Cirrus Logic would scratch their collective head if they saw their flagship DAC tucked away in the tiny Micro DAC. The CS4398 is the best performing DAC chip in their line-up with numbers like 120dB dynamic range and -107dB THD+Noise. And it's not alone in there: the Micro DAC has independent power supply regulators for analog and digital sections; digital listening and decoding is done by the CS8416 digital receiver chip before passing numbers off to the DAC; a TI PCM2902 handles the computer USB to S/PDIF conversion before sending the number to the DAC (the analog outs of the 2902 aren't up to the task for this sweet DAC); local decoupling with ultra-low ESR polyphenylene-sulfide film capacitors is provided at each active analog stage; resistors are low-drift, low-noise, 0.1% metal film parts throughout; and a multi-layer circuit board holds it all together while keeping the signals apart. Hard to believe we fit all that in there!
THD at 1V output: <.002
Weight: 8.8oz (250 grams)
Frequency Response: 10-50k, ±0.3
Amplifier Group: The Micro Line
Input Impedance at 1kHz (ohms): 70k