I haven't listened to the older exposure but have recently bought the 3010S2D and its really good. My speakers are neat momentum sx3i, with my previous amp they could be a little shrill with S's being over emphasised, both on music and spoken voice. The new amp has taken the edge right off the treble. Good test i find for sharp treble is Out of Time Man by Mick Harvey. If you listen in a good system you will hear that his S's are sharp, having listened with a few speakers and amp combinations some either over or under emphasis this, its a good test for whatever amp you decide on.