Hmmm. Saw this thread and realize no-one has posted since the origin of manufacture became a main focal point here. I looked at one of my systems recently and without regard to place manufacture, I realized the following:
American made doesn't mean the best of hi-fi;
Chinese made (via a First World manufacturer) doesn't mean it is unreliable;
Simply put, the quality control of Bowers & Wilkins maintains its reputation wherever the item is assembled. Example: The $4,000+ 705 Signatures. I bought these to replace KEF LS50s and while they are 2.5 times the price, these are outstanding. The quality control, the luscious Italian wood veneer and finish and the sound---these are simply outrageous when coupled with proper amplification. For my office kit, I have the 705 Sigs being pushed by a McIntosh MA252 hybrid Valve/SS unit (USA). The Rega P8 is from the. UK, the Marantz ND8006 is from Japan and the Magnum Dynalab tuner is from Canada....Nonetheless, the sound is global: simply "Out of this world". Chinese manufacturing is based on the specs and quality control/budget of the company employing their massive population.
It's that simple.