PS AUDIO PERFECTWAVE DIRECTSTREAM DAC

Second-hand, in mint condition, without scratches. Without its original package.

Digital-analog Converter with perfectwave bridge

An extraordinary and innovative 100% pure DSD digital-to-analog converter with upsampling for all digital formats, PCM and DSD (DSD 10x). Proprietary FPGA (Field-Programmable Gate Array) converter with filters, processors, and upsamplers specially designed from the ground up.

The DirectStream DAC, Class A+ rated by Stereophile, converts any digital format from CDs, servers, and streamers into a pure DSD format, providing a near-perfect analog output directly to your power amplifier or preamplifier. Regardless of the format, sample rate, or medium, DirectStream delivers a pure output that guarantees high-resolution analog performance from digital sources. Designed by digital audio genius Ted Smith, unlike conventional DACs that use off-the-shelf DAC chips, DirectStream is hand-programmed onto an FPGA (Field-Programmable Gate Array), allowing for much more precise and accurate digital signal processing, resulting in significantly better sound quality and future upgradeability. Every six months or so, Ted Smith's ongoing research into digital audio leads to new performance improvements, available for free to DirectStream owners through downloadable updates. This ensures that DirectStream owners can be confident that their device will continue to improve over time and will never become obsolete.

Digital volume control with zero loss of resolution, channel balancing, phase/polarity control, and a direct signal path with a single master clock. This DAC is immune to input jitter, regardless of the source.
Output via passive transformers, fully balanced from input to output. Seven digital inputs, single-ended RCA and balanced XLR analog outputs. It can be connected directly to power amplifiers or to a preamplifier. Color touchscreen display.

The DS DAC is an extremely enjoyable piece of gear that allows for a deep connection to the music, thanks to its ability to render music as natural and real, with refined tonality, dimensionality, dynamics, and power.

Technical Specifications:

Physical Features

• Unit Weight: 9.97 kg
• Unit Dimensions: 36 cm x 43 cm x 10 cm

Digital Audio Inputs

• I2S (2), Coaxial, XLR Balanced, TOSLINK, USB, Network Bridge Slot

Sample Rates

• I2S and USB: 44.1 kHz to 352.8 kHz 16bit, 24bit, DSD 64, DSD 128 (I2S DSD 256 with Sunlight update)
• TOSLINK: 44.1 kHz to 96 kHz 16bit, 24bit
• XLR (AES/EBU) / S/PDIF (Coaxial): 44.1 kHz to 192 kHz 16bit, 24bit, DSD 64

Analog Audio Output

• Connector: RCA/XLR unbalanced/balanced (x2)
• Low Output Level: 0.282 VRMS balanced, 0.141 VRMS unbalanced
• High Output Level, Maximum: 2.818 VRMS balanced, 1.414 VRMS unbalanced
• Output Impedance: 100?/200?
• Frequency Response: 20-20 kHz +/- 0.25 dB
• THD+N at 1 kHz (Full Scale): <0.03%
• Output Stage: Passive audio transformer, powered by high current, high-speed analog amps producing double-rate DSD

Data Handling

• Format: PCM or DSD
• Sample Rate (PCM): 44.1 kHz, 48.0 kHz, 88.2 kHz, 96.0 kHz, 176.4 kHz, 192 kHz, 352.8 kHz
• Word Length (PCM): 16b, 18b, 20b, 24b
• Data Rate (DSD): Standard (2.8 MHz) or Double (5.6 MHz) DoP, as well as raw DSD on I2S and USB inputs
• Input Jitter Reduction: Effectively 100%, residual immeasurable. No input PLLs, FLLs
• Input Processing: 170 MHz
• Signal Processing: 50 MHz
• Synchronous Upsampling, all inputs: 28.224 MHz
• Digital Signal-to-Noise 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