If you attach the setup to your PC, you run the USB cable from your computer to the amp, then an audio cable from the amp to the headset. Clearly, a truly dedicated audiophile could do a lot with the A40 + MixAmp.įor the average user, though, the USB and optical audio ports are the only really important ones here. The MixAmp comes with 3.5mm audio, USB, optical audio and daisy-chain cables in the box, but if you want a more complicated setup, you'll have to bring your own cables to the party. But then there are ports for optical audio, USB, auxiliary audio, streaming audio and - believe it or not - two FireWire daisy chains. There's a button that switches inputs between PS4 and PC (or Xbox and PC, depending on which version you buy.

The back of the MixAmp is where things get confusing, though. The A40's solid design has stood the test of time. It's all quite intuitive and easy to use. Between the dials, there's one button on top that switches between surround and stereo sound and one button on the bottom that switches among four equalization settings. There are still two dials: one for overall volume and one for game/chat volume, but this time, the chat dial is much bigger, which makes it easier to gauge your levels.

Astro a40 headset cord