Reference PerformanceThe DAC3 delivers outstanding musical detail and precise stereo imaging. It employs an advanced high-headroom digital filter design, and a high-sample-rate Asynchronous USB Audio interface. All inputs are fully isolated from interface jitter by Benchmark's new UltraLock3™ jitter attenuation system.Internal digital processing and conversion is 32-bits, and this processing includes 3.5 dB of headroom above 0 dBFS. This headroom prevents the DSP overloads that commonly occur in other D/A converters.4 balanced 32-bit D/A converters are summed together to create each balanced analogue output. This 4:1 summation provides a 6dB noise reduction and gives the DAC3 industry-leading performance. Box Contents: DAC3 B IEC power cable USB type A to B data cable User manual & safety instructions