PSU1 - Enigma

some people will think this is going overboard, but adding to my power supply upgrades (currently Enigma on Reflex M, PS Audio Ultimate Outlet for Enigma and PSU1 of solo ULDE), I bought a used PS Audio Duet. This is a four outlet power cleaning unit that I believe is the next generation of the PS Audio Ultimate Outlet. Reasoning that the newer one is better, I am plugging the Duet in to the Ultimate, which goes in the wall. 

Please feel free to compare the Enigma DC cable with the PSU1 DC cable.

I did the Enigma PSU for the Accession MC because the input and NFB error voltages in a high gain stage are slightly on the small side. All signal current must flow back to the power supply, but power supplies are essentially brutal especially conventional transformer - bridge rectifier - smoothing capacitor types.

Voltage regulators can only do part of the job. The return signal currents cannot flow backward, and therefore take different paths, depending on their frequencies. Most of the audio range will take the path of least resistance, and much of it travels back to the power supply smoothers.

We ask a lot of those capacitors. Not only must they stand 10 times the load current and go on for several years with 100 (120) Hz ripple, but they need to have good capacitive versus frequency stability and an exemplary dissipation factor. Such beasts are awkward to find, usually cost a bit more, and to ensure continuity of supply, must be bought in bulk and stored - and that's why such products cost more.

The resulting PSU was tried with the Accession MC, and the combination brought out the qualities I wanted and felt were missing previously using a stock PSU1.

The 0V reference was also dealt with. The PSU1 had, for years, a hard-wired modification to place the 0V take-off at a more appropriate point than the original design. The change had improved the sound qualities, but the Enigma took it further, in my opinion.

My conscience would not let me charge considerably more for the Enigma as it stood. There was no visible difference apart from the nameplate, so we decided to fit a locking DIN and make the 0V return the shield of a cable we'd been using to make another item. The cable is then sexily dressed as is the wont in hi-fi circles.

If the DC cable makes another improvement, all well and good, but my prototype used the stock PSU1 cable.

No, they're different. The figure 8 from the wall is the same, but the umbilical from Enigma to Accession is different. 3 pin DIN of heftier gauge.

Sounds like you are v vary happy GS owner. I was like that with my 1st GS phono and my last GS which was my solo and PSU1, if only I could afford the Enigma but I DON'T have the funds. May be one day ?