For full user guide go to

GSX Headset Amplifier

www.sennheiser.com/gaming-downloads

For firmware upgrade go to

www.sennheiser.com/gaming-downloads

GSX 1200 Pro Headset Amplifier

Sennheiser Communications A/SIndustriparken 27, DK-2750, Denmarkwww.sennheiser.com

Printed in China, Publ. 06/16, A01

Quick Guide

Connect to a computer

Activate 7.1 surround sound

Change the speaker settings to 7.1 surround sound: see User Guide or online helpof your operating system.

2s dims LEDs light up shortly