Posted by me on December 12, 2001 at 15:54:32:
Is it only the rotary valves that produce F tubas with "bad" notes? Like, a MW 45 with rotors compared to a MW45 with pistons, does the rotor model have "bad" notes and the piston model not? This seems just off the wall if it's true. Or are there tubing/wrap differences between the horns, too?