Speaker - is it possible to use it?

Hello, 

is it possible to use this speaker or a similar one for theremin? On this site, there are more specifications, but I am not really sure if it's compatibile with theremin. Or what similar speaker do you recommend? I don't really need amp with many functions, just good speaker... Thank you.

https://www.muziker.cz/monacor-sph-174ke?gclid=CjwKCAiAleOeBhBdEiwAfgmXf12aRir9hGXWKn1pwozXM0USE7Q7Xglw_4c90lRXIlNNzTQ6C6WUkRoCJaMQAvD_BwE 

Hi Martin21, you can't just connect a bare loudspeaker like the one you linked to directly to a theremin, it does need an amplifier in between. A powered loudspeaker box like a computer loudspeaker or an active monitor-loudpeakerbox can work, those have an amplifier built in.