Works beautifully with the Sennheiser GSP 600... AAA+++

The GSX 1000 proves itself much more than a simple headphone amplifier. It also provides a convenient desktop centre for sound output thanks to its USB power supply and housing, featuring convenient volume control and user-friendly switching between speaker and headphone selections.

Bought this and was really happy with the sound. Then I rebooted, and it lights up and then turns off. Researched all fixes, registry edits, power management and still doesn't automatically turn on with a reboot. Have returned it and same problem.

I've had the GSX1000 Amp (and GSP500 headset) for about a year and they work extremely well together. The virtual surround sound (7.1) from the Amp is exceptional. The main game I have been playing is Realm Royale which produces very complex "3D / 7.1" sounds - I can hear all the sounds clearly and tell what direction footsteps, mounts, gunshots are coming from etc. Even though the 7.1 surround sound is simulated (Headphones only have 2 speakers after all) the sound is very realistic and sound direction is easy to determine after a few hours usage (I think one's ear (brain) has to learn how to use the virtual sound?). The Amp works well with my 2017 iMac (and Win10) games. The controls on the Amp are amazingly well setup and easy to use. I had no trouble setting up the amp under Win10, and slight problems on my iMac. If the instructions are followed very closely they get you there! Once setup the Amp has worked faultlessly every time under Win10 and MacOS.

You need to get this. You need this. This will transform your listening experience.