The Vandoran Bb German Clarinet D Series Mouthpiece is a Boehm system mouthpiece specially adapted to the German Clarinet and the "Reform Boehm", offered in two models: the M30D an B40D. The M30D offers a good balance between timbre and roundness, while the B40D produces a compact and centered sound. The length and diameter of the shank, the bore, the appearance of the tip rail and the external shape are the components of this new concept, which offers a perfect balance between a very warm sound and great intonation. 56 Rue Lepic reeds are more particularly recommended for these mouthpieces.