Avarice

De-jittering and upsampling unit

It is no secret that considerable differences can be heard between the sound of various sources of digital signal (digital transports), connected to the same DAC.

These differences may be quite large, even though the source digital data remains the same. What is the cause of these differences? The answer is not altogether straightforward, the causes can be found in the instability of the clock signal, signal interference, earth loops etc.

The Avarice is a stand-alone device that is able to perfectly galvanically isolate the signal source from the DAC, significantly suppress any instabilities in the clock signal, and also to improve the CD signal by up to 4 times upsampling. You would be surprised to discover how signal sources that had been un-listenable previously such as cheap DVD players, PC sound-cards, media streaming devices or satellite receivers can play sound as top-class digital transports, when combined with the Avarice.




Features & Specifications

  • S/PDIF Input
    • protocol: S/PDIF (IEC958 / EIAJ CP1201)
    • type: transformer isolated 75Ω BNC coaxial, optical TOSLINK optional
    • format: linear PCM stereo
    • supported sampling rates: 32 / 44.1 / 48 / 88.2 / 96 / 176.4 / 192kHz
    • supported bit depths: 16-24bit
  • S/PDIF Output
    • protocol: S/PDIF (IEC958 / EIAJ CP1201)
    • type: reclocked transformer isolated 75Ω BNC coaxial
    • format: linear PCM stereo
    • supported sampling rates: 32 / 44.1 / 48 / 88.2 / 96 / 176.4 / 192kHz
    • supported bit depths: 16 / 24bit
  • Jitter Reduction
    • digital PLL signal recovery
    • two-stage output SPDIF reclocking
    • three data jitter reduction modes
    • ultra low-noise power regulators for clock and TX circuits
  • High Quality LPCM Synchronous Upsampling
    • custom developed Zero Alias Linear Phase Filter
    • 33bit arithmetic / 67bit accumulator
    • 2x and 4x single stage upsampling
  • User Configurable Functionality
    • Zero Alias LPCM Upsampling: enable / disable
    • Zero Alias LPCM Upsampling: 2x / 4x
    • output bit depth settings: 16 / 24bit
    • 2 user selectable LPCM Upsampling filter characteristics
    • data jitter reduction: OFF/stage 1-3
  • Power and Dimensions
    • connector: 2.1mm DC jack
    • rating: 8-15VDC / 1A
    • lxwxh: 120x78x43mm