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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
steam3642 OP
124 posts
 
Some further info on the amplifier :

2x100W @8ohm and a 2x220W @2ohm output power with a 50 A (!!!) current peak.
Another peculiarity of this amplifier is that it works in class A up to 2x5 Watts @8ohm.
ngjockey
1,042 posts
 
Minimum I would recommend for ANY amp is 2KVA. Maybe 1.5 KVA for an autoformer but I would rather have the isolation of secondaries.

2000W / 240V = 8.33A

http://www.ebay.com/itm/Voltage-Step-Down-UP-Transformer-220V-240V-100V-2000W-Europe-China-etc-/161095551061?pt=Travel_Adapters_Converters&hash=item25820b0855
ngjockey
1,042 posts
 
Or

http://www.stepdowntransformer.com.au/product/ae2k/

These have got to be autoformers/converters. Real transformers with primary and secondary windings would be a lot heavier.

The following are transformers but don't have an enclosure and require proper wiring/outlets.

http://www.signaltransformer.com/home/step-updown-power-isolation/
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