Accuphase E600 voltage conversion

Hi Zensview, 

I have the same amp and I am thinking of converting the voltage for it. 

Have you converted your Accuphase amp? Does the conversion change the sound quality?

Thank you. 

Hi there 
Yeah, it works well, and so far So good, I haven’t notice anything wrong during listening.

Thank you for your input!

@imhififan

I have converted the voltage to 120v. All is good except for one thing.

I used the 3-prong US power cord (the one with ground prong) to test.

When the amp is on and no music is played. If I stand close to the speakers, I can hear the white sound from the speakers.

I suspected this has something to do with ground prong so I removed it and tried again. The white noise disappeared completely. I played some test tracks for 3 hours and found the sound is exactly the same as when the amp was on Japan voltage.

I wonder if there is any way to fix the white noise issue with the ground prong?

Thank you.

Please note that, I filled the K3 and K4 holes with lead to strengthen the board. 

@quanghuy147 

If you disconnect ALL sources from the E600, connect ONLY the speakers to the E600 and use a 3-prong power cord to power up the E600, can you hear any noise if you turn up the volume?