Trumpet Family Cornet Flugelhorn French Horn Trombone Bass Trombone Tuba

Trumpet Yamaha Model No. Approximate Size Equivalent 5A4 Bob Reeves OES 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 diameter 11A4 Bach 7E 11B4 Bach 7D 11 Schilke 11 11C4 Bach 7C , Giardinelli 7C 13A4a Schilke 13A4a 13B4 Bach 6C 13C4 Bach 6B 13D4 Bach 6 14A4a Schilke 14A4a, Giardinelli 6S 14B4 Bach 3C, Schilke 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 Trumpet -GP Models 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, Schilke 15B 14C4 Bach 5C, Giardinelli 5C 16C4 Bach 1-1/2C 17C4 Bach 1C Trumpet - Silver 925 Models Yamaha Model No. Approximate Size Equivalent 7A4 Purviance 4 (4*D4) 11B4 Bach 7D 14A4a Schilke 14A4a, Giardinelli 6S 14B4 Bach 3C, Schilke 15B 16C4 Bach 1-1/2C TOP Cornet (Short Shank) Yamaha Model No. Approximate Size Equivalent 7D4d Denis Wick S 8D2 Denis Wick S, larger rim diameter 9E Denis Wick 5 11C4 Bach 7C 11E4 Denis Wick 4B 13E4 Denis Wick 4 14E Denis Wick 3, deep U cup 16E Denis Wick 2, deep U cup Cornet -GP Models (Short Shank) Yamaha Model No. Approximate Size Equivalent 14E Denis Wick 3, deep U cup 16E Denis Wick 2, deep U cup Cornet (Long Shank) Yamaha Model No. Approximate Size Equivalent 7A4 Purviance 4 (4*D4) 9C4 Bach7C, smaller rim diameter 11C4 Bach7C, Giardinelli 7C 13B4 Bach 6C 14B4 Bach3C, Schilke 15B 15C4 Bach2C 16C4 Bach 1-1/2C 17C4 Bach 1C TOP Flugelhorn Yamaha Model No. Approximate Size Equivalent 7F4 Giardinelli 10FL 11F4 Bach 7FL 13F4 Giardinelli 7FL 14F4 Giardinelli 7FL, larger rim diameter 16F4 Giardinelli 3FL Flugelhorn -GP Model Yamaha Model No. Approximate Size Equivalent 14F4 Giardinelli 7FL, larger rim diameter TOP Horn Yamaha Model No. Approximate Size Equivalent 28B Alexander 5, smaller rim diameter 29B Alexander 5 29C4 Tilz 39S, smaller cup 29D4 Holton VDC 30B Alexander 8, shallower cup 30C4 Tilz 39S 30D4 Holton VDC, larger rim diameter 31B Tilz 39 31D4 Giardinelli G17 32B Tilz 39, larger rim diameter 32C4 Alexander 8F 32D4 Giardinelli S16 33C4 Alexander 8F, larger rim diameter 33B Denis Wick 5N 34B Denis Wick 4N 34C4 Bach 3 35C4 Bach 3 with larger rim diameter Alto (Tenor) Horn Yamaha Model No. Approximate Size Equivalent 37C4 Denis Wick 3 38D4 Denis Wick 2 Horn -GP Models Yamaha Model No. Approximate Size Equivalent 30 Holton MDC, smaller rim diameter 31 Holton MDC 32 Holton MDC, larger rim diameter Horn -Silver 925 Models Yamaha Model No. Approximate Size Equivalent 30 Holton MDC, smaller rim diameter 31 Holton MDC 32 Holton MDC, larger rim diameter TOP Trombone/Euphonium/ Baritone (Small Shank) Yamaha Model No. Approximate Size Equivalent 45A Bach 12E 45C2 Bach 12C 46B Bach 11C rim, shallower cup 46C2 Bach 11C 47 Bach 6-3/4C, Schilke 47 48A Bach 6-1/2 rim, shallower cup 48 Bach 6-1/2AL, Denis Wick 6BS 48D Bach 6-1/2AL rim, deeper cup 51B Bach 5G, shallower cup, Schilke 51B 51C4 Bach 5G, slightly shallower cup 51 Bach 5G 51D Bach 5G, deeper cup 52 Between Bach 5G & 3G Trombone -GP Models (Small Shank) Yamaha Model No. Approximate Size Equivalent 45C2 Bach 12C 48 Bach 6-1/2AL, Denis Wick 6BS Trombone -(Large Shank) Yamaha Model No. Approximate Size Equivalent 47 Bach 6-3/4C, Schilke 47 48 Bach 6-1/2AL, Denis Wick 6BL 48D Bach 6-1/2AL rim, deeper cup 51B Bach 5G, shallower cup, Schilke 51B 51C4 Bach 5G, slightly shallower cup 51 Bach 5G 51D Bach 5G, deeper cup 52 Between Bach 5G & 3G 53 Bach 3G, Denis Wick 4AL 54 Bach 3G with bigger diameter 55 Bach 2G with smaller diameter Trombone -GP Models (Large Shank) Yamaha Model No. Approximate Size Equivalent 48 Bach 6-1/2AL, Denis Wick 6BL TOP Bass Trombone Yamaha Model No. Approximate Size Equivalent 58 Bach 2G 59 Bach 1-1/2G, Denis Wick 2AL 60B For German style bass trombones 60 Bach 1G, Schilke 60 Bass Trombone -GP Model Yamaha Model No. Approximate Size Equivalent 59 Bach 1-1/2G, Denis Wick 2AL TOP Tuba Yamaha Model No. Approximate Size Equivalent 64 Bach 25, smaller rim diameter 65 Bach 25 66B Schilke Helleberg, shallower cup 66 Schilke Helleberg 66D4 Bach 24AW 67B4 Miraphone C3, shallower cup (For F tuba) 67 Bach 22 67C4 Miraphone C3 68B Schilke 69C4 TOP