Hello again Mr D- I checked both the manual that came with my unit, and the site(url) that I posted. Both have pics of the GCPH. My manual(15-044-11-1) does not mention anything about discrete or Class A anything. I suppose the blurbsheet(url) I posted is out of date, and should be refreshed, as you mentioned. HOPEFULLY- that's simply an oversight, on their part. The issue of how much to spend on cables came up earlier. As I said; I'm using the GCPH experimentally, but- even my power cord(Zu Mother) cost me more than the unit itself. The Kimber KS-1030's and Synergistic Tricon Analogs both cost over twice the unit's price. I can't afford anything stratospheric, regarding cables, but I learned, long ago, how much difference carefully selected cables can make in a resolving system. That's especially true, if one gets to hear a lot of live music, and has for decades. I wonder what Mr M is using, with regards to cabling, and whether he might realize an improvement, with an upgrade.