Hifiman Susvara 4-pin XLR Cable. This cable is a crystallized copper and silver combination cable with a 4-pin XLR plug and a fabric jacket. The cable is designed for HE series headphones such as HE400S, HE400i and HE560, HE1000 and Edition X.
Link to the manufacturer's page:
http://hifiman.com/products/detail/181
Technical information:
- Connector: 6.3mm connector
- Length: 3m
- Plug: 4-pin XLR
