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110v vintage receiver to 230v US to France step up transformer

Hello everyone.

I have a Marantz 2325 receiver (110v AC), which I am transporting to France.

I understand I will need a step up/down transformer to regulate the 230v local AC, and knowing nothing about these, I am hoping the experts out there can offer some advice / recommendations for a good quality transformer, as there is a wide range it seems.

Obviously I do not want anything that damages the receiver / speakers, or anything that is going to cause audio interference.

Thanks in advance!


roddo69
Post removed 
roddo69 OP
2 posts
 
" My personal suggestion is about double the power consumption of the receiver, which is 550 watts at 110-120vac, I believe."

How to best calculate watts?

My receiver is a very solid 125w, powering 2X 4 ohm AR10 speakers.

Is it better to overpower watts, or match as closely as possible to max requirement?
fiesta75
1,378 posts
 
On the back of the receiver, it will tell you the power consumption maximum. If you are driving 4 ohm speakers, I would go with about a 1000 watt transformer, just to have the added peak power when needed. If you don't listen loud, then you can get by with less. Most electronics, especially vintage, may have weaker filter capacitors in the power supply. I have found that LOW voltage is a problem for electronics in general. This is in addition to high or voltage spikes. Get a transformer the will keep voltage as constant as possible. You of course want something that is quiet for audio! More current is better for a supply, power = voltage X current.
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