Luxman Audio Gear - what is happening with them here in USA

I was recently auditioning a $15k + turntable and cartridge through a Luxman valve preamp, a Bryston amp, and a pair of odd-shaped KEF speakers.

There was a buzz in one channel of the LUXMAN that could not be gotten rid of. The tech fellow and the turntable manufacturer switched out everything and the fault was found to stay in that one channel of the Luxman.

One swallow does not a summer make but these are not the Luxman products of yore. Today they seem to be built down to a price. I'm sure Magnolia will have them next.

Thanks to everyone for all the informative, level-headed discussion about Luxman components. I am a hifi neophyte about to invest a fairly significant chunk of my yearly income in new equipment. A Luxman integrated amp is on my short list. ----- My questions are about the compatibility of a 590 series IA with low sensitivity speakers, e.g., Magnepan .7s, and the capabilities and quality of the 590 headphone stage. My first concern arises from the knowledge that Luxman amps are rated (by Luxman) at considerably lower power than comparably priced, hi-end equipment. My second concern arises from pure ignorance. ----- Many thanks for a thoughtful response.  

"One swallow does not a summer....I'm sure Magnolia will have them next."                                                                                                                                                                                                                                   Come on, this falls into the pantheon of ridiculous comments, of which there are many. Jeez louise....

sonometer, I’ll just post these links for you to look at. Luxman only publishes the power for the class A portion of the amp, which seems a dis-service. I wouldn’t feel comfortable making a blanket statement about the amp and your speakers, although I’m inclined to think it wouldn’t be an issue.
L.
http://www.luxman.com/files/HFN_Luxman%20L-590AXII_lowres.pdf
http://nordaudio.pl/uploads/pdf/luxman/test/20141202-EN-l590ax.pdf

Pantheon - First, you are ignorant, like many, about the merchandising practices of big manufacturers that 10 years ago no one thought would be in Best Buy like B&W, KEF, McIntosh. They buy their way in. Why not Luxman? 
Second, a comment cannot fall into a pantheon. That is a malapropism. Stick with jeez etc.
builder3-
You are correct. Many manufacturers no longer publish FTC spec ratings for their amplifiers. The reviews of the Audionet 500 wpc RMS amplifier by Stereophile proves your point. The expensive Audionet went into thermal overload during the FTC pre-conditioning test. What is it really? A 300 wpc RMS  amplifier? That regulation still has the power of law and it still is a requirement. Only if one passes the initial test can a "peak music rating" be specified. What do the importers and manufacturers have to hide? Is Luxman any different?