YBA is a French manufacturer of audiophile grade components with that audiophile jewelry appearance and sound. The company produces everything you could need from CD players, preamps and amps as well as having their own line of audiophile cables.
In the United States YBA is distributed by Audio Plus Services which is the same firm that distributes Focal, Pathos, Cambridge Audio and many other top audiophile brands.
Although a bit more limited in distribution - YBA can be compared to audiophile brands like Krell, Mark Levinson, Linn, Naim, Boulder and many others.
You can find US distribution at Audio Plus Services.