Since my onboard sound chip is broken and I've also wanted to get the DT 770 Pro for a while, I'm forced to get an external AMP. But since Digitec, like every other store, "only" has the 250 Ohm version available, I'm a little confused. Do I need a 100 CHF Soundblaster on my PC or will a 20 CHF USB-to-AUX adapter do? Listening to music, a bit of gaming and Discord. I wouldn't need it for anything else.