Luxman L-550ax vs. L-350 AII

I found this on the Luxman distributor's web site:

"The Luxman L-350AII is a rebadged L-550AII with all the critical Japanese audio parts, sourced from Luxman in Japan but assembled in China. As a result we were able to lower the retail price from $5000 to $3500 – a 30% decrease".

Unfortunately, it does not answer your question about the sound.  I suggest you call On higher Note and ask them.  Please see:

https://onahighernote.com

Made in China but fully backed by (and part of) Luxman is fine with me.  What about the sound?  Are they comparable?

The L-550ax is made in Japan and the L-350II is made in China.  There's your difference in cost.