Aesthetix Io Sig vs Manley Steelhead-opinions pls

Please check the archives as this was covered a couple years ago.

I checked the archives but wasn't able to find anything of relevance. I too am interested in hearing the opinions of those with extensive experience of both units.

Here it is. I remembered this as it was a result of a thread I posted. And Albert Porter pretty much summed it all up between the 2 units .... and then a few posts down, so did another contributor. I ultimately went with the Io, had Steve Huntley at GNSC do some magic on it over a year ago and he is looking to do more.....this time on the P.S. To evaluate the Io or the Callisto with stock Ei, EH or Sovtek tubes is silly. These things come alive with some tube-rolling efforts.

Thanks Jafox! I'd like to get the Aesthetix 6-box combo but first I'll have to move my Atma-Sphere MP-1 mkIII.

Exlibris, As a fellow owner of the Atma-sphere MP1, I am curious to know what you might not like about it that causes you to want to change to the (very much more expensive) 6-box Aesthetics, fine as the latter preamp may be. Or is it the eternal quest for something different (and possibly better) that drives you?