From a SANSUI flyer.
SPECIFICATIONS AU-777
MAIN AMPLIFIER SECTION
POWER OUTPUT (AT 8Ohm LOAD)
MUSIC POWER (IHF) 70W ±1dB
CONTINUOUS POWER (LEFT/RIGHT,30W/30W ±ldB
CONTINUOUS POWER (BOTH CHANNEL DRIVEN! 25Wx2±1dB
HARMONIC DISTORTION less than 0.5%
POWER BANDWIDTH (IHF) 20to50,000 Hz
IM DISTORTION (60; 7,000 Hz) 0.8%
FREQUENCY RESPONSE 20 to 100,000 Hz ±1dB at normal listening level.
CHANNEL SEPARATION 50dB
HUM AND NOISE (IHF) 100dB at rated output
INPUT SENSITIVITY 1V for rated output
OUTPUT IMPEDANCE 8 to 16Ohm
DAMPING FACTOR 24 (at 8Ohm load)
PRESENCE SWITCH 50 Hz, +6dB
INPUTIMPEDANCE 300KOhm
PRE-AMPLIFIER SECTION
OUTPUT VOLTAGE
MAXIMUM OUTPUT VOLTAGE 5V RATED OUTPUT VOLTAGE 1V
HARMONIC DISTORTION 0.1% below at rated output voltage
FREQUENCY RESPONSE 20 to 70,000 Hz -0.5dB -1.5dB
HUM AND NOISE (IHF
Phono below 80dB at Max. output voltage
Tape Head below 80dB at Max. output voltage
Aux. below 85dB at Max. output voltage
INPUT SENSITIVITY (FOR RATED OUTPUT VOLTAGE)
Phono-1 2mV (47KOhm)
Phono-2 2mV (100KOhm)
Tape Head FAST (19cm/ s) 1.5mV (200KOhm) Tape Head SLOW (9.5cm/s) 1.3mV (200KOhm) Aux-1 140mV (100KOhm)
Aux-2 140mV (100KOhm)
Tape monitor 140mV (100KOhm)
RECORDING OUTPUT 140mV
CENTER-CHANNEL OUTPUT
Flat 9.5V at 1,000 Hz
High-cut 9.5V at 20 Hz (fo=200 Hz)
CONTROLS AND SWITCHES
BASS CONTROL 20 Hz ±15dB, (3dB steps)
TREBLE CONTROL 20,000 Hz ±15dB, (3dB steps)
LOUDNESS CONTROL 50 Hz-8dB, 10,000 Hz -5dB.(volume control at -30dB)
LOW FILTER 20 Hz, -21dB
HIGH FILTER 20,000 Hz-22dB
MUTING SWITCH -20dB
MODE SWITCH 1. STEREO NORM 2. STEREO REV 3. MONO-l- 4.MONO-R
SPEAKER SWITCH 1) A 2) B 3) A+B 4) OFF
FUNCTION SWITCH 1. TAPE HD (19) 2. TAPE HD (9.5) 3. PHONO-1 4. PHONO-2
5. AUX-1 6. AUX-2
OTHER SPECIAL FEATURES
Directtape monitor. Headphonejack. Center-chan¬nel output for connection to third amplifier. Muting switch. Speaker selector switch. Step type tone controls.
Independent use of both main and pre-amplifier. Protector indicator.
TRANSISTORS AND DIODES
Transistors: 26
Diodes: 13
POWER REQUIREMENTS
POWER VOLTAGE 100, 117. 220, 240V. 50 to60 Hz
POWER CONSUMPTION 165 VA. Max.
DIMENSIONS
WIDTH: 435m/m 17-1/8"
HEIGHT (Excluding rubber stands): 155m/m6-1/8"
DEPTH (Excluding Knobs):334m/m 13-1/8"
WEIGHT:12.3 Kg 27.1 Ibs
Michael-Otto