Posted by Santos on May 04, 1999 at 16:28:12:
In Reply to: 4 Valve Sousaphone posted by Smiles on May 04, 1999 at 16:22:51:
Smiles :), it most likely was a 4-valve Miraphone. I think the Miraphone company makes more 4-valvers than other companies like Conn and Yamaha, although these companies have produced sousaphones with 4-valves in the past.