I have tried and tested a lot of headphones over the years and there is always some metric that they will fail to meet. When Sennheiser told us they wanted to send us a review unit for the GSP 670, we knew this would be a headphone that meant business and let’s just say we weren’t disappointed. Sennheiser has positioned itself as a leader in the luxury headset space and this is part of their ongoing efforts to make a name for themselves in the gaming market as well. Needless to say, this headset isn’t going to be cheap – its a Sennheiser after all.