Miraphone 91A GM Bb-Tuba
Professional music gear - detailed information and where to buy
The Miraphone 91A GM is a serious tuba for the seasoned professional – or a very dedicated student ready to step up. The gold brass construction provides a warm, powerful sound with excellent projection, while the conical rotary valves make technical passages surprisingly easy. It's a true workhorse, built to last and deliver consistent performance for years to come.
Product Description
- Miraphone 91A GM Bb-Tuba
- Bb Tuba
- Size: 5/4
- Body and bell made of gold brass
- Nickel silver rim
- Combined gold brass/ nickel silver key system
- Gold brass mouthpipe
- Bore: 21.20 mm
- Bell Ø: 470 mm
- Height: 920 mm
- Weight: 10.00 kg
- 4 Rotary valves
- CPU ball joint
- Conical rotary valves
- Clear lacquer finish
- Incl. TU33 mouthpiece
PROS
- • Gold brass body delivers a rich, resonant, and projecting tone.
- • Miraphone’s conical rotary valves offer exceptionally smooth and fast action.
- • Nickel silver rim provides a comfortable and responsive embouchure feel.
- • Robust construction ensures exceptional durability and longevity for a professional.
CONS
- • The 5/4 size and 10.00 kg weight make it physically demanding for smaller players.
- • The gold brass/nickel silver key system, while beautiful, adds to the premium price.
- • The included TU33 mouthpiece might not suit every player's preference.
Product Video
Key Features
Bore Size
21.20 mm
Bell Size
470 mm
Material
Gold brass/Nickel silver
Valves
4 Rotary valves
Finish
Clear lacquer
Weight
10.00 kg
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Frequently Asked Questions
The 91A offers a slightly darker, more focused tone than the 122A, which is known for its brighter, more open sound; the 91A prioritizes projection and fundamental clarity.
Miraphone's rotary valves are renowned for their tight seals, but like any mechanical device, they require occasional maintenance; proper care and occasional oiling will prevent leaks.
Yes, gold brass provides a richer, warmer tone with more overtones compared to nickel silver, resulting in a more complex and projecting sound, although nickel silver is generally brighter.
