Before you sell it, you might try this, by the way I am on my 3rd SLI-80. Get rid of the Jensen oil caps and put in V-caps. Call Chris Vanhaus, he is great to work with
It's a cheap, but substantial upgrade. You will get more bandwidth, both ends, more detail, better sound stage, clarity, transparency, and speed! I always felt the Cary was slow and overly romantic and lacked detail...NO MORE! You will probably have to do more tube rolling... I did. I had some nos ediswans in the frontend and once I got the V-caps, they where too much of a good thing. The only downside to the V-caps is the long break-in period...minimum 500hrs, but more is better.
Best, cheapest upgrade you can do. It makes the Cary "world class" to me.
Hope that helps.