Had the K1000's and R10's (along with DX1000's, MD5000's, W5000's, and a few others) and sold them after getting the HD800's. Are the HD800's "better" than the K1000's and R10's? Very subjective call as both the others are incredible in their own ways. The HD800's are great balanced, and when run such give the air of the K1000's, more bass than the R10's, and are simply a terrific overall headphone. Are they "perfect?" No. And, I still want to hear the new PS1000 and Edition 8's just for interests sake, as they seem to be direct competitors to the HD800's.