Integrated DC Stereo Amplifier (1977-79)
The AU-517 with it's DC power amp boats highly accurate reproduction of all signals (including any kind of musical signal), and it achieves exceptionally high circuit stability. The pre-driver circuitry is so effective in assuring stable performance in the face of temperature and voltage changes that Sansui has registered it with major patent offices around the world.
The subsonic filter attenuates harmful frequencies from 16Hz and below on a 6dB / octave slope, yet keeps musical content intact.
The potentiometer for master volume control is a precision attenuator type with 32 accurately calibrated steps marked in decibels (dB). By a simple calculation you know how much average power you are feeding your speakers.
The AU-517 has full monitoring/recording/dubbing facilities for two stereo tape decks. All play/copy operations can be handled by a trio of switches and a rotary knob, permitting a number of practical uses.
Power output: 65 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.025%
Damping factor: 60
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 78dB (MM), 100dB (line)
Channel separation: 60dB (MM), 65dB (line)
Output: 150mV (line), 1V (Pre out)
Speaker load impedance: 8Ω (minimum)
Dimensions: 430 x 168 x 389mm
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Reviewed Jan 18th, 2014 by Pastorman
Second best amp I have ever owned, the Sansui AU-719 was my favourite. This is a close second. Good clear sound with lots of definition. Good bass response without losing the crispness of the high notes.
Reviewed Jan 13th, 2014 by ONURB
Very high quality amplifier;
Nice phono stage;
Smooth with details and excellent bass section;
no noise and very low distorsion;
Reviewed Jul 28th, 2013 by GoldSoundz
Excellent amplifier. Very similar to the popular AU-717 (similar faceplates, true dual mono design, etc) but with 20 watts less per channel and simpler tone controls. Superb phono stage; no noise or hum even with the volume very high. Overall character: smooth yet detailed with well-defined bass. Highly recommended.