POWER OUTPUT
 
140 watts continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at
140 watts, below 0.04% at 1 watt. (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 critical).
 
POWER BANDWIDTH
 
(-3dB Points) 5Hz to 70kHz.
 
FREQUENCY RESPONSE
 
(-3dB points at 1 watt) 0.5Hz to 110kHz.
 
INPUT SENSITIVITY
 
2.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms).
 
INPUT IMPEDANCE
 
200 k ohms Balanced.
 
OUTPUT POLARITY
 
Non-inverting. Balanced input pin 2+ (IEC-268).
 
OUTPUT TAPS
 
16 ohms, 8 ohms, 4 ohms.
 
OUTPUT REGULATION
 
Approximately 0.6dB 16 OHM LOAD TO OPEN CIRCUIT (Damping factor
approximately 14).
 
OVERALL NEGATIVE FEEDBACK
 
14dB SLEW RATE: 13 volts/microsecond RISE TIME: 2.0 microseconds.
 
POWER REQUIREMENTS
 
105-130VAC 60Hz (210-250VAC 50Hz) 400 watts at rated output, 700 watts maximum,
260 watts at “idle”, 1 watt off.
 
TUBES REQUIRED
 
2 matched pair KT150 (Power output V1-4); 2 6H30 (Gain stage V5 and V6).
 
DIMENSIONS
 
Width 17.25” (43.8 cm)
Height 10” (25.4 cm)
Depth 18.5” (47 cm)
Handles Extended 19.25” (48.9 cm)