New for 2016 the AudioQuest DragonFly Red USB digital to analogue converter / preamp / headphone amp. For improved performance DragonFly Red incorporates a 32-bit ESS 9016 Sabre DAC chip which employs minimum phase filtering for naturally detailed more realistic sound. It outputs 2.1 volts meaning that DragonFly Red is compatible with an even wider range of headphones including power-hungry low-efficiency models. This higher output is an important advantage with some of the more inefficient headphones on the market.