The easy things I remember: the U10 is much, much bassier than the Zeus-R. Zeus's bass will be more tactile and firm compared to the airy Adele bass. Also the U10 didn't have a lot of treble presence. Treble detail could be masked by the prodigious bass. Treble is one of the Zeus-R fortes. Really nice sparkle and timbre, as well as very resolving. So overall the Zeus-R is much closer to neutral.
7/30/16 at 6:11am