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Experience a transformative sonic leap with Blue Sky, the free software upgrade for the DirectStream MK2 DAC. This stunning update enhances the FPGA with cutting-edge advancements, including 81-bit multiplies and extending the length and accuracy of the upsampling filters with custom-calculated coefficients. The result is a profoundly deeper soundstage, a strikingly quieter background, and unparalleled detail that reveals textures and layers in your music like never before. Hear beyond the surface—experience the hidden depths of every note with Blue Sky, available now for all DirectStream MK2 owners.
To learn more about the Blue Sky update click here: Learn More
Since its groundbreaking introduction 8 years ago, the PerfectWave DirectStream has stood alone as one of the most remarkable DACs ever built. We are excited to share with the world the next generation of this technological wonder, the PerfectWave DirectStream DAC MK2. Unlike the vast majority of high-end DACs based on off-the-shelf IC technology, DirectStream MK2 is handwritten, discrete, galvanically isolated, perfection-based conversion that uncovers all the missing information hiding in your digital audio media. CDs, streaming audio, high-resolution PCM or DSD based media are expertly upsampled in the DirectStream MK2 to twenty times DSD rate and output as pure analog directly into your amplifier or preamplifier. There has never been a better sounding DAC at anywhere close to the price of DirectStream MK2. The ground breaking DirectStream DAC was the first choice of thousands of critical listeners worldwide, and now with the introduction of the MK2, that legacy will continue.
Specifications
| Feature |
Specification |
| Physical Dimensions & Weight |
Unit Weight: 21 lbs (9.53 kg)
Unit Dimensions: 14” x 17” x 4” (36 x 43 x 10 cm)
Shipping Weight: 30 lbs (13.6 kg)
Shipping Dimensions: 20.5” x 24” x 10” (52 x 61 x 25 cm)
|
| Power Requirements |
Input Power: Model-specific 100VAC, 120VAC, or 230VAC (50Hz / 60Hz)
Power Consumption: 25W
|
| Digital Audio Inputs |
2 x I2S (via HDMI), 1 x Coaxial, 2 x XLR Balanced (AES/EBU), 1 x Optical (TOSLink), 1 x USB Type-B |
| Sample Rates & Formats |
Optical: PCM 16/24-bit (44.1kHz to 96kHz)
Coax / AES3: PCM 16/24-bit (44.1kHz to 192kHz), DoP64
Dual AES3: PCM 16/24-bit (44.1kHz to 352.8kHz), DoP64, DoP128
I2S / USB: PCM 16/24-bit (44.1kHz to 705.6kHz), DoP64, DoP128, DoP256, Native DSD64, DSD128, DSD256
|
| Analog Audio Outputs |
Connectors: RCA Single-Ended, XLR Balanced
Maximum Output Level: 4 VRMS (Balanced), 2 VRMS (Single-Ended)
Output Impedance: <100Ω / <200Ω
|
| Analog Performance |
Frequency Response: 20Hz – 20kHz (±0.25dB)
THD+N (@ 1kHz full scale): <0.1%
Output Stage: Passive audio transformer, fed by high-current, high-speed analog amps (producing double-rate DSD)
|
| Data Handling & Processing |
Formats: PCM (16, 18, 20, 24-bit up to 705.6kHz) or DSD (Standard/Double DoP, Raw DSD)
Input Jitter Reduction: Effectively 100% (residual immeasurable, zero input PLLs/FLLs)
Input Processing: 225.792MHz
Signal Processing: 56.448MHz
Synchronous Upsampling: 56.448MHz (for 48k/96k/192k base rates); 11.2896MHz (for all other rates)
|
| Digital Processing S/N Ratio |
Upsampling: >210dB
Volume Control & Sigma Delta Modulator: >330dB
|
| Digital Volume Control |
Zero loss of precision |
| Analog Conversion Method |
Low-pass filter DSD256 (quad-rate DSD: single-bit DSD at 11.2896MHz) |
| USB Transfer Mode |
Asynchronous |
