Model No. / Depth of Cup / Approx. Cup Dia. / Rim Shape / Description 1* / Deep / 17.50 mm / Medium thin. / Extra-large cup for players with a robust embouchure. Produces a great volume of tone. 1C* / Medium / 17.00 mm / Medium wide. / Large diameter, medium cup good for all-around use. 1-1/4C / Medium / 17.00 mm / Medium wide. / Large cup for powerful trumpeters. Compact tone of great carrying power. 1-1/2C* / Medium / 17.00 mm / Medium wide, not too sharp. / Large diameter, medium cup good for