people with extended listening impressions of both units seem to be rarer than hen's teeth, but here's something to add to the impressions category:
http://www.head-fi.org/t/522131/modwright-sony-xa-5400es-truth-mods
it'd be great if robert levi at positive feedback, or ryan coleman at soundstage, did a review of the oppo mod, given their extensive experience with previous modwright work. unlike a reviewer, i don't think the average consumer would have much opportunity to compare the two units without buying both. i hope the few that have had experience with both chime in, though.
http://www.head-fi.org/t/522131/modwright-sony-xa-5400es-truth-mods
it'd be great if robert levi at positive feedback, or ryan coleman at soundstage, did a review of the oppo mod, given their extensive experience with previous modwright work. unlike a reviewer, i don't think the average consumer would have much opportunity to compare the two units without buying both. i hope the few that have had experience with both chime in, though.