I would like to know how much is safe, using for example:
Set of 2 STEREO PC SPEAKERS (2x5w) , which are connected by one 3.5mm jack and takes power via USB port, and MINI STEREO HI-FI (2x20w) , which is connected via AUX and 3.5mm jack.
Since there is only one 3.5mm (stereo) audio output in pc...