As Swan's US importer for Internet-direct distribution, I might have a few points the OP (and others) could find clarifying.
I think it's safe to say that Swan are made by the largest vertical design, engineering, and manufacturing brand in the usual ID channels, probably by many times over. This is a ~$9-figure firm, far and away the largest in their sector; they naturally house an entire complex of manufacturing spaces with teams of engineers, all under they direction. Swan does not OEM extensively and the Swan products at TAI are exclusives. I know I'm more comfortable with that as my asset on my customer's behalf than some of the alternatives...
Please note that TAI (my ID outlet) is not Swan HK/International or Swan US, the latter based as retail space in LA. Swan HK/Int continues to acquire substantial added real estate, capacity, and resources, and at TAI, we're enjoying a number of the advancements those acquisitions have enabled already. TAI provides sales, service, support, and warranty for the models we carry.
Yes, Swan models have been emulated, but they've never been replaced. In my humble view, they've not been equaled.
There are, I believe, seven current models in the ID channel bearing the "X.2" suffix, and another nine with the original "X.1" suffix (with nine more cosmetic variants, otherise identical in every way.)
My site carries both lines plus another dozen or so other models including the M200 self-powered monitor and its successors. TAI supplies OZ Home Theater with all of the original models in the X.1 series -- Steve is a real champ, an AVS veteran, and we're happy to be working together.
I also import select Swan models for our friends at New Egg.com, the largest PC peripherals reseller, I believe, there is. Browsers should find that prices from both OZ and NE are...interesting.
Our newest Swan models feature all hand-laid bentwood construction (and include teardrop stern ends) and a proprietary driver series I specified just for the series. I believe this distinguishes these items in more than one way. Detailed info is available at the TAI site, which was completely remade about a month ago. I'll be adding content nearly daily from this point forward.
As FPB notes, Swans is a highly successful ID channel player and we're happy to be a part of that team. I've been working with Swan since 1994 myself, and if I can help in any way, I'd be pleased.