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PS Audio DirectStream DSD Junior DAC
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PS Audio DirectStream DSD Junior DAC

£4,000.00   
£3,333.33 Exc. VAT |  
  

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Finish:  

PS Audio DirectStream DSD Junior DAC

Finishes: Black Or Silver

Introducing DirectStream Junior, a world class DAC based on the architecture of the Stereophile and Absolute Sound’s Product Of The Year, DirectStream. It is the pure DSD approach to digital audio playback.

DSJ uses the same FPGA architecture and customized code as PS Audio’s DirectStream DAC, and it is designed and built by the exact same team. The idea behind the DSJ was to offer near-identical performance at a fraction of the cost. How was this accomplished? Lower cost chassis and user interface.

DSJ, like DirectStream, is hand-written, discrete, perfection based conversion that uncovers all the missing information hiding in your digital audio media for all these years. CD’s, downloads, high-resolution PCM or DSD based media are expertly upsampled in the DSJ to ten times DSD rate and output as pure analog directly into your amplifier or preamplifier. Classic PCM-based DACS, including many of today’s DACS that can also process DSD, tend to cover up some of the subtle musical details buried deep within digital audio music; a problem inherent in their architecture. DSJ solves this problem by employing a pure DSD single-bit approach for both PCM as well as DSD media. This means that your entire library of music can finally reveal all the music and subtle low level details buried deep within its core.

Key Features

  • Pure 100% single bit DSD based D to A converter
  • Passive/active output stage
  • Resolution perfect volume and balance controls
  • Simple, direct signal path with only one master clock
  • High immunity to jitter from sources
  • Asynchronous high speed USB and Network access
  • Polarity Inversion
  • Play directly into your power amplifier or preamplifier

 

Physical

 
Unit Weight 18 lbs [8.1 kg]
Unit Dimensions 14” x 17” x 2.75” [ 36cm x 43cm x 6.98cm]
Shipping Weight 27 lbs [12.25 kg]
Shipping Dimensions 20.5”x 24” x 10” [52cm x 61cm x 25cm]

Power requirements

 
Input Power Model specific 100VAC, 120VAC, or 230VAC 50 or 60Hz
Power Consumption 30W

Digtial audio inputs

I²S, Coax, XLR Balanced, TOSLINK, USB, Ethernet

Sample Rates

I²S,S/PDIF, and USB -- 44.1kHz to 352.8kHz 16bit, 24bit, DSD 64, DSD 128
TOSLINK – 44.1kHz to 96kHz 16bit, 24bit

Analog Audio Output

 
Connector RCA/XLR Unbalanced /Balanced (X2)
Output level, low 1.41 Vrms(+5BV)/3.15
Output level high, maximum 2.81 Vrms (+8dBV)/5.3 Vrms (+12dBV)
Output Impedance 100Ω/200Ω
Frequency Response 20-20KHz +/- 0.25dB
THD+N @ 1KHz (full scale) <0.03%
Output Stage Active high current, high speed analog amps producing double rate DSD.

Data Handling

 
Format PCM or DSD
Sample rate (PCM) 44.1kHz, 48.0kHz, 88.2kHz, 96.0kHz, 176.4kHz, 192kHz, 352.8kHz
Word length (PCM) 16b, 18b, 20b, 24b
Data rate (DSD) Standard (2.8MHz) or Double (5.6MHz) DoP on all inputs as well as raw DSD on I²S inputs
Input jitter reduction Effectively 100%, residual immeasurable. No input PLLs, FLLs.
Input Processing 170MHz
Signal Processing 50MHz
Synchronous Upsampling, all inputs 28.224MHz
Digital Processing S/N ration >146 dB
Digital Volume Control Zero loss of precision
Analog Conversion method Delta Sigma (DSD) Single-bit double rate

I²S Digital Input

 
Connector HDMI
Format PCM or DSD. DoP on all inputs as well as raw DSD on I²S inputs

USB Digital Input

 
Connector USB “B” Type
Format PCM or DoP v1.1 (DSD over PCM)
Transfer mode Asynchronous

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