RT-921
REAL TUBE STEREO REVERB
USER MANUAL
FEATURES
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2 full sized Accutronics® reverb spring pans. (6-springs each).
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Operational modes: Discreet Stereo
Stereo in, Summed Mono out
Mono in, True Stereo out
Mono in, Summed Mono out
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Compatible levels: Line level in, Line level out
Line level in, Instrument level out
Instrument level in, Instrument level out
Instrument level in, Line level out
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MosValve (Patented) high-powered reverb drivers. Impedance and symmetry balanced to
perfectly match the characteristics of tube/transformer drivers in old black-face "Fender™"
reverbs with greatly enhanced versatility and no instabilities.
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Extremely low-noise reverb recovery system including advanced circuitry and 4-stages of
12AX7A tube enhancement with level matching to insure proper channel balance.
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BK Butler's special actively summed, passive characteristic 3-band EQ system with active
output level control.
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Stepping clip indicators which indicate -3dB from noticeable tube clipping.
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Completely by-passable, including footswitch jack.
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External high-current power supply to reduce internal hum and noise to unprecedented low
levels.
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Built with two goals in mind:
GREAT TONE!
LASTING RELIABILITY!
