There was no compromising on the design of the Holton MF Admiral trumpet . . . only on its price. In fact, this horn is often mistaken for a professional model because of its responsive, easy-blowing characteristics and its large, full tone and great projection. Holton believes that the student should receive the same quality, control and playing ease as a professional but at a student price.
Specifications
| Key | Bb |
| Bore | 11.66mm (.459") |
| Bell | 4.8125" diameter plasma welded yellow brass |
| Mouthpipe | Yellow brass |
Piston
| Monel material with single-slotted spring barrel, enclosed stainless steel springs and silent one-point non-metal piston guides |
Slides
| Nickel silver outside and brass inside slides, U-pull on 1st slide assembly with adjustable stop-nut and slide rod on 3rd slide assembly |
| Waterkey | Tuning slide and 3rd slides |
| Finish | Clear baked epoxy lacquer |
| Mouthpiece | 7C |
| Case | Deluxe wood shell with dual handles |
| Options | Model ST550 available with silver plating as model ST550S |
Materials Courtesy of Holton.