Best place to sell high end audio equipment?

Well you are posting in an Agon forum.....

My experience is Ebay is best for selling quickly, and receiving fair market value.   Ebay and Paypal fees are approximately 13%, and can be built into the price.

If you list on Craigslist at a price close to Ebay levels, anyone with an ounce of intelligence will automatically tell you about the fees and then expect you to discount by at least the fee total.  

A few years ago I ran an experiment.  I posted a lot of items- cables, accessories, equipment, ranging in value from $50-$2000.  I posted on Ebay, Agon, Audio Asylum, US Audio Mart, Head-Fi.  Same ad text, prices and pictures on each site.   I had 1 sale on Head Fi, 1 Sale on US Audio Mart, and the rest sold on Ebay.   I had a lot of question from Agon buyers- mostly nitpicking and technical questions- a few very low ball offers, but no sales.   Mac equipment will sell very quickly on Ebay if your description is accurate, and your pictures are large and clear.

I messaged The Music Room about a couple of pieces.  All are mint, have remote and manual but no packaging:

Yamaha AS3000
Yamaha CDS3000
Yamaha CDS2100

They offered me $3,800 total ($1,700 for AS3000, $1,300 for cds3000 and $800 for the cds2100).  I know lowrider57 said their first offer is usually a lowball but not sure how much room I've got here for negotiation or if I should look elsewhere.  Any thoughts?

Take the money and run asap!!

"Any thoughts?" You’re clearly looking for a higher bid, sans paying a commission, by listing the items in a forum. Be honest and try an auction, here: https://www.audiogon.com/new_listing/type