Using Japan 100V Accuphase amp in US 120V. Safe?

i bought a dp-57 cd player from someone who is fortunately not selling on audiogon anymore. direct from accuphase etc. it came with a japanes manual and 100 volts. this web discussion alerted me to the dangers. when i took it to my local accuphase person, they directed me to someone who switched the internal power supply to 120 volts. a dead easy procedure for anyone qualified. he charged me $30.00. he said the difference is that 100 volts will half the life of the unit. if a deal sounds too good to be believed, then don't. i was lucky to read this discussion and got out of a serious problem easily. it is a great machine and i will be much more careful buying next time.

For voltage change, take a look at the third picture on the Chinese webpage:
http://eddie.dyec.com.tw/diy-demo/audio-diy/cd_dvd_modify/accuphase_dp-70/accuphase_dp-70.htm

Though the sample was an Accuphase DP-70, the same process should apply to E-212 also. The required change is clearly labelled.

Alan Hsu

I agree with Atmasphere. Don't run it at 120V. A good analogy would be running a car engine 20% past the redline for extended periods. You can use a Variac or a Variable Autotransformer. This is a transformer with 120V input, and 0-120V output variable.

I had bought a 100v version of the F 25 Accuphase crossover. I had also been told that this was OK for 120v and have been using it that way for nearly a year.
However, prompted by this article, I took off the bottom plate and their is a guide, as stated by Alan Hsu above, which has a legend adjacent to the power supply leads that shows how to exchange the leads to get different voltages. In my case, it was to exchange the positions of the yellow/orange wire and red wire to get 120v operation rather than 100v. The leads were quite similar to the illustrations at the site shown by Alan above. I am not concerned by warranty, because I am sure my unit has none anyway since it is a labelled 100v version in the USA.
The unit never actually ran too hot, but it was warm before, and is cool running now. The balance of the sound shifted slightly, but it always sounded great, even at 100v.

Has somewone experience running an Accuphase amplifier of 120V on a 230V net, with a transformer 230V - 120V?