@madavid0
From a historical point of view, your statement has value. In olden days, let us say about 10 years ago, ICEpower modules taken by temselves produced the kind of sound, which were not particularly musical. There were in those days several examples of ultra-basic implementation of ICE that did not sound particularly attractive. THe same modules, however, used by amp designers with a modicum of amp design knowledged yielded extremely musical amplifiers.... I already mentioned the Bel Canto REF1000 Mk.2 and the Rowland M312 as examples. It is my understanding that more recent versions of ICEpower modules do not share the problems of the olde ones.
I did not know about ICEEDGE.... I'll try to find out about it.
Your statement about ICEpower benefitting from linear power supplies is, a little tunnel-visioned... In the following sense.
ICEpower modules, as much as class D modules from other makers, often integrated their own power supplies, or have companion ready-to-go SMPS for those amp implementors who want to create simpler amps at a lower cost.
Most of these modules however, can be powered by power supplies of other origins, they be linear, toroidal, SMPS, or perhaps other types. Invariably, some of these supplies are very good, and some might not be. A good designer with knowledge of power supply design is able to enhance his class D amplifier with a custom supply..... I believe that Henry Ho has long term experience using linear supplies, with all reports pointing to great results... Rowland has been using custom SMPS for the last 15 years at least with equally great results. In the end, the type of power supply does not matter, provided it is sinergistic with the module, and truly enhances the musical experience.
Regards, G.