CAL was bought by Sensory Sciences which is a subsidiary of Sonic Blue. Information on support for CAL products is available at http://www.diamondmm.com/support/. A quick look didn't uncover anything about upgrades to the Icon MkII, so you might want to contact them directly. Good luck!
Cal Audio Labs Icon MK II
So I've had this player for about 7 years, and really like it. Does anyone out there have advice about the "power boss" upgrade? Is it worth it? I'm not really interested in HDCD at this point; can the upgrade be done without the HDCD for less $$$? I tried to contact the website for CAL, but it's a little strange...seems some central access site for lots of companies?? Maybe I'll have to phone. Thanks. PS I have cj premiere 11, AI L1, Theil 1.5's, can't remember the cables. Thanks again.