POWER OUTPUT: 70 watts continuous from 20Hz to 20kHz. 1kHz total harmonic distortion typically 1% at 140 watts (33 watts in Triode mode) per channel, below 0.04% at 1 watt
POWER BANDWIDTH: (-3dB points) 7Hz to 68kHz
FREQUENCY RESPONSE: (-3dB points at 1 watt) 0.7Hz to 94kHz
INPUT SENSITIVITY: 1.4V RMS Balanced for rated output. (25.5 dB gain into 8 ohms); 0.7V RMS SE for rated output.
INPUT IMPEDANCE: 300K ohms Balanced, 75K ohms Single Ended
OUTPUT POLARITY: Non-inverting. Balanced input pin 2+ (IEC-268)
OUTPUT TAPS: 16 ohms, 8 ohms, 4 ohms
OUTPUT REGULATION: Approximately 1.0dB 16 Ohm Load to Open Circuit(Damping factor approximately 8)
OVERALL NEGATIVE FEEDBACK: 15dB
SLEW RATE: 10 volts/microsecond
RISE TIME: 4.0 microseconds
POWER REQUIREMENTS: 105-130VAC 60Hz (210-250VAC 50Hz) 420 watts at rated output, 280 watts in Triode mode, 221 watts at “idle”
TUBES REQUIRED 2 matched pair KT150 (Power output V1-V4); 2 6H30 (Gain stage V5, V6)
DIMENSIONS :Width 18.5” (47 cm) chassis; 19.0” (48.26 cm) faceplate, Height 10.5” (26 cm) , Depth 18.5” (47 cm) With handles & connectors: 21” (53.3 cm)
WEIGHT:62 lbs. (28.2 kg) Net; 73 lbs. (32.7 kg) Shipping.