Mini sound card under test: EPOS│SENNHEISER GSX 300
This $200 gaming sound card gives you the best audio available for less | ZDNET
EPOS GSX 300 External Sound Card Review - PC Perspective
EPOS | Sennheiser GSX 1200 PRO hands-on: Innovative touch controls, no software, excellent sound - NotebookCheck.net News
GSX 1200 PRO from EPOS | Dominate the game with exceptional audio control
EPOS I Sennheiser GSX 300, Gaming Dac/External Sound Card with 7:1 Surround, High Resolution Audio EQ presets for Gaming, Movies and Music - Audio Gaming Amplifier for PC and MAC Compatible, Black -
Mini sound card under test: EPOS│SENNHEISER GSX 300