BORE	DESCRIPTION
SHALLOW:
20	4.50mm	Designed for specialist high playing, the larger bore gives less resistance than other shallow cups
20AX	4.00mm	Extra-long cylindrical bore and shorter back-bore, for maximum control in the high register even when the lips are tired
SHALLOW/MEDIUM:
21	4.80mm	Medium cup with a pronounced bowl shape, for a brighter sound
21A	4.50mm	A slightly smaller bore for a little extra resistance
MEDIUM:
22	5.20mm	Slightly double-bowl shaped, after a Viennese design
22A	4.70mm
23	5.20mm	Medium funnel cup, with a very balanced response in all registers
23A	4.70mm
DEEP:
24	5.20mm	More bowl shaped for a warm sonority
24A	4.70mm
25	5.20mm	Fairly straight sides, a deep funnel cup, giving a full, smooth sound
25A	4.70mm
VERY DEEP:
30	5.20mm	Very deep Viennese-style funnel cup
30A	4.80mm	***** New cup for 2008 *****
35	5.80mm	A long curved cup designed especially for low players

PHC Z Cups

The 'high performance' version of our existing cups, the Z cup enhances the excellent qualities of the PHC horn mouthpiece and offers enhanced resonance and sensitivity to the discerning horn player. This is achieved by a unique super-annealing process which de-stresses the molecular structure of the brass cup prior to plating. The Z cup will 'play in' over a period of time and offers an instant response to the softest tongue action or the lightest impulse of breath. It also displays the ability to create more clearly defined pitch 'slots' in the higher register, whether tongued or slurred. Because of the sophisticated techniques involved in the manufacture of these cups supplies are limited.

PHC mouthpieces cups and rims are designed by Anthony Halstead and Anthony Chidell.