Stepdown transformer 240v - 220v

Thanks for the link Elizabeth
starting to get my head around the workings of stepdowns
my main concern is getting a stepdown unit that will not bring a audible reduction in dynamics hence my confusion as to what size to buy , I am not much of a electronics man
just a enjoy the music kinda guy :)

Cheers
Phil.
Tasmania . Aus

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.

Hi Ng
Thanks for the link to the Tortech site
What is th difference between a autoformer/converters and say a Real transformer ? as stated in your post .
They have a 2400v - 11 amps unit as well for around $20.00 more.
Any real advantage with the 2400-11amps over the 2000w -9amp
I have read that stepdown transformers can degrade the sound of a amplifier so just don't want to make a mistake with a purchase.
In general my outlet reads between 235v & 245v depending on the day and different times , one day i checked and it was 225v ,came back 30 minutes later and it was back up to 241v
We have a power pole transformer 2 doors up on the road side.

Cheers
Phil.

Thanks Ng
Will look to purchase a Tortech unit
as they are local here in Australia and at around $200
affordable .

Cheers
Phil

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.

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.

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.

Received a response from the manufacturer and was informed

Nominal supply 220 VAC

Power transformer from 245 to 220 VAC minimum 1000VA.