I own the Ayre AX-7e Integrated and like it very much with my Sonus Faber Auditor M Speakers. I am very impressed with the way it sounds. The highs are excellent and so is the bass. The music is clearer and more engaging. The Ayre AX-7e Integrated and the Ayre CX-7e MP CD Player is a great combination. I suggest you arrange a demo with the Ayre AX-7e amp using your source and speakers (in your room). I have not heard the Classe, Moon audio or Pass amplifiers. I am very happy with my Ayre AX-7e. The AX-7e amp sounds best if used with balanced cables (XLR).
