I guess this is similar thread topic so I just want to share it might be informative for you
Will a Japanese turntable works in the US?
Recently I found a good deal on a direct drive DJ turntable which was manufactured for the japanese market. I know japanese consumer electronics run on 100V while US runs on 120V. I have heard conflicting things on whether this would be an issue. It seems like the turntable would likely run but I have heard some reports that this difference in voltage might eventually damage it. Is a power adaptor a permanent solution to this problem? Is a power adaptor even necessary?
posted by bigspoon
It would help to know the make/model of turntable. Electricity in Japan seems a little weird. Most turntables use AC synchronous motors; if the turntable in question isn't "quartz-locked" or something similar, it will run at the wrong speed (20% too fast) in the US if it was made for 50Hz AC power. It's also possible that the voltage difference could be a big deal, depending on the power electronics. If there are any DC components inside, the power rectification, voltage regulation, etc, will all be dealing with 20% higher voltages than designed for. Even if it works, everything will run hotter and longevity may be compromised. In the worst case, something explodes, melts, or catches on fire.
I would probably go with a step-up/down transformer like this, which you could consider a permanent solution. (Note: I don't have specific experience with that particular transformer. It was just the first result on Amazon.) The transformer will address 120V vs 100V concerns, but it won't fix any speed issues you may have if the frequency of the AC synchronous motor power is directly derived from the frequency of the mains power and the turntable was designed for 50Hz AC.
If the turntable has a switching power supply, it might safely Just Work without modification, depending on the specifications of the power supply.
posted by strangecargo at 4:18 PM on December 16, 2014