Heck, all the manufactures buy their parts from who knows where these days, and the labor, well its where the cheapest is located at the time of their business contract, same for parts. The cheapest is going to get the business and fantastic quality, well that left us many many years ago.
And regarding Yamaha, I wonder where the line is drawn in their manufacturing structure on where all of their high-end, and mid tier AVR's, amps are made. Like this online notation. "Yamaha builds AVRs in 3 locations, Malaysia, China and Japan. The factory in Northern China is about 3 years old and largely builds the lower price-point AVRs as its labor costs are lower than Malaysia "