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Whatever the format, whatever the sample rate, DirectStream Junior (DSJ) provides a pure DSD based solution that fulfills the promise of high-resolution analog performance from digital audio. 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.
DSJ provides remarkable performance that uncovers all that buried treasure in your digital music collection. In fact, we’re confident enough to suggest you haven’t really heard what’s on your CDs and SACDs until you hear them reproduced through the DSJ. Connect DSJ to your NAS, computer, or favorite internet streaming station through its built in Bridge II, I²S through an HDMI cable to the PWT (or upcoming DirectStream Transport playing your favorite SACD), or any digital output source, and sit back and relive musical performances few have enjoyed at any price.
DSJ and its built in Network Bridge are ROON Ready with the latest firmware updates.
Features
- Pure 100% DSD-based D to A Converter
- Fully upgradeable through software releases
- Built in Bridge II Network streaming Audio input
- Resolution perfect volume and balance controls built in
- Upsamples PCM and DSD to 10x DSD rate
- DXD support
- Passively filtered high speed output stage
- Improves imaging and soundstage
- Simple, direct signal path with one master clock
- Handwritten filters, processors and upsamplers
- Immune to incoming jitter problems from different sources
- Increased digital headroom
- No off-the-shelf IC DAC chips used
- FPGA-based circuitry
- Uncovers musical details masked by typical PCM based processors
- 6 digital inputs
- Fully balanced from input to output
Specifications
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 |
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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 |
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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 |
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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 |
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Connector | HDMI |
Format | PCM or DSD. DoP on all inputs as well as raw DSD on I²S inputs |
USB Digital Input |
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Connector | USB “B” Type |
Format | PCM or DoP v1.1 (DSD over PCM) |
Transfer mode | Asynchronous |