Hi, I would like to connect music boxes (with copper cables) to a laptop, does anyone know what kind of amplifier I need?
Every amplifier goes, the speakers to the amplifier and the jack from the laptop to the amplifier.
As I know, every amplifier has the right connections
Nothing works without an amplifier. Either you use active speakers or an amplifier. With PC boxes (active) you have already installed the appropriate jack plug, with "normal" active boxes (hi-fi area) or an amplifier you need an adapter cable jack plug to cinch plug.
Any HiFi amplifier.
E.g. The stereo amplifier module 2x15W for around € 15 from pollin.de.
Don't forget to order a suitable 12V power supply about 3.5A at the same time.