DirectStream DAC

DirectStream DAC

Product Reviews:

	威達影音頻道 (Radar Audio YouTube Channel)
	新音響 (New Audiophile) No.203
	影音极品 (Super AV) Vol.278
	發燒音響 (Audiophile) Aug 2016

Introducing DirectStream DAC, both Stereophile and Absolute Sound’s Product Of The Year. Handwritten, discrete, perfection based conversion that uncovers all the missing information hiding in your digital audio media for all these years. CD’s, downloads, high-resolution PCM or DSD based media are expertly upsampled in the DirectStream to twenty times DSD rate and output as pure analog directly into your amplifier or preamplifier. Classic PCM based DACS, including many of today’s DACS that can also process DSD, tend to cover up some of the subtle musical details buried deep within digital audio music; a problem inherent in their architecture. DirectStream solves this problem by employing a pure DSD single-bit approach for both PCM as well as DSD media. This means that your entire library of music can finally reveal all the music and subtle low-level details buried deep within its core. Imagine going to a recording studio and listening to a master tape of any recording made. This is the experience DirectStream provides its owners who enjoy a renewed sense of enjoyment and discovery when listening to everything in their library: CD’s, downloads, DSD

Features:

• Pure 100% single bit DSD based D to A Converter
• Purely passive output stage
• Resolution perfect volume and balance controls
• Simple, direct signal path with only one master clock
• Immunity to jitter from sources
• Asynchronous high-speed USB
• Polarity inversion
• Play directly into your power amplifier or preamplifier
• Hear more than you ever imagined from CDs

Specifications:

• Unit Weight：22 lbs [9.97 kg]
• Unit Dimensions：14” x 17” x 4” [36cm x 43cm x 10cm]
• Digtial audio inputs：I2S(2), Coax, XLR Balanced, TOSLINK, USB, Network Bridge slot
• Upgrade to the PerfectWave Network Bridge II brings network connectivity to your DirectStream.  And now, Bridge II is full MQA, Tidal (including Masters), Spotify, VTuner, Qobuz, and Roon ready. 

• I2S, and USB -- 44.1kHz to 352.8kHz 16bit, 24bit, DSD 64, DSD 128
• TOSLINK – 44.1kHz to 96kHz 16bit, 24bit
• XLR (AES/EBU)S/PDIF (coax)-- 44.1kHz to 192kHz 16bit, 24bit, DSD 64
• 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&IM @ 1KHz (full scale)：<0.03%
• Output Stage：Passive audio transformer, fed by high current, high speed analog amps producing double rate DSD.

• 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.
• 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