As a user of many Dunu products, it's really a pleasure to review the Vulkan. Configuration: 2* dynamic drivers with diameter of 8mm + 4* mid-high Knowles + 1* dual Supertweeter Knowles. And my favorite switchable plugs (Dunu's quick-switch plug system is always my favorite). According to Dunu...

For twenty years, DUNU has tackled some of the toughest challenges in the portable audiophile world. Our design and engineering team throws itself into materials research with aplomb but also engages in self-examination of the most critical light before gazing ever forward towards the future...