The Class A+ Stereophile rated DirectStream DAC just got a whole lot better in the MK2 version by solving one of the biggest problems in digital audio: noise and jitter from incoming sources. Thanks to a radical new technology the DirectStream MK2 DAC eliminates incoming noise and upsetting jitter by galvanically isolating every input, output, ground, and power source of this remarkable new DAC. Once delivered through these clean and noise free inputs the MK2 converts any digital input format from CDs, servers, computers, and streamers, into a pure DSD format and outputs perfect analog directly to your power amplifier or preamplifier. Whatever the format, sample rate, or the medium, the DirectStream MK2 provides a pure output that fulfills the promise of high-resolution analog performance from digital sources. DirectStream MK2 is the work of PS Audio's digital audio guru, Ted Smith. Unlike conventional DACs that rely upon off-the-shelf DAC chips, the DirectStream MK2 is hand-written onto a pair of FPGAs (Field Programmable Gate Array). This allows far more precise and accurate processing of the digital signal, resulting in significantly better sound quality and upgradeability in the field. Periodically, Ted Smith's continual research into digital audio reproduction nets another breakthrough in performance. DirectStream MK2 DAC owners are given it free in the form of a downloadable upgrade. In this way, DirectStream MK2 owners can be assured that their unit will continue to improve over time. Hear what’s been missing in your music for all these years. If you know the sound of music and instruments and want to hear what’s been missing on your discs, then this DAC is right for you.