You can't use the term "ad hominum" more than once per thread...it's simply not allowed...too florid. I will defend my 640P to the end! That said, I seemed to have prompted a useful response and I can now rest my case.
If you can use a soldering iron you could consider this: http://www.kandkaudio.com/accessories.html. The LT3080 is an excellent regulator chip and the use of soft recovery diodes reduce the "hash" generated by the supply.
If I can lead the OP to a used 640P with a P100, or at least share my thoughts generally about the thing, I've helped make the world a better place in spite of the efforts of pretentious and condescending context police attempting to crawl up my wazoo.
True enough..."seriously nice sounding" should have been "seriously great sounding" especially with the P100 power supply. Snarky phono stage hoarders opinions may vary.
They likely ran out of 'em and moved on. It was an Audio Advisor product supposedly designed by a perhaps "in demand" Peter Madnick (Constellation Audio), so I figure they simply finished the run and can't be bothered to redesign the thing. Cambridge should be the ones selling beefy power supplies anyway, but I assume they think the stock wall warts are fine and they want to keep the stuff at a certain price point.
The 300 bucks or so "combined price" of my 640P/Pangea P100 make some very nice sounding analog. Seriously nice sounding. It surprises me that Audio Advisor isn't making an upgrade of the P100 to offer with the newer 651P and DacMagic stuff since the things work really well, and sold like proverbial hotcakes. How hard could that be?
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