Miraphone - Model 86A 4-Valve BBb Tuba (Lacquered)

Other finishes/customisations available. Drop us a message at the chat button below or at info@musicelements.com.sg if you'd like to find out more!

The epitome of BBb tubas is the first choice of fine concert bands everywhere. Known throughout the world for its resounding tone and precise intonation, the 186-4U 4/4-size has long been the standard of comparison for other BBb tubas and is the bestselling allround model among all rotary valve tubas.


- Size: 4/4
- Rotary valves
- With nickel silver wreath

Options/Customisations available:

Body material
- Gold brass with combined gold brass and nickel silver valve section
- Yellow brass with nickel silver valve section

- Silver plated
- Lacquered

- Five (Instrument weight: 10.34 kg)
- Four (Instrument weight: 9.7 kg)
- Three (Instrument weight: 9.46kg)

- 440 Hz
- 443 Hz

- With
- Without


Key Bb
Intonation 440 Hz or 443 Hz
Bell diameter 450 mm (17.717 inch)
Valve system Rotary
Valve section bore 19.6 mm (0.772 inch)
Mouthpiece TU21
Height 1010 mm (39.764 inch)
Weight 5 valves: 10.34 kg (22.80 lb)
4 valves: 9.70 kg (21.38 lb)
3 valves: 9.46 kg (20.86 lb)
Others Lyre holder and strap ring

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