Thomas, any perceptions from CES must be preliminary at best. another issue is break-in......most phono stages i am familiar with improve dramatically in dynamics and openness with time.
I don't know how familiar Chad is with all the phono stages out there. he is mostly going on Michael Fremer's comments.
Mr. Fremer, of Stereophile, has never commented on the Aesthetix Io, so i presume he has not heard it. the Io sets a pretty high bar in my perceptions as far as explosiveness and musical energy. so to Fremer, the Steelhead may be more dynamic than his other references, but still short of mine.
i am currently auditioning the Lamm LP2 in my room. it is very good, much more quiet than the Io, much greater detail, more articulate bass and deeper and more layered soundstage. but the Io has far greater dynamic energy and life "so far". i feel the Io in my gut. the Io imparts an energy to the sound that connects with me.
i have only had the LP2 for a week and it is still openning up and gaining life. i don't expect it to ever reach the dynamic levels of the Io. so i will have to make a choice of priorities. possibly the Io Signature will give me the refinement of the Lamm LP2 and the dynamic energy of the Io.
so the Steelhead, if not broken in, could be similar to the Lamm......i wouldn't know without hearing it in my system.
the Lamm doesn't have all the front panel adjustability and options that the Steelhead has, and it has less potential gain; 57.5db verses 77db. but all the complication of the Steelhead can't help the resolution and purity in comparison to the Lamm or Io.
i look forward to a Steelhead owner commenting on their experiences......with phono stages context is everything.