The Fostex TH900mk2 is the second generation of the TH900, one of the most renowned premium dynamic headphones in the market, which newly features detachable connectors for replacement of the standard unbalanced cable (equivalent to model ET-H3.0N7UB). The optional balanced cable, model ET-H3.0N7BL is also sold separately to meet growing demands for balanced connection with various headphone amps offering balanced 4-pin XLR out.