The HR* CUSTOM DARK is their premium line of hard rubber saxophone mouthpieces, where the goal was to make the most beautiful sounding and playing pieces that we possibly could. As alto sax players, they know there are often a lot of unpleasant highs in the sound, especially on the higher notes. With the HR* CUSTOM DARK Alto, they retained the fun of playing a great alto mouthpiece while taking all the unpleasant highs off, by shaping a beautiful rollover baffle which gives it the pop and feedback that alto players are used to and then making a big large chamber and bore to give it this mellow, warm pretty sound.
The HR* CUSTOM DARK Alto uses the finest material used in hard rubber mouthpieces today, which is their proprietary Chedeville® Rubber. CHR (Chedeville Rubber) is a softer, purer formula than regular standard hard rubber. This rubber imparts a rich warm sound.
Next they made rounded sidewalls that add complexity to the core sound.
A large round chamber puts the timbre in a warm dark zone and the thick heavy gold plated brass band on the shank boosts the amount of harmonics in the sound.
The facing curve and baffle on the HR* CUSTOM DARK are what truly make the mouthpiece a joy to play. They have applied their twenty years of making mouthpieces on these two key components of a mouthpiece, with a combination of science, technology and old fashioned made by hand craftsmanship.
4 = .066
5 = .072
6 = .078
7 = .083
8 = .090
9 = .100