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Sansui A-80

Stereo Integrated DC Servo Amplifier (1980)

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Sansui A-80

Description

In the A-80, DC-Servo means sound that's pure as pure can be these days. All stages inside the power amplifier are direct coupled. All capacitors in the signal path are eliminated. We've added nothing, thus lost nothing.

There are no capacitors used that can add harmful colouration to music. No wonder sound is exceptionally clean in the A-80. The DC-Servo controls ultra-low-frequency signals (all those below 1 Hz) so that they can't reach your speakers. Which means you can, if you have to, play warped records and still hear good sound.

Power output is a comfortable 65 watts per channel both channels driven into 8 ohms, all this from an OCL (Output Capacitor-less) true complementary circuit with a DC-Servo system, built around a dependable op-amp (operational-amp) IC, for good, clean, dependable performance.

Specifications

Power output: 65 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 70kHz

Total harmonic distortion: 0.05%

Input sensitivity: 0.1mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 60dB (MC), 80dB (MM), 95dB (line)

Output: 150mV (line)

Speaker load impedance: 8Ω (minimum)

Dimensions: 430 x 147 x 251mm

Weight: 7.1kg

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Reviews

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rating
Reviewed Aug 05th, 2017 by ducar

Super design, good sound quality and extremely reliable...

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Reviewed Apr 17th, 2017 by allopeanut

Love the sound and looks
Has lasted allmost 40
Years so far !
I recommend highly the sansui a-80 !

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Reviewed Jan 03rd, 2017 by bradfro

1980 was a tough year for Sansui and other audio manufactures. The US was in a deep recession and things were changing in the audio world. The 80’s is the era for the demise of home audio, turning instead to home theater and computers. The equipment was changing as well, moving away from discreet output transistors, analog power meters, large aluminum volume knobs, face plates and FM tuner dials.
Many will overlook the Sansui A-80 integrated amp, but there is still a lot to like with this amp. The biggest notable things are the analog power meters and the nice large aluminum volume control. Yes, it’s also got a nice aluminum faceplate as well.
Inside you’ll find discreet analog circuits including the output transistors.
The sound is surprisingly good for this model. The Sansui sound seems to be there and it sounds good with a deep rich sound that has made Sansui famous. It’s also nicely powered with 65 watts per channel.
The only bummer is the plastic side panels, which was a turn off for me when I first looked at this amp. But it looks great on the shelf and sounds great too. I would not look past this amp for a budget minded audiophile that is looking for good sound at a reasonable price.

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Reviewed Dec 02nd, 2016 by Hankler

Rather shallow I know but as an 18 year old I simply bought it because it was the only black amp in the shop. It has had a chequered history however and with its first repair-I blew the coil-the tech felt that its ventilation capability was poor...as this model at best doesn't even have adequate ventilation. It has always blown fuses and with age I have not thrashed it as I once did. Still a well-made, beautiful looking amp that I still use 36 years after I first bought it.

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Reviewed Feb 02nd, 2015 by guest

The A-80 is not a beast of a amplifier like earlier Sansui offerings. The case sports plastic sides and a Masonite bottom with a metal top. On the up side the internals look of quality and a thoughtful circuit lay out with a steel chassis and a very nice aluminum faceplate. Sound is very subjective but if I had to describe it I would say it has a clean detailed sound. Mine just required a general deoxit and cleaning. Their is no relay and on power down it generates a low gentle thump indicating the caps are in good condition. I have had it for a couple weeks now and am really enjoying it. If you find one reasonably priced I would say buy it you won't be sorry.

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Reviewed Oct 31st, 2014 by Reven98

I have two amplifiers, Sansui A-80 and Marantz 4270 Receiver; and doing a comparison, the Sansui has the more clear sound and high frequencies reproduction, I was surprised indeed!. I recommend this amplifier for its fidelity and beautiful look.

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Reviewed Oct 10th, 2014 by krol

looks so lovely! meter and display wow!, sound very good for age. clear maybe to clear sound! depend of taste.

 

Comments

re: A-80

I used to have this unit long time ago and remembering that I enjoyed playing so good music with it on my High School years. A month ago I bough a similar unit on ebay with some issues. Thanks to HFE I got the schematics and after some time I was available to fix it. I could not believe how exquisite is the sound produced by this amplifier. I did some extra research and order all set of new capacitors using premium components. They will arrive next week so I am looking forward for the upgrade

re: A-80

thank you -- helpfull

This website is not affiliated with or sponsored by Sansui. To purchase A-80 spares or accessories, please contact the company via their website or visit an authorised retailer.