Denis Wick introduced deeper cupped mouthpieces to the tenor horn when he started making his designs. By creating a cup shape closer to a French horn mouthpiece, Denis Wick was able to introduce a rich, romantic tone quality to the brass band.
Denis Wick tenor horn mouthpieces vary from the largest (the 1 and 1A with cup diameters of 19.50mm) to the smallest (the 5 at 17.50mm) which are also the shallowest (the 1 and 1A) and the deepest (the 5). The wider the cup, the more shallow it is. The 3 is the most popular model, with a medium wide cup (18.50mm) and medium depth.
The shank is designed to fit British-style tenor horns, not the German-style rotary-valve oval models.