PS Audio DirectStream DAC MK1 Refurbished
Description
DirectStream DAC MK1 - Refurbished
Subject to availability - 12 months warranty
You have 14 calendar days to audition a Refurbished item from the date you received it. For more information on PS Audio Refurbished units click here.
Design
Application
Technology
Class A+ Stereophile rated DirectStream DAC converts any digital input format from CDs, servers, and streamers, into a pure DSD format and outputs near-perfect analog directly to your power amplifier or preamplifier. Whatever the format, sample rate, or the medium, DirectStream provides a pure output that fulfills the promise of high-resolution analog performance from digital sources. DirectStream is the work of digital audio genius, Ted Smith. Unlike conventional DACs that rely upon off the shelf DAC chips, DirectStream is hand written onto a FPGA (Field Programmable Gate Array). This allows far more precise and accurate processing of the digital signal, resulting in significantly better sound quality and upgradeability in the field. Every six months or so, Ted Smith's continual research into digital audio reproduction nets another breakthrough in performance. DirectStream DAC owners are given it free in the form of a downloadable upgrade. In this way, DirectStream owners can be assured that their unit will continue to improve over time, and never become obsolete. Hear what’s been missing in your music for all these years. 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.
Specifications - DirectStream DAC
Physical |
|
Unit Weight | 22 lbs [9.97 kg] |
Unit Dimensions | 14” x 17” x 4” [ 36cm x 43cm x 10cm] |
Shipping Weight | 31 lbs [14 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 |
Digital audio inputs |
I2S(2), Coax, XLR Balanced, TOSLINK, USB, Network Bridge slot |
Sample Rates |
I2S, and USB — 44.1kHz to 352.8kHz 16bit, 24bit, DSD 64, DSD 128 (I2S DSD 256 with Sunlight update)
|
Analog Audio Output |
|
Connector | RCA/XLR Unbalanced /Balanced (X2) |
Output level, low | 0.282 VRMS Balanced 0.141 VRMS Single Ended |
Output level high, maximum | 2.818 VRMS Balanced 1.414 VRMS Single Ended |
Output Impedance | 100Ω/200Ω |
Frequency Response | 20-20KHz +/- 0.25dB |
THD+N @ 1KHz (full scale) | <0.03% |
Output Stage | Passive audio transformer, fed by 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 as well as raw DSD on I2S and USB 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 ratio | >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 |