Hi matt,Hey Nick, I'm running a similar setup with a Mutec MC-3+USB, 75ohm Afterdark Emperor Double Crown OCXO clock and Abbas Esoteric Audio DAC2.2SE (Multibit). The Emperor Double Crown is similar in spec to the Cybershaft OP20 when powered with the Afterdark LPS, though I'll soon be changing that for a 12V Fared Super3 after reading through this thread. It should be a nice improvement.
I always thought the Mutec was an incredible bit of gear but came across a few threads were it was claimed that removing the switching power supply in favor of an external LPS improves performance though online reports showed mixed results. Anyway I have had the SMPS removed from mine and a 2.5mm DC socket installed and used a 6vdc Fared Super3 with it. I was utterly blown away by the improvement it made with it making a similar improvement to the Afterdark clock itself.
So yes, the SMPS does hurt performance of the Mutec though you're unaware of the shortcoming until it's replaced with a quality LPS.
I hope that's of some use to you assuming too much to hasn't passed since your post.
Cheers
Matt
I m in the same boat as you.
I have abbas 3.1 se dac,feeded by a modded sinxger su1 thru lps1.2.
The singxer is a friend one ,who wants to sell it for me for a good price.
The future plan is: to start with this su1,with my server wich is usb out only,then upgrade to the highly claimed audio gd di20 he,then go for afterdark clock to clock my etherregen and the di20 he.
I have another option wich is turn my server to spdif output thru pink faun spdif bridge ultra oxco wich also can be optionally clocked .
Not decided yet,and would love to know more about the double emperor clock,sound,price,bnc cables used in your system...
Btw abbas dac is here since a month,very good dac,upgrading the tubes this coming month..
Thks