This offering is for a set of 3 V5 Dual Supreme Sound Discrete Opamps.  This offering DOES NOT include the Asus Xonar Essence STX soundcard. 

The ASUS Xonar Essence STX is a leading audiophile sound card. It features a 124dbB SNR and a extreme low 0.0003% distortion. Great quality components and swappable opamps allowing for easy tweaking. It is why the Essence STX is actively discussed on audio forums such as Head-Fi.org (http://www.head-fi.org/t/421890/the-xonar-essence-stx-q-a-tweaking-impressions-thread)

Intrigued by its design and its many modification projects, we have decided to obtain one and see what we can do to it.

After the V5 Dual SS Op-Amps upgrade, this already great sound card got even better, from macro dynamics to micro details we were able to hear more and music became more balanced and lively.

Extra MKP Mod

Adding the extra 0.1uf MKP will bring more micro details and improved top end smoothness. A worthwhile upgrade with simple soldering.