Another way of skinning this cat is to add a 10m clock to the dac where the dac’s got the necessary BNC input. Since most dacs don’t contain $7000+ clocks that way you skin two cats in one fell swoop: better conversion clocking on the dac and better USB clocking on the slaved streamer. Not what InnuOS wants you to do but highly effective; and while you are at it: the 10m clock can equally be used on the ethernet switch, whether Etherregen or other (again provided it has the necessary BNC input) killing multiple birds with one clock (ooopppss….)
Now then: some designers insist external clocks don’t benefit sound quality (Ed Meitner et al) Numerous equally reputable designers, the likes of MSB, DCS, Esoteric et al beg to disagree with that view as does my listening experience.