Astell & Kern's latest mobile DAC brings 32-bit audio with fewer sacrifices

If you're determined to listen to high-resolution audio on your phone using high-end earphones, you'll want a DAC — and Astell & Kern thinks it has one of the better options. The company has introduced its third USB DAC, the AK HC3, and this one may finally nail enough features to satisfy most users. It promises very high-quality 32-bit, 384kHz audio like its HC2 predecessor, but you can finally use your headset's microphone. You won't have to choose between pristine sound and making phone calls.