I wish I did, I think IA have done a great thing in bringing these amps out, not least the £500 model which is a great way into the world of valves. Their range seems really well put together and along with Q Acoustics, I have a bit of a soft spot for the pair of these companies. All power to their elbow.
Sadly not heard any of their equipment yet, but if you do have a demo, let us know how it goes. I think a few on here would be interested to read your thoughts.
Marantz SA7001 KI - Sansui AU-217 - Mission 752