Ayre / Aesthetix hum problems?

I just have an Ayre K-5xe on loan. Sound is dead neutral, very fast and transparent and tons of detail BUT it lacks slam, body and warmth. So nothing for me..
I´d like to have a pre that combines all ;) So, which is the one to go for.. ARC LS 25 MK II , BAT VK 31 SE, Aesthetix Calypso ?

Personally, I think the ARC would sound the most like the Ayre. I really like my Calypso, but be aware that it sounds poor IMHO with the stock tubes, and while you will get the body and warmth you desire I am not sure it is the ultimate in "slam". You should try it if you can, though. I think the BAT may be the best overall choice, but again it would be good if you can try it. These are excellent units so it comes down to system synergy.

I just discussed with the german distributor of Aesthetix and they state that Jim White of Aesthetix in his private studio alsways listens with Ayre gear - so he shouldn´t have hum problems at all? Would be interesting to know if this story is true and how Jim solves the "hum problem".
Will insert a Hovland HP-100 P over the weekend - hopefully this is a better match than K-5xe. Nagra PL-L (last weekend) was to cold..

How close do you have your amp to the Janus. I had an EMI problem when I had my transport directly beneath my Aesthetix Rhea. One day I was shifting around some cables and I realised the hum had become less audible. I dropped the transport down a shelf and the hum vanished. Just a thought.

The Ayre is sensitive to power cables and break-in....don't make too harsh a judgement till 250 hrs. It gains warmth and presence with age. I had the VK30SE (not 31SE!) and the K5xe at the same time. The slam was better with the Ayre. The BAT did hightlight the midrange ever so slightly. The 31SE might be a lot better. I have not heard the ARC or Aesthetix.