I own an Accuphase amp and a Luxman turntable both purchased in Japan. I purchased a NISSYO industrial transformer from Japan (NDF series (voltage down) 120V 100V1500W NDF-1500U) on Amazon and it works flawlessly with both the amp and turntable. I did see that you can no longer purchase this transformer on Amazon and I did not look for other sources.
I have since converted the Accuphase to US voltage when I had the amp upgraded with new caps, resistors and transistors.

