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Duo-ß
circuit:
ß1:
extremely low NFB
ß2:
DC subsonic NFB
16-point frequency turnovers:
treble: 440 / 620 / 880 / 1,2 / 1,7 / 2,5 /
3,5 / 5 / 7kHz
bass: 55 / 77 / 110 / 155 / 220 / 310 / 440 / 620 / 880Hz
2-position filters,
6 or 12dB/oct. high cut filter,
50 or 100Hz low boost,
10 or 20Hz subsonic filter,
Toroidal MC head transformer,
Toroidal PT with L&R windings,
easily serviceable separate boards,
wood-enclosure. |
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