When you "noisy" do you mean "hum" or "hiss" ?
Cheers George
Voltage converter 110-220V
I have a high end preamp 220V from Korea.
When I used this audio with transformer 110-220 3KW, I could hear noisy and it became worse. I sent it back to Korea(220V) to repair it but in Korea 110V there are not any noisy and no problem at all.
I guess the step up voltage 220v is causing the noisy.
Please help to solve this matter if anybody has experienced the same problem.
I wonder if some special transformer is necessary.
Thanks.
When I used this audio with transformer 110-220 3KW, I could hear noisy and it became worse. I sent it back to Korea(220V) to repair it but in Korea 110V there are not any noisy and no problem at all.
I guess the step up voltage 220v is causing the noisy.
Please help to solve this matter if anybody has experienced the same problem.
I wonder if some special transformer is necessary.
Thanks.