Sugden Integrated IA-4 versus Ayre AX-7

I am considering a Sugden IA-4 to replace an Ayre AX-7 anyone any experience with both these amps?

Or even with the Sugden in general? I used to have a Sugden a21a before I went to the AX-7.

My source is an Oppo 105 and speakers Proac 2.5's.