Sansui CA 2000 preamp

Thanks guys looks like I’ll pick it up and have it serviced and updated as needed. Again thanks for the feedback 

glen 

I picked it up and had it recapped, some small transistors replaced and diodes etc.  I'm shocked at how nice this preamp is. It's dead quiet (100db speakers so I'd know), full of life, musical as hell and a huge sound stage. very detailed top to well the 50hz I get out of my speakers lol. not at all muddy and slow as I expected from a vintage piece. I forgot how useful tone controls are in a multi use system ( tv-movies-music). Over all best $1000pre+$500 (parts and labour for recap etc.) I've spent in audio in a long time. Lets not get into how nice it is to look at, well I suppose that user opinion. 

I really like how slow the taper in the volume ramps up at first, for us hi efficiency speaker owners its a blessing to be able to use more then a few deg of rotation.  

I have to say they really did build some nice equipment in the late 70's early 80's. trying out vintage as proven a good move, in this case anyway. 

I'll bet a nice tube amp would be a great combo or maybe a class D amp always wanted to try one. 

well cheers all my friends thanks for the help

Glen 

Glad it fits into your system well! Especially regarding the low noise with sensitive speakers. 
A low powered amp would work well with them and a single ended tube amp might work well. At 100dB efficiency all you might need would be a 300B amp with typically around 7 watts. Which speakers are you running? What sort of volume do you play them at?
Class D amps are very efficient and put out lots of power for their size, but you possibly won’t need their high power in this case.

I have a CA 2000, a AU666 (running as the amp with the CA 2000) and a TU666. All are running on their original capacitors will no problems. 
The components are all very high quality with a long life. I firmly believe in leaving these devices alone. If it sounds good it is good. If it started to sound crappy and it was not switch related. I would have it serviced. The one issue I have experienced is noisy switches and rotary dials. These are tricky to clean, as it is hard to access these without completely removing them. On the whole, modern quality audio components benefit from all the technical advances made since the 70's. Still I use these because I love the sound and the look. The same reason why I run an old Sony 557ESD CD player. Looks and quality.    

linn9000,

I have no doubt your equipment is still working fine and still sound great, my experience shows otherwise though.  Caps in those older models are getting on in years and will eventually fail, probably already drifted off spec as well. really when your getting into 30+ year old electronics its just a mater of time before something goes and when that cheep cap or resistor goes and takes your transformer with it (been there done that) expensive, hard to find (usually) and rarely new. I've refreshed a few vintage pieces now and everyone sounded way better afterwards. CA 2000. TU717, Treo 100, Dynaco Mk4 Mono's, so far and everyone was much improved.