MANLEY REFERENCE 350
VACUUM TUBE MONOBLOCK POWER-AMPLIFIER

Output 8 x 6550 (before 1990) or KT90 (1990-1993)
Driver 6350
Input l x 12AT7WA
Input sensitivity for full power, feedback set at:
MAX 1.8 Vrms
STANDARD 1.44 Vrms
MIN 1.2 Vrms
Input Impedance: 82 kOhm
Output load impedance: Factory set for 5 Ohms nominal
RCA Unbalanced input
Power Output @ 3% THD feedback MAXIMUM: 380 Watts
Power Output @ 3% THD feedback STANDARD: 376 Watts
Power Output @ 3% THD feedback MINIMUM: 360 Watts
Front Panel bias measurement with Top Deck Bias adjust
Variable Feedback 3-position switch
Variable SLOPE frequency response @ 20 KHz, (Ref. to 0dB @ 1K) MINIMUM:+1 dB
Variable SLOPE frequency response @ 20 KHz, (Ref. to 0dB @ 1K) STANDARD:+0.97 dB
Variable SLOPE frequency response @ 20 KHz, (Ref. to 0dB @ 1K) MAXIMUM:+0.88 dB
Mercury Magnetics power & output transformers
S/N ratio: better than -90 dB
Power consumption: enough to occasionally trip circuit breakers on turn-on
300 W Quiescent
900 W Full Power
Large filter / reservoir capacitors
Factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.
Operating Mains Voltage changeable with power transformer re-wiring and fuse value change.
Mains Voltage Frequency: 50~60 Hz
Mains fuse: 120v operation use 10A SLO-BLO; 220v use 5A SLO-BLO
B+ fuse use 1.5A SLO-BLO
Dimensions: bigger than a bread box: W=19, D=10, H=8.5 inches
Shipping weight: more than I can lift, about 80 lbs

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