Specifications
POWER OUTPUT: 50 watts per channel continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 50 watts, below .05% at 1 watt. Approximate actual power available at "clipping" 52 watts (1kHz). (Note that actual power output is dependent upon both line voltage and "condition" i. e.: if power line has high distortion, maximum power will be affected adversely, although from a listening standpoint this is not very critical.)
POWER BANDWIDTH: (-3dB points) 12Hz to 90kHz.
FREQUENCY RESPONSE: (-3dB points at 1 watt) 1.0 Hz to 100 kHz.
INPUT SENSITIVITY: 0.5V RMS Single-ended for rated output. (32 dB gain into 8 ohms.)
INPUT IMPEDANCE: 50K ? Single-ended.
MAXIMUM INPUT: 3.5V RMS (any input). Optional 6dB pad for CD use.
OUTPUT POLARITY: Non-inverting (any input).
OUTPUT REGULATION: Approximately 1.5 dB 8 ? load to open circuit (Damping factor approximately 5).
MONO SUBWOOFER OUTPUT: 1V RMS at rated power.
OVERALL NEGATIVE FEEDBACK: 10dB.
SLEW RATE: 10 volts/microsecond.
RISE TIME: 2 microseconds.
HUM & NOISE: Less than 0.14mV RMS - 103dB below rated output (IHF weighted, input shorted).
POWER SUPPLIES: Electronically regulated Low and High Voltage supplies for input stages. Automatic 30 second warm-up/brown-out mute.
POWER SUPPLY ENERGY STORAGE: Approximately 166 joules.
POWER REQUIREMENTS: 100-125VAC 60Hz (200-250VAC 50Hz) 320 watts at rated output, 500 watts maximum, 205 watts at "idle". 0.5 watts power off.
TUBES REQUIRED: (2 ) Matched pair 6550EH - Power Output; (3) 6N1P input and driver.
DIMENSIONS : 14"(35.6 cm) W x 8"(20.3 cm) H x 16"(40.6 cm) D. Rear connectors extend .88" beyond chassis.
WEIGHT: 34 lbs. (15.5 kg) Net; 40 lbs. (18.2 kg) Shipping.
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