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ProLogue Three |
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Description |
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Non-inverting, no global feedback, extremely low-noise wide-bandwidth amplifying stages; smooth "Blue Velvet" Alps Potentiometer. Low output impedance without resorting to cathode follower output (Anode Out). Per channel dedicated power transformers & tube rectifiers (5AR4).
Triple Pi ( ) C-L-C-R-Z-R-C-R-filtering with integrated fully passive powersupply parallel regulation for each channel. Perfectly decoupled powersupply lines with ultra-wideband (several MHz) constant source impedance and low corner frequency of over two octaves below the audio bandwidth (4Hz).
DC heaters, convenient and smooth delay / muting circuitry. Prepared for receiving ProLogue MMPhono
Preamp board.
stereo fully dual-mono line pre-amplifier
Tubes: 2 x 12AX7, 2 x 12AU7 and 2 x 5AR4
Inputs: 4 x line
Outputs: tape-out + 2 stereo sets RCA single-ended |
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Specifications |
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Specifications:
Gain: 11,5dB (3,85x)
Frequency-response: 4Hz – 85kHz +/- 3dB
THD: <0,01% at 0dBm (775mV) output; 0,1% at 3,85V output
S/N ratio: 109dB (unweighted) ref 775mV
Input Impedance: 100k
Input sensitivity: 200mV for full output power when coupled to ProLogue Four or Five Power
Output impedance: 3500Ohm
Power requirement: 115/230V +/-15%, 50/60Hz
Power consumption: 48W
Net Weight: 23.5 lbs / 10.6 kg
Shipping Weight: 27.9 lbs / 12.7 kg
Dimensions: 15.5” x 11” x 7.5” / 395 mm x 280 mm x 190 mm (L x W x H)
Shipping Dimensions: 18.3” x 15” x 12” / 465 mm x 380 mm x 305 mm (L x W x H) |
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