Sansui QS-800A 4 Channel Rear Amplifier Restored, New Electrolytic Capacitors, Warranty. The unit has all new Audio Grade electrolytic capacitors, new audio grade Elna SilmicII audio capacitors filter the main amps, the preamp, the 7 main filter caps were replaced Nichicon "Super Through" Audio caps, in the secondary power supply with Nichicon and Silmic II Audio capacitors. The 4 preamps and the two 4 channel boards have all new transistors, film caps and diodes installed, all the resistors and diodes were checked and replaced if needed, new thermal pads were installed on all transistors needing them, all the old glue has been removed and cleaned off, all the controls were cleaned with Deoxit and work excellent, the bias has been set to the original factory mV settings. The 4 VU meter lights were replaced with LED lights.
 The unit is in excellent cosmetic condition all the display lights and VU meters work as should, the faceplate is in excellent condition also the cover top and sides are in excellent condition there are some small marks on the cover the pictures show most of them. With the recap this sounds absolutely incredible!!!!  and I am sure better than it originally sounded this model was made in 1973 and designed for USA and International use with multiple voltages. Elna Silmic II capacitors have a 100 hour break in period I have run the unit for about 20 hours for testing so that means that every time you listen to this up to that 100 hour period it will keep sounding better so if you notice a difference in sound each time you turn it on that is why. This is very heavy about 50 pounds so the unit will be packed well. You will have to be home to sign for this or the delivery service will not leave it!!   This unit has a 6 month warranty for repair, I rebuild Sansui amps I will also trade or buy your non working Sansui unit if interested please email me.
  Please do not be fooled, there are a lot of units listed as serviced and professionally restored the case might of just been polished and maybe the potentiometers cleaned, and some have the capacitors replaced but not the main filter caps well they are just as old and are bad, electrolytic capacitors have a life of about 35 years any 70's or before and even 80's unit have capacitors that could go bad at any time if you are going to spend money on a older unit make sure ALL, including the large main filter caps, the electrolytic capacitors have been replaced or you could be wasting your money and make sure it has some sort of warranty!!
Thank You
  This is a email received from a recent costumer:
 Hi there.
 The Sansui AU-717 arrived in Singapore last Thursday. I have been playing it ever since. Thanks for a superb job refurbishing the insides of the amp. Looked near mint and smelled like it was straight out of the factory in 1977! It was everything I read about it and more. Not only was it tube like in sound but put out loads of power it is by far one of the best sounding amps I ever heard! I have not turned the volume much beyond the 8 o clock position. So I really did not mind paying your slightly higher price on eBay!  All the best.