Dear Sirs,


On May 15, 2025, I purchased two Fosi V3 Monoblock speakers with a 48V 10A power supply and filter. For a month and a half, the speakers have been making a noise every time I've turned them off, regardless of one or the other, so I understand it's an issue with the power supply or the filter.
The noise hasn't been making for a few weeks, but I don't know if it could start again or damage my speakers.
I've contacted you up to five times in the last two months: once through Amazon (the only solution was to return everything), twice through this email (I haven't received a response), once through the website's contact form, and once on Facebook...


This is the sixth time I've tried to get a response from support... to find out if this problem can be fixed so it doesn't happen again or if it could damage the speakers... while I try not to use it too much, awaiting your response.





Juan DP