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Stepdown transformer 240v - 220v


Hi Guys
I have a integrated amplifier that is set for 220v European and i need to use it on a 240v outlet here in Australia , the amplfier transformer is rated at 500va and the amp is 100wpc into 8ohm
what size stepdown transformer would i need ?
i have seen a stepdown that is rated at 600w - 2.7 amps
and a 1000w - 4.5amps .
I wish to maintain the best sound from the amp and don't want to restrict its power supply .
sorry but i am a bit of a nuff with electronics.

Thanks for your help

Phil.

Regards
Phil
steam3642
elberoth2's avatar
elberoth2
1,223 posts
 
How old is the amp ? Europe has been 230V, not 220V, for the past 15 years. If it works with 230V, it will have absolutely no problem working with 240V (hey, I measure 236V at my AC outlet most of the time).
steam3642 OP
124 posts
 
Hi Elberoth
The amp is from the mid 90s , 1996 i believe ,
it has 220v stamped on the back , this is a review link to the amp in question.
http://www.tnt-audio.com/ampli/pa100_e.html
The amp is Italian -A.M.Audio PA-100.

Cheers
Phil.
elberoth2's avatar
elberoth2
1,223 posts
 
Phil,

I wouldn't worry too much about that. There are thousands of amps on the market in Europe, that were made with 220V in mind. Now we have 230V (which means that allowable voltage is deviation is 207-242V, according to the +5%/-10% rule) and you do not hear about the older stuff suddenly breaking.

Measure the voltage across your AC lines, and if it is less than 240V, I wouldn't worry one bit.
steam3642 OP
124 posts
 
Hi Elberoth
Been away on travels
checked the mains and it is a constant 244v - 245v
i have noticed that A.m audio's current amplifiers still have 220v stamped on the back ,

Regards
Phil.
steam3642 OP
124 posts
 
Does 220v with a squiggly line behind it and nothing else
imply it is 220v only ? as i have seen 220/240v on other equipment.
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