Karl Hammond Design Bass Trombone Mouthpiece

The Karl Hammond Design bass trombone mouthpieces come in a variety of sizes. 

20BL

• This is a large cup diameter with large cup depth. This is a bowl-shape with a funneled entrance to the throat for a very open feel, but with the control of a shallower cup. .316/BT
• 1.125" dia
• Equivalent to Bach 1 1/4 or Schilke 59

21BL

• This is a large cup diameter with large cup depth. This is a bowl-shape with a funneled entrance to the throat for a very open feel, but with the control of a shallower cup. .316/BT
• 1.140" dia
• Equivalent to Bach 1 or Schilke 60

21BXL

• Very deep bowl shape cup but features the funneled entrance to the throat like the BL. This is the big boy! .316/BT
• 1.140" dia
• Equivalent to Bach 1 or Schilke 60