Connection problems

Hello, Speakers - Hivi Swans D1200 (No sub-out) -> connected to my amp ifi Zen Dac V2 via RCA -> Connected to my PC My speakers have 2 line, 1 coaxial and 1 optical inputs ifi zen dac v2 has 1 line input I want to buy a subwoofer but I don't know how to connect a subwoofer without a sub-out...

So my problem started two days ago at the time of writing this. I use my phone which i connect to my pc using an usb cable, and use that to connect to the internet, so usb tethering. So more on the problem, i have tried some speedtests and it is fine, around 70mbps download speed, but whenever i...

Okay, so a little back ground.. I have a Lenovo E540 with Windows 10. I noticed this error yesterday. I've been googling this alot, and here's what I've tried so far... First thing I did was run Maleware bytes. After that I did IP config /release and renew, that didn't work. I found...