Where/what is the best place to sell used components

I would do Craigslist on those components.

Do the future a favor and find a young aspiring audiophile and give them the gift of a well loved and musical system that they can begin to appreciate 😊. It will do both of you a lot of good!!!🎶

 They will sell on Audiokarma. However it will cost you $25 to get a membership to go on their classifieds. I’d say Craig’s list for starters. 

You'll get the best action on ebay for a measly 13%

I would agree that if you don't need whatever money you would recoup from the sale and you know a budding audiophile, then a late Christmas present would be the way to go. However, if you do wish to sell them, my first choice would be US Audiomart, Canuck Audiomart if you are up north or Craigslist.

I have used both and both have their pros and cons. Audiomarts have a more knowledgeable clientele and less idiots. Craiglist saves the hassle of shipping, but there are too many people that either don't know anything or want it for nothing.