has anyone heard of skyline speakers

Yep,

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.

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.