Thank you for viewing! This is a listing for the Mr. P6.5 standard model. The Mr. P6.5 is almost the same as the 6.4 in terms of rim and size, but the cup is slightly deeper, and I perceive it as producing a slightly darker tone. It's a matter of preference. The following is quoted from the Japan Tuba Center: Cup Characteristics: Diameter 32.0mm, medium depth, very round Rim Width Characteristics: 8.5mm, very round Throat Bore: Diameter 7.8mm - A deeper cup version of the 6.4. Ideal for larger F tubas and players who use a lot of air. This "Mr. P" tuba mouthpiece was supervised by Daniel Perantoni, a world-renowned tuba player and professor, and co-supervisor of the "Perantucci" brand. While based on the Perantucci mouthpiece, the outer shape is between the normal and heavy Megatoni types of Perantucci, and it adopts a body with a moderate sense of weight. In addition, the inner rim is sharpened throughout, making it easy to obtain a quick response while gaining a sense of weight, and it is finished as a model that further enhances the quality of the Perantucci mouthpiece, which boasts a high share worldwide. Regular price: 30,800 yen * In principle, we do not offer discounts, but we will occasionally discount them at our discretion, taking into account the market prices around us.