Hello Jan_1893
The Logitech Z625 is controlled via a stereo jack plug 3.5 mm. There is also a stereo input with cinch Li + Re for the TV input. I have connected the Z625 to my PC, the sound is not bad, but I don't expect a perfect Hi Fi sound. With what you're doing, I would go for real speakers if the budget allows it. The prices for good speakers will be around CHF 1000. For high-end speakers (PIEGA Switzerland) the price level is certainly much higher. What you have to know is that the loudspeaker is the most important part of a music system and you should not save money here. It is better to save money beforehand and then enjoy the high tones with the great system. I know your questions have not been answered, but you could get the right answers from Pioneer and Logitech support. Best regards Eggi.