I think you are fortunate if you can audition those amps with your speakers. I have a pair of Harbeth 30.1 speakers. I had used an Exposure 3010 s2D for a number of years. There were times when I got somewhat restless with the amp/speaker combination. There was more of an edge to the music than I wanted. I ended up changing to a Luxman L505-uXII. It was a big improvement in my room, with my gear, to my ears.
I would take your time in making your decision. I have heard that the new Exposure is a meaningful improvement over the 3010 (not sure what that means). I would try to listen to a Luxman if you could. Good luck.....enjoy the hunt.