I had a situation that resembles yours. I currently use Focal 1007be's and a Pass XA30.5. When I first got the Focals, I ran them with a conventional class AB amp. I quickly replaced it with a class AB amp with a modest class A bias. I then replaced that amp with a class AB amp with a strong class A bias - the XA30.5. Then I was happy.
As I changed to increasingly class A biased amps, the presentation from the Focals became less analytical (but, paradoxically, not less detailed!) and more of a gestalt experience. The presentation also became more harmonically correct, which for me, goes a long way toward expressing the beauty of music. Hope that helps a little.