Description
PREOWNED - $6000 LIST! - FULLY TESTEDRemote includedDesign DirectStream converts every input signal, both PCM and DSD, to single-bit, high sample rate 20X DSD signal. Use of a FPGA rather than an off the shelf DAC chip provides immense processing power, resulting in complete lack of digital glare, and allows the owner to download OS updates as they are released. Application DirectStream is the heart of a reference quality digital audio based system. It handles all PCM sources up to 352.8 kHz, and DSD 64 and 128 (USB and I2S) and DSD256 (I2S only, with the Sunlight OS). Its zero-loss digital volume control allows it to be used as a preamplifier, directly feeding a power amp. Include the Network Bridge to stream Qobuz, Tidal, and Spotify. Roon ready. 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 Smiths 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. Converting the ones and zeros of digital audio into music we cannot distinguish between live or recorded is an art. Most of today’s sophisticated DACs are IC based instruments using off-the-shelf-chips that rely upon Multi-bit Sigma-Delta functions to process the incoming digital audio. While these are relatively simple to design and produce, they rarely give the best sonic results. DirectStream takes a different approach by first converting all digital audio signals into a purer form of digital audio known as DSD. DSD is a far more analog-like encoding and decoding process than the classic CD based PCM. In fact, most modern A/D converters used to make recordings are DSD based already. DirectStream takes both PCM and DSD, upsamples the data and converts to single-bit DSD and then outputs pure music regardless of input format for the data. The results of this design can be heard in increased musical information presented to the listener at every opportunity. When you listen to DirectStream you never are accosted by added bright, hard glare in the music as happens with many active designs. Instead, clean, pure music flows from the DirectStream directly to your preamplifier or power amplifier. Most modern DACs use some form of active tube or solid state output stage to amplify, filter and drive the DACs output. DirectStream takes a different approach: passive. In one of the simplest, elegant and musically correct executions of an output stage, high-speed class A video amplifiers are used as the final switch feeding a high-performance passive audio output transformer. The transformer is specially designed to act as both the galvanic isolation between the DAC and the outside world as well as the primary low pass filter required to present a perfect, low distortion, low noise output signal that is fed directly into the DirectStreams zero-loss volume control. Designer Smith perfected a 100% bit-perfect volume and balance control that’s built into DirectStream, enabling users to control the output level when feeding directly into a power amplifier or preamplifier. The ability to eliminate the preamplifier in the system without any resolution loss is a major benefit to DirectStream’s outstanding musical performance. 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 100% DSD BASED D-A CONVERTER UPGRADABLE VIA SOFTWARE RELEASES VOLUME, BALANCE CONTROL BUILT IN UPSAMPLES PCM AND DSD TO 20x DSD RATE DXD SUPPORT PASSIVE TRANSFORMER COUPLED OUTPUT IMPROVES IMAGING + SOUNDSTAGE DIRECT SIGNAL PASS WITH 1x MASTER CLOCK HANDWRITTEN FILTERS, PROCESSORS, SAMPLERS IMMUNE TO OUTSIDE SOURCE JITTER PROBLEMS INCREASED DIGITAL HEADROOM NO OFF-THE-SHELF IC-DAC CHIPS USED UNCOVERS DETAILS USUALLY MASKED BY PCM PROCESSORS 7x DIGITAL INPUTS MQA + TIDAL READY WITH OPTIONAL BRIDGE II FULLY BALANCED FROM INPUT TO OUTPUT COLOR TOUCH SCREEN 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) 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 100?/200? 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 Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304Contact us with your exact shipping address for accurate shipping cost.Larger speakers and items over 150lbs are strapped to a pallet and shipped via Freight including liftgate and residential delivery.We accept Pay-Pal or credit cards by contacting our store.We offer a 4% discount with payment by Zelle or check.Defective items are exchanged within 14 days from delivery.After 14 days, the manufacturers warranty will apply. Contact us for any assistance in obtaining warranty assistance.Defective item returns must be in the manufacturers original packaging, in like-new condition, including all packaging materials, shipped as-received and fully insured.Items are guaranteed to be as described.If a refund is desired, we will refund your full purchase price minus a 20% restocking fee.The item must be as received & unopened. Buyer pays return shipping costs.If you are having a problem, Please call before making a return claim on eBay.We do not offer free auditions or trials of merchandise.Returns will only be accepted for items that are truly defective.We use methods to detect product tampering.We will seek legal action against any individual or entity attempting to defraud us.Hi-Fi Heaven1549 Sixth StGreen Bay, WI 54304
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