The 40K 4-Valve Sousaphone is an exciting addition to the legendary line of C.G. Conn sousaphones. The addition of the 4th valve creates improved intonation- especially in the lower register. For bands that require a strong lower foundation for their ensemble, the extended lower range of this model allows the player to really crank out the lower notes with ease. Specifications: Key of BBb, All Brass, .734" Bore, 26" Bell, 4 Valves, Exclusive offset short action pistons, Clear Lacquer, Silver Plated, With Case, Heavy Duty Bracing.
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