Can a european amp version 240 be changed to us 120?


I Think its just a switch inside unit. 
emergingsoul
Often times the power transformers will have both 110 volt and 220 volt windings.

A long time ago my tech converted a Micro Mega Classic Solo CD player from 220 to 110 for me. He didn’t consult MM because he was a good tech and figured it out on his own. It’s usually an easy swap if you know what you are doing.

That MM Classic Solo was an excellent CDP and I enjoyed my for many years.


Often amps do have 220-110 switches which are usually on the back but I have seen them inside the unit too. It’s fairly common on Chi-Fi gear.

Good luck and good listening!