Genelec Community Forum has been archived

Thank you for all the years of Community discussions and activity!

The time has come for us to retire the community forums, but we will keep everything available for reading. There is a lot of valuable content written over the years, and you'll be able to access all of that. However, no new posts can be written, or old posts modified.

If you have questions, we recommend you use the Support function on the bottom right corner to contact our Customer Support directly.

Alternatively, if you wish to engage in a community discussion with other people, there are many active forums available. There is also an active, fan managed GENELEC COMMUNITY in Facebook, and many Genelec employees are active in the discussions there.

We are sorry for any possible inconvenience this may cause you, but we hope to hear from you through the other channels mentioned above.

Genelec Support

Message Boards

120Hz hum when using 230V rated G1s on 110V

marikka, modified 4 Years ago.

120Hz hum when using 230V rated G1s on 110V

Youngling Posts: 1 Join Date: 2/8/18 Recent Posts

I have Genelec G1 (G1AWM-6) speakers, which to my understanding, are the 230V-only rated "A" versions. I've recently moved to the US, and tried these directly on 110V mains, using a simple plug adapter. I can play music, but if my source (iPhone) is completely muted, or even if nothing is connected to the input, I get a very noticeable 120Hz background hum noise.

What causes this hum, and would using a step-up voltage transformer (e.g. https://www.amazon.com/Transformer-American-European-Converter-approved/dp/B00HAQT4QI) fix the problem?

Thank you for your help!

jani-oksanen, modified 4 Years ago.

RE: 120Hz hum when using 230V rated G1s on 110V

Jedi Master Posts: 449 Join Date: 3/30/17 Recent Posts

Hello,

230V monitors should not be used in 120V. Step-up transformer can be used to make monitors work correctly and to remove the hum. Step-up converter for two G One (A) needs minimum of 140W of power.

Best Regards,
Jani Oksanen
Customer Support