DENIS WICK-Tubamouthpiece Heritage 2SL GPS

DENIS WICK-Tubamouthpiece Heritage 2SL GPS, silver plated with gold plated rim, cup diameter Ø 32.00 mm, rim width: 7.73 mm, bore: 7.65 mm, back bore: open, this is a cup-shaped mouthpiece with a smallish throat, based on the Miraphone C4, but (crucially) with the backbore opened up massively. This gives an enormously punchy low-register and a very lively response in other registers.