has anyone heard of skyline speakers

a guy tried to sell me some for 1700.00
Dali Skylines? Haven't heard them, but remembered that the Skyline 1000 and 2000 were open-baffled ribbon hybrids. Run a Google search for Dali Skyline and you'll get some hits, including some "reviews" at Audio Review.

I have a couple of Dali's Skyline 1000.
They are difficult to place and finding a good sounding amplifier can be a hassle. But once you have that sorted out, they sound absolutely amazing. Nope, mine are not for sale. Not ever.