Have you listened to the Bryston amps? I demoed a Plinius 100 in my home for a week and then demoed a Bryston 3B-ST. I chose (2) of the 3B-ST's bridged. The Plinius was very warm but just lacked a sense of realism. I was simply too laid back. I have always found however that matching the amp to the speakers and the components is really the most important thing. Because i was using a Bryston pre, this may have amde the difference. The Bryston was definetely stronger on the bottom end. Sorry I do not have any experience with the Ayre. Good luck!