It features a distinct "shoulder" glass shape (S-12 or ST-12).
String instruments like cellos and violins gain a woody, resonant texture that feels tactile. Prima Donnas: 2x56
Much like a difficult opera singer, the 56 tube requires a perfect environment to perform. But when the bias is right and the shielding is perfect, the vocal reproduction is unparalleled. The Technical Specs It features a distinct "shoulder" glass shape (S-12
Owning a piece of gear like this isn't "set it and forget it." To keep your Prima Donnas singing: Prima Donnas: 2x56