Audio Research V70 mains transformer rewiring for 220 volts.

[muizel]

Hello I have an arc V70 and it is imported from the USA the mains voltage is for 110 volts and over here we have 220 volts. I am operating this amp with an extra 220/110 volt transformer in between. Yesterday I had a look on the schematic for the arc classic 60 wich should be largely the same and I saw that the primary of the mains transformer has two 110 volt windings so a rewire for 220 volts should be possible now I hope that this is also possible for my V70 unfortunately there is no where a schematic to be found on the internet for the V70. I hope that there is someone to help me out on this one.

Thanks Rene.

[HollowState]

The easiest thing to do is email AR and ask them. But according to the unofficial Audio Researsh Data Base website power requirements: "105-125VAC 60Hz (210-250VAC 50Hz) 500 watts at rated output, 700 watts maximum, 370 watts at idle." So it would appear that it is dual voltage rated. Why don't you open it up and look at the power transformer connections or wires. If it's dual voltage, the two primaries should be in parallel for 110V.

[muizel]

Originally Posted by HollowState

The easiest thing to do is email AR and ask them. But according to the unofficial Audio Researsh Data Base website power requirements: "105-125VAC 60Hz (210-250VAC 50Hz) 500 watts at rated output, 700 watts maximum, 370 watts at idle." So it would appear that it is dual voltage rated. Why don't you open it up and look at the power transformer connections or wires. If it's dual voltage, the two primaries should be in parallel for 110V.

Hi Hollowstate,

Thanks for the reply and that is a very good suggestion tomorrow I will have a look inside, if ther are 2 primaries.

Thanks