Hi Georgios. Wow...took me awhile to rediscover this old thread!
I truthfully couldn't imagine anymore cost-effective upgrades to my system, so it stays the same. I don't listen as often as I used to as I'm focusing on my piano-playing, kayaking, first grandchild, and more live classical and choral subscriptions here in Boston.
The Aleph P simply has NO signature, perhaps partly because the EMC-1's balanced output is so high that it acts only passively. Its input selector switch is goofy (as are many), but I haven't chased a replacement switch yet.
I predominantly bought the P to have a perfect impedence match with the Aleph 2 monos, so I suppose it's perhaps overkill as it runs passively, but I can't imagine a more transparent sound....
Please note that I still have a bunch of extra all-Teflon starquad cable and connectors, as well tons of Hubbell duplexes, to sell cheaply to anyone interested in great ErnieM Power Cables.
Cheers.