The 'desktop' DAC in the new HeadRoom Portable Desktop Amp is indeed a uniquely specialized version of our older 'desktop' DAC installation, similar to what was employed in our HeadRoom 'Desktop Amp' line of yore.... The 'desktop' DAC topology now only occurs in this new HR Portable Desktop unit.
The desktop DAC uses Cirrus Logic’s flagship CS4398 24bit/192kHz, 120dB dynamic range digital-to-analog converter circuit. Coupled with extensive power supply isolation & regulation, this stage takes virtually any digital input audio source(s) and turns it into an excellent audiophilic listening experience. The desktop DAC board uses the well-regarded Burr-Brown 134 op-amp strictly in single packages; only metal thin film resistors and polyphenylenesulfide (poly film) capacitors are allowed anywhere near the audio circuits. Three low-noise, ultra-low dropout power supply regulators isolate the various digital, analog, and mixed signal circuits.
Cheers,
Jorge
HR Sales/Product Manager
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