 
• Diameter = 47.35 mm 
• Rim Width = 7.73 mm 
• Bore Size = 8.45 mm 
• Back Bore = Open 
  

Shallow cup. Large fitting (all modern instruments). Soloist model with brilliant tone and high register. Perfect for F tubas. 

• Cup Diameter = 31.25mm
• Overall Diameter = 47.46mm
• Rim Width = 8.11mm
• Bore = 7.62mm
• Back Bore = Small
  

Deep cup. Small fitting (old European tubas). Scaled down version of 3L. Good projection with less effort. Good for young players. 

• Cup Diameter = 30.5mm
• Overall Diameter = 44.28mm
• Rim Width = 6.89mm
• Bore = 8.27mm
• Back Bore = Medium

Deep cup. Large fitting (all modern instruments). Scaled down version of 3L. Good projection with less effort. Good for young players. 

• Cup Diameter = 30.5mm
• Overall Diameter = 44.28mm
• Rim Width = 6.89mm
• Bore = 8.27mm
• Back Bore = Medium
  

Deep cup. Small fitting (old European tubas). Deep cup and matching backbore give a compact ringing sound of equivalent great sonority. Suits F and Eb tubas. 

• Cup Diameter = 30mm
• Overall Diameter = 44.28mm
• Rim Width = 7.14mm
• Bore = 7.89mm
• Back Bore = Medium

Deep cup. Large fitting (all modern instruments). Deep cup and matching backbore give a compact ringing sound of equivalent great sonority. Suits F and Eb tubas.

• Cup Diameter = 30mm
• Overall Diameter = 44.28mm
• Rim Width = 7.14mm
• Bore = 7.89mm
• Back Bore = Medium