I wish I could compare them to the denon 5k or 7k, but I haven’t heard them. I have owned both the fostex ebony and mahogany in the past, and prefer the teaks to those. I felt the fostex x00 had more bass quantity, but that it overpowered other aspects of the headphones and became more muddy overall than the teaks. That being said, I enjoyed all three overall.
there is a comparison post by Tyll for the teaks, denons and fostex our there.
there is a comparison post by Tyll for the teaks, denons and fostex our there.