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“A patented technique is used to re-create the audio data in a crystal-controlled low-phase-noise clock domain completely isolated from the clock domain of the transport medium.” Instead it uses something called a “hyper stream modulator” inside the chip to reduce jitter at the master clock. The Sabre DAC doesn’t re-clock in the traditional way. The USB connection is galvanically isolated, eliminating noise generated by your computer’s switching power supply and greatly improving sound quality.” Transformer-coupling each digital input eliminates noise, typically associated with ground problems and switching power supplies. Re-clocking is needed for computers and most streaming or hard-drive-based music servers because most have high levels of jitter and/or noise. The iDac also uses a linear instead of a switching power supply as well as eleven regulated sub-supplies to lower internal noise and interference.Īccording to Peachtree Audio, “the ESS Sabre32 DAC’s patented jitter-reduction circuit re-clocks the digital signal before passing it through a high-resolution 24bit/192kHz bit-perfect processor. Using the latest ESS 32-bit Sabre32 DAC chipset as part of a multi-layer DAC board that has over 450 individual components, Peachtree has developed a DAC that can cope with both high- and low-jitter sources. But the iDac needs this plethora of inputs to fulfill its true function-a one-box hub for all the digital music sources on your computer desktop or in your living room.Īs you would expect from a current generation D/A, the iDac supports 96/24 via its USB input and 192/24 via S/PDIF.
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The iDac also has provisions for two S/PDIF, two TosLink, and one USB input. And while the dock is part of its feature set, it’s far from the whole story. As you might surmise by its name, the Peachtree Audio iDac is a DAC (digital-to-analog converter) that has an iPod dock.