The Yamaha YTR-9825 Custom Series Bb / A Piccolo Trumpet was developed with John Hagstrom of the Chicago Symphony Orchestra as an addition to the popular Chicago Series Custom Trumpets. The YTR-9825 features a .445-inch bore with newly designed leadpipes in both trumpet and cornet shanks. The 9825 also features a one-piece 4-inch hand-hammered bell with excellent, uniform resonance. The Yamaha YTR-9825 Custom Series Bb / A Piccolo Trumpet includes a case plus a trumpet and cornet mouthpiece and is available in silver (YTR-9825) finish.
- Rotary system: If the trigger is pulled when the third piston is depressed, the note can be reduced by a whole tone to expand the low register.
- The YTR-9825 comes with 4 leadpipes. Two leadpipes have trumpet mouthpiece receivers in Bb and A while the other two have cornet mouthpiece receivers in Bb and A.
- Key: Bb/A
- Bore: .445-inch
- Leadpipe: Two Sets-Bb and A for Trumpet and Bb and A for Cornet
- Leadpipe Material: Yellow Brass
- Bell: 4-inch One-Piece
- Bell Material: Yellow Brass
- Valves: Monel Piston (3) and 3rd Valve Slide Rotor
- 1st Valve Slide Adjustment: N/A
- 3rd Valve Slide Adjustment: Fixed Ring
- Features: Newly Designed Trumpet and Cornet Leadpipes; Pressure Formed Tubing
- Case: TRC-810 Wood Case
- Mouthpiece: TR11A5 Trumpet and CR11A4 Cornet
- Finish: Silver