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Ok.... If you don't know then you have to ask. What needs to be done if you have a European (230) v amp , but would like to use it Stateside. I mean does one need a dedicated line with some kind of transformer ? Or is the problem greater than any solution ?
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There is another option -
Though this would require an Electrician (Licensed preferably), wire an outlet for 230 VAC and get a plug to match installed on the amp.
This will consume two 'standard' circuits from your incoming mains distribution panel. Yes the actual voltage may range from 228 - 240VAC, as us mains voltage is provided at 114 - 126VAC, however this should not be an issue, as the delta is less than 5%, and most mains vary closer to 10%.
The other issue is the 50Hz versus 60Hz on the AC frequency - this should not be a problem for an amplifier - could be a problem for a turntable or clocking device where the unit is relying upon the mains frequency for accuracy (generally a bad idea).
Happy listening,
If its a dual primary power transformer, having TWO windings of about 115 VAC plus 115 VAC, these two are connected in series to obtain 230 VAC. For 115 VAC operation, both windings can be placed in parallel, with attention paid to proper phase, and it will be quite fine.
If the 230 VAC primary is one winding only, you will need to replace the single winding 230 VAC power transformer with a suitable new power transformer. Choose from the Hammond line. Use the biggest one that fits on the chassis' space.
I thought you had amps resolved !!??
Jeff Medwin
My brother is on his way home from living in Capetown. Wanna hear his gear while he stays with me a while. Should be fun.
Probably the most basic and flexible device is one of the Signal Transformer Company's "DU" series transformers. They have four windings, two on each side, of 0-100-110-120 VAC and you can get what you need out of all the taps.My favorite is the DU-1/2, and a larger DU-1 may be OK, will not diminish dynamics much. There are numerous DU-1/4s on eBay, but that will diminish dynamics some. Check out all of Craigslist, if you buy one right, you can resell it. Maybe I have to ship you one of my spare DU 1/2s and you do postage both ways, about $24 in a medium flat rate box.
Jeff Medwin
Edits: 07/10/12
I'm not sure, but can this be the answer: The Transcendent Sound Balanced Power Supply
http://www.transcendentsound.com/Transcendent/Transcendent_Sound_Power_Supply.html
Input: 115V with 115V or 230V Output
Input: 230V with 115V or 230V Output
Me too, I want to know the answer because the price of the Melody 811 SET 230v is too good:
http://www.cattylink.com/an211.html
Contact the Manufacturer and they will show you how to convert the internal wiring, so that it can be used with U.S. 110 volt. I've done this on a lot of gear and it usually involves just soldering a couple wires.
Cut-Throat
Ok. I will investigate.
To rewire, it must have a dual primary power transformer. Not every mfr uses them, but most mfrs do make amps for 120 and 230VAC, even if they use a different power transformer to two this.
Observe, don't think
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