Prima Donnas: 2x56 Page

These tubes are notoriously "microphonic." If you tap the chassis of the amplifier—or even walk too heavily across a hardwood floor—you might hear a "ping" through your speakers.

Always use a soft-start circuit to protect those precious 1930s filaments. Prima Donnas: 2x56

There is a specific golden-age warmth that makes digital recordings sound more "human" and analog. Maintenance and Care These tubes are notoriously "microphonic

Most "Prima Donna" builds avoid capacitors in the signal path, opting for high-quality interstage transformers to preserve the tube's natural harmonics. Listening Experience: What to Expect Prima Donnas: 2x56