Can US 220 Volts Be Used On European 220 V Amp?

@rhg3 

Yes.  Changing from 50 to 60 Hz or vice versa will impact the speed of a cd player, cassette deck, reel to reel and a TT.

@3zub 

Much easier and cheaper to see if the 220 or 240V amp is dual voltage.  Does it say 120V/240V or 110V/220V on the back of the amp by where the plug is?  If so, you may just be able to convert the voltage by using the correct fuse value and hitting an internal switch - but check with the manufacturer first as you may need a different transformer if it’s not wired for dual voltage.
 

If not dual voltage, you can get a Step Up Transformer, but buy one that is  at least 2-3 times the output wattage listed on the rear of the amp.  The most costly thing to do is have an electrician run a dedicated line and there are usually simpler more cost effective solutions.

lou_setriodes

Changing from 50 to 60 Hz or vice versa will impact the speed of a cd player, cassette deck, reel to reel and a TT.

That's only strictly true with synchronous motors. Others, such as DD, may not be affected. However, they may have other issues if not designed to run at the supplied frequency, such as overheating.

If you have a turntable with a synchronous motor, you can safely use a drive controller such as the VPI ADS to alter the frequency and, hence, motor speed. I think Walker also makes a unit and there are probably others.

@lou_setriodes, @cleeds  Thank you!

Seems it is not worthwhile to acquire an amp running 220V rated. Each of the options have their drawbacks.

Thanks to all for your replies.... hertz included. :)

@3zub 

Just curious, what 220 amp were you considering?

@cleeds 

someone told me of a cheaper workaround that works just fine.  I moved overseas 18 months ago, and this person told me he used this in Greece for several years with no issues.  Under his advice, I got a 220V power supply and a power inverter that’s used on boats and plugged the power inverter into the power supply.  Cost me all of $120 or so on Amazon and works like a charm.  All of the other devices to go from 60 to 50 Hz are all at least $500 which was almost as much as my Ariston TT.