its not usb but a strange unidentified plug, sadly the buttons link are next to it so i guess that means its a wireless only
ya its a very secret plug hiden in the ventilation, everybody aims a the serial number and gets cut off on photos here's the secret door, i guess would be more encouraging if it looked like a RCA or something similar.
Just trying to find a local cheap sub for a family setup that doesnt care much about bass sounds in general,
and its a tutti frutti of elements being all different brands.
its cheap 20 euros and its available locally or going into the nature cause it lost its 2nd bar element.
Is there a good vintage cheap sub that blows out the doors? on the second hand market.
love this nad sound, not used to semi-upper sounding sound.