I went Pass X-5 with my N803s (and HTM2 and surrounds). While I didn't compare too many combinations I have to say I'm happy. My selection process was to look for the most subtle combination 'cause I think, like wine tasting, if you do comparisons you can end up with the most noticeable sound rather than the best. I'd be ever happier with the X250/N802 combination but my better half suggested she'd end up having conversations with the N802s. She's like that sometimes.