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PS Audio DirectStream DAC MK1
PS Audio DirectStream DAC MK1
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Posted On 3.02.2026
Last Update On 3.02.2026 PS Audio DirectStream DAC MK1
PS Audio DirectStream DAC MK1 PS Audio DirectStream DAC MK1 PS Audio DirectStream DAC MK1 PS Audio DirectStream DAC MK1 PS Audio DirectStream DAC MK1 PS Audio DirectStream DAC MK1
Description Original Description is in English, other language texts are translations and can contain errors. EnglishDeutschSpanishTurkish PS Audio DirectStream DAC MK1 DAC, perfect, remote control.

The PS Audio DirectStream DAC MK1 is a device that marked a turning point in the digital world; it radically departs from traditional DACs based on "off-the-shelf" chips (such as the ESS Sabre or AKM) using a custom-programmed FPGA (Field Programmable Gate Array).

Architecture and Conversion

Conversion Method: Proprietary single-bit Delta-Sigma (DSD), FPGA-based.

Upsampling: All inputs (PCM and DSD) are synchronously upsampled to 28.224 MHz (10x the standard DSD rate).

Final Processing: The signal is reduced to Double Rate DSD (5.6 MHz) before analog conversion.

Output Stage: Passive transformer (Jensen), driven by high-current analog amplifiers.

S/N Ratio (Digital): >146 dB.

Volume Control: Precision "zero-loss" digital (50-bit).

Digital Inputs and Resolutions

I2S (via HDMI) x2 PCM 352.8 kHz / 24-bit DSD128

USB (Type B) PCM 352.8 kHz / 24-bit DSD128 (DoP)

XLR (AES/EBU) PCM 192 kHz / 24-bit DSD64 (DoP)

Coaxial (RCA) PCM 192 kHz / 24-bit DSD64 (DoP)

Optical (Toslink) PCM 96 kHz / 24-bit

Network (Bridge II), not installed

Analog Outputs

Connectors: 1 pair XLR (balanced), 1 pair RCA (unbalanced).

Output Level (High): 2.81 Vrms (XLR) / 1.41 Vrms (RCA).

Output Level (Low): 0.28 Vrms (XLR) / 0.14 Vrms (RCA). Useful for interfacing with high-gain preamplifiers.

Dimensions: 430 mm (W) x 100 mm (H) x 360 mm (D)

Weight: 13.5 kg (net unit).

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