For the DIY builders and the spec-heads, the 2x56 setup usually follows a specific architectural philosophy: 2.5 Volts (AC or DC). Amplification Factor (µ): Roughly 13.8. Plate Voltage: Typically run between 180V and 250V.
Always use a soft-start circuit to protect those precious 1930s filaments. Prima Donnas: 2x56
Known for a lush, liquid midrange that modern transistors simply cannot replicate. For the DIY builders and the spec-heads, the
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 Prima Donnas: 2x56