I also listened to a pair of Noble K10s earlier. Initially, they left me a little underwhelmed but i rapidly changed my mind after listening a little more critically. They lack the visceral impact of the Roxannes, but IMO, are a little more refined and hi-fi. The bass is leaner, but instrument separation is better, and the attack/decay of the notes is a little more lifelike.
Thanks for your impressions.
...the trouble is... if you were listening to the Roxannes with the bass boosted to halfway, then perhaps this may have had an influence on subjective perception of instrument seperation etc., which would be quite influenced by relative levels of midrange and treble.