Guido, if the 312 uses the model 501 ICEpower module (ASP1000), then it has a built in switch mode power supply. It doesn't make sense, why would Jeff replace the built in SMPS with an external (transformer based) one?
Chris, I have no further info at this time. Some/any/all contraddictions may be solved once real specs and manuals are posted to the web. Until then. .. there is a little information and a lot of guessing by necessity.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.