EPOS | Sennheiser GSX 300 External Gaming Sound Card Review

Amazing virtual surround can’t save this outdated design

Alex Rowe
8 min readMar 10, 2021

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Photo taken by the author.

Back in 2018, Sennheiser quietly shed their entire gaming division to their long-time external partner Demant, who had been silently designing all of Sennheiser’s headset products. I was shocked at this. Gaming and bluetooth are huge growth sectors in audio right now, and while Sennheiser couldn’t have seen 2020’s work-from-home virus saga coming, it’s still wild to me that they got out of headsets altogether while others are seeing explosive sales growth.

Not only did EPOS get the rights to all of Sennheiser’s existing gaming headsets they had helped design, they also received license to use the brand name in marketing those older products until the EPOS brand can be better established going forward. That’s why this gaming headset amplifier has such an awkward name with two companies in front of it.

Unfortunately, in spite of amazing top-tier sonic performance, the awkwardness doesn’t stop with the name.

I bought this amplifier with my own funds. I don’t receive a kickback if you decide to buy one, and none of the links in this article are affiliate links. I wasn’t sponsored to write this, and I had full editorial control over this article.

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Alex Rowe

I write about gaming, tech, music, and their industries. Audio producer, video editor, and former magazine critic. Look mom, I’m using my English degree!