High-Definition audio like never before. A fantastic dynamic range means more of everything. More detail, more musical, and most of all: more fun. When it's relaxation time - your ears will be treated to a rarefied, luxurious sound. All your music will sound outstanding on the iDAC. Resolution matters. Yet the realism of playback matters more. These are all determined by a number of factors, for example, the USB interface technology, power supply quality, and the analogue output stage. The iDAC uses a highly-advanced Asynchronous/Jitterless USB interface (trickle-down technology from AMR's high-end audio equipment) to give not just good, but perfect audio transfer. With 3 dedicated internal power supplies, they provide a clean environment for the DAC to produce high-resolution audio. Augmented by the ESS Hyperstream Chipset - typically reserved for expensive high-end audio equipment, music reproduction is startling realistic. Along with standard RCA outputs you also get a powerful 150mW headphone amp and an analog volume control used for heaphone listening.