Mayflower Electronics Desktop Objective2/ODAC with RCA.
Rear power connection / Rear USB DAC connection / Rear RCA connections work as input or output depending on source and 1/4" headphone jack on front panel. I don't think JDS Labs do the O2/ODAC Ltd Ed any longer and have instead included these options in their custom range.
The Limited Edition is the only one worth the money, although I'd bet that Mayflower would be willing to do it for cheaper than JDS.
However Mayflower isn't as big and a group buy might be too much for them.
there is a review online where the mayflower came with rca also. although i do not see it as an option on the site. I also would like rca out. maybe we can get it as an option if it goes through
The JDS Labs O2+ODAC combo Limited Edition (desktop version) looks incredible. Rear power 1/4in jack, RCA outs if required as DAC only. I would take this over the mayflower and other JDS offerings anyday.