About 6 or 7 years ago, well before my midlife crisis had hit hard, I heard your amps (552/300) through Focal Diablo Utopias. People say Focal are violently detailed and harsh etc , and I've heard that demonstrated once or twice in other systems. But this did sound pretty amazing. It was only for a few minutes, so hard to judge how I would live with an ultra-resolution deadly poisonous tweeter in the long run, but I still remember it very clearly 6 or 7 years later. And I still couldn't possible afford it. Since you could, it might be worth a listen.