Mouthpiece Comparison: Yamaha Trumpet
					
						Standard Series
						
							Yamaha 
								Model No. | 
							Approximate 
								Size Equivalent | 
						 
						
							| 5A4 | 
							Bob Reeves 40/ES 69 | 
						 
						
							| 6A4a | 
							Schilke 6A4a | 
						 
						
							| 7A4 | 
							Purviance 4 (4*D4) | 
						 
						
							| 7B4 | 
							Schilke 7B4 | 
						 
						
							| 8C4 | 
							Bach 10-1/2C, Giardinelli 10C | 
						 
						
							| 9C4 | 
							Bach 7C with smaller rim diam. | 
						 
						
							| 11A4 | 
							Bach 7E | 
						 
						
							| 11B4 | 
							Bach 7D | 
						 
						
							| 11 | 
							Schilke 11 | 
						 
						
							| 11C4-7C | 
							Bach 7C, Giardinelli 7C | 
						 
						
							| 13A4a | 
							Schilke 13A4a | 
						 
						
							| 13B4 | 
							Bach 6C | 
						 
						
							| 13C4 | 
							Bach 6B | 
						 
						
							| 13D4 | 
							Bach 6 | 
						 
						
							| 14A4a | 
							Schilke 14A4a, Giardinelli 6S | 
						 
						
							| 14B4 | 
							Bach 3C. Schllke 15B | 
						 
						
							| 14C4 | 
							Bach 5C, Giardinelli 5C | 
						 
						
							| 14D4 | 
							Bach 5B | 
						 
						
							| 14E4 | 
							Bach 3C rim,very deep cup | 
						 
						
							| 15B4 | 
							Bach 2C, shallower cup | 
						 
						
							| 15C4 | 
							Bach 2C | 
						 
						
							| 15E4 | 
							Bach 2C rim, very deep cup | 
						 
						
							| 16C4 | 
							Bach 1-1/2C | 
						 
						
							| 16D | 
							Bach 1-1/2C, deeper cup | 
						 
						
							| 16E4 | 
							Bach 1-1/2C rim, very deep cup | 
						 
						
							| 17B4 | 
							Bach 1-1/4C | 
						 
						
							| 17C4 | 
							Bach 1C | 
						 
						
							| 17D4 | 
							Bach 1C, deeper cup | 
						 
						
							| 18C4 | 
							Bach 1 | 
						 
					 
					
						GP Series
						
							Yamaha 
								Model No. | 
							Approximate 
								Size Equivalent | 
						 
						
							| 7A4 | 
							Purviance 4 (4*D4) | 
						 
						
							| 8C4 | 
							Bach 10-1/2C, Giardinelli 10C | 
						 
						
							| 11B4 | 
							Bach 7D | 
						 
						
							| 14A4a | 
							Schilke 14A4a, Giardinelli 6S | 
						 
						
							| 14B4 | 
							Bach 3C. Schllke 15B | 
						 
						
							| 14C4 | 
							Bach 5C, Giardinelli 5C | 
						 
						
							| 16C4 | 
							Bach 1-1/2C | 
						 
						
							| 17C4 | 
							Bach 1C | 
						 
					 
					
						Silver 925 Series
						
							Yamaha 
								Model No. | 
							Approximate 
								Size Equivalent | 
						 
						
							| 7A4 | 
							Purviance 4 (4*D4) | 
						 
						
							| 11B4 | 
							Bach 7D | 
						 
						
							| 14A4a | 
							Schilke 14A4a, Giardinelli 6S | 
						 
						
							| 14B4 | 
							Bach 3C. Schllke 15B | 
						 
						
							| 16C4 | 
							Bach 1-1/2C | 
						 
					 
					
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