Logitech Z-5300 - mains hum - guess dry capacitors

Hi, does anyone know the exact types of capacitors installed in the Logitech Z-5300 subwoofer?

Would love to dehum my Z-5300 - it's definitely a mains hum coming from dry rectifier capacitors.

Does anyone have any pictures - instructions - or can contribute any other material - I will be happy to take pictures of the repair and make them available.

Thanks a lot :)