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PAIRS WELL WITH THESE ACCESSORIES
Designed & Made
in the USA
5 Years of
Warranty
Ideal for
Indoor Use
AD5791BRUZ x 4
DAC Chip
Connect With AES/EBU XLR
RCA, BNC, Optical & USB
BETTER THAN MOST SOPHISTICATED DACS
Unlike most DACs (including sophisticated ones), the Schiit Yggdrasil has a time-and frequency-domain optimized digital filter with a true closed-form solution, precise bit-perfect multibit ladder DACs, like the Analog Devices AD5791 and sophisticated discrete JFET buffers & summers. This means it retains all the original samples, performing a true interpolation. This digital filter gives you the best of both NOS (all original samples retained) and upsampling (easier filtering of out-of-band noise) designs.
HIGH-QUALITY INPUT SYSTEM
The Yggdrasil features Schiit's all-new USB Gen 3 input module for exceptional USB input performance. It accepts up to 5 digital inputs and carefully manages them with the Adapticlock™ regeneration system. This is the most sophisticated clock management system in the world which assesses the quality of all inputs, measures their incoming centre frequency and jitter, while automatically routing the input to the best clock regeneration system.
| INPUTS | AES/EBU XLR, RCA SPDIF, BNC SPDIF, Optical SPDIF, USB |
| INPUT COMPATIBILITY | up to 24/192 for all inputs |
| INPUT RECEIVER, SPDIF | AKM AK4113 |
| INPUT RECEIVER, USB | C-Media CM6631A |
| OUTPUT | One pair XLR balanced and two pairs RCA single-ended |
| OUTPUT IMPEDANCE | 75 ohms |
| FREQUENCY RESPONSE, ANALOG STAGE | 20 Hz-20 kHz, +/-0.1dB, 0.5 Hz-200KHz, -1dB |
| MAXIMUM OUTPUT | 4.0V RMS (balanced), 2.0V RMS (single-ended) |
| THD | Less than 0.005%, 20 Hz-20 kHz, at full output |
| IMD | < 0.005%, CCIF, at full output |
| SNR | > 119 dB, referenced to 2V RMS |
| UPGRADABILITY | Fully modular architecture. Separate digital input board, USB input board, DSP engine board, and DAC/analog output boards. |
| CLOCK MANAGEMENT | Bitperfect clock management at all native sample rates via Adapticlock analysis and VCXO/VCO regeneration, plus asynchronous USB Gen 5 module |
| DIGITAL FILTER | proprietary Schiit bitperfect closed-form digital filter implemented on Analog Devices SHARC DSP processor |
| D/A CONVERSION IC | Analog Devices AD5791BRUZ x 4 (2 per channel, hardware balanced configuration) |
| ANALOG STAGE | Fully discrete, DC coupled Class A FET buffers optimized for high current output and fully discrete, Class A FET summing stages for single-ended output |
| POWER CONSUMPTION | 35W |
| WEIGHT | 11.3kg (25 lbs) |
| BOX CONTENTS | 1. Schiit Yggdrasil |
| 2. Power cord |
| GENERIC NAME | Digital Audio Converter |
| COUNTRY OF ORIGIN | USA |
| IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
| NET QUANTITY | 1 |
The Schiit Story
The story of Schiit Audio begins with two veteran audiophiles Jason Stoddard, formerly of Sumo, and Mike Moffat, formerly of Theta coming together to shake things up a bit. Both of them have extensive experience in developing lots of audio and A/V products including the Andromeda III, Cobalt 307, DS Pre and Angstrom 200. From power amplifiers, I/V conversion stages, D/A converters, relay-switched stepped attenuator volume controls in preamps to developing the first DTS home theatre surround processor on the market, Schiit Audio has developed a lot of audio products over the years.
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Getting into Designing Headphones
Headphones are the need of the hour everyone who likes music uses a headphone. Therefore Schiit Audio moved to develop personal audio equipment while continuing to design a speaker-based system which includes the industry-leading preamps, amps and DACs. So right now Schiit Audio has a plethora of audio products ranging from personal audio to speaker-based systems. Schiit designs affordable audio products that bring happiness in your lives.
True Multibit DACs and Unique Digital Filter
Unlike ordinary DACs that use delta-sigma, NOS (new old stock) D/A chips, multibit chips, high-cost R2R ladders, Schiit uses unique DSP-based closed-form digital filter which improves the sonic performance of the multibit DAC. Therefore the Schiit's multibit technology brings all of it together using the current-production, medical/military grade D/A converters.
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Innovation in Analog
Schiit has opted for an innovative approach for the analog side as well. Even the most affordable Schiit headphone amplifier is a miniature, fully discrete, DC coupled, current-feedback power amplifier. Schiit is credited for introducing Continuity output stage to solve the issue of transconductance droop which was common in Class AB amplifier design. Schiit has also developed balanced topologies like Nexus in Ragnarok 2 and a perfect combination of tube and solid-state with Coherence in Lyr 3.
Designed with High-End Materials for Durability
All the Schiit products are designed for solidity and durability. Even the smallest of the products are made of aluminium and steel while the larger products are made of high-end C core transformers, power supply filtering and low-noise control. All the products have to go through severe testing procedures including the latest APx555 audio analyzer and Avermetrics analyzers. Every product from Asgard and up goes through burn-in to address the issues faced during the initial period of usage. Schiit takes care of all the service and support requirements so that you can concentrate on great sound.
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Handcrafted in the USA
Schiit believes that local control of all the aspects of production improves the delivering of the product. Therefore all the Schiit products are designed and made in the USA and most of the cost of the components are going to the US-based companies. Assembled in the USA means that Schiit's chassis guys are from San Fernando Valley, Schiit transformers are made in California, Schiit boards come from the east coast of the USA and all the designing, assembling and testing of Schiit products happen in Valencia, California.
"The below are the claims of the digital filter/interpolator/sample rate converter in Yggy:
1. The filter is absolutely proprietary.
2. The development tools and coefficient calculator to derive the above filters are also proprietary.
3. The math involved in developing the filter and calculating has a closed form solution. It is not an approximation, as all other filters I have studied (most, if not all of them). Therefore, all of the original samples are output. This could be referred to fairly as bit perfect; what comes in goes out.
4. Oversimplified, however essentially correct: The filter is also time domain optimized which means the phase info in the original samples are averaged in the time domain with the filter generated interpolated samples to for corrected minimum phase shift as a function of frequency from DC to the percentage of nyquist - in our case .968. Time domain is well defined at DC - the playback device behaves as a window fan at DC - it either blows (in phase) or sucks (out). It is our time domain optimization that gives the uncanny sonic hologram. (It also allows the filter to disappear. Has to be heard to understand.) Since lower frequency wavelengths are measured in tens of feet, placement in image gets increasingly wrong as a function of decreasing frequency in non time domain optimized recordings - these keep the listener's ability to hear the venue - not to mention the sum of all of the phase errors in the microphones, mixing boards, eq, etc on the record side. An absolute phase switch is of little to no value in a non time domain optimized, stochastic time domain replay system. It makes a huge difference with an Yggy.
5. This is combined with a frequency domain optimization which does not otherwise affect the phase optimization. The 0.968 of Nyquist also gives us a small advantage that none of the off-the shelf FIR filters (0.907) provide: frequency response out to 21.344KHz, 42.688KHz, 85.3776KHz, and 170.5772KHz bandwidth for native 1,2,4, and 8x 44.1KHz SR multiple recordings - the 48KHz table is 23.232, 46.464, 92.868, and 185.856KHz respectively for 1,2,4, and 8x. This was the portion of the filter that had the divide by zero problem which John Lediaev worked out, to combine with #4 above AND retain the original samples.
This is what other DACs typically offer: frequency domain optimization FIR filters with Parks-McClellan optimization. Any avoidance of the Parks-McClellan pablum requires a lot of original DSP work. Am I a prophet who received the tablets from God or some other high-end audio drivel. Hell, no. I was the producer and director of this project and worked with Dave Kerstetter (hardware-software), John Lediaev (Math), Tom Lippiat (DSP Code), Warren Goldman (Coefficient Generator and development tools) for a total of 15 or so man years. These folks either taught math at The University of Iowa, Computer Science at Carnegie-Mellon University, worked at think tanks like the Rand Corporation óń you get the idea. We did this for no money - What we all had in common was that we loved audio. All other audio pros were interested in Parks-McClellan and pointed and laughed at us. That's the way it happened. It was worth it, every hour, day, and year."
5 Year Warranty
Don't sweat it, this Schiit - Yggdrasil comes with a warranty
from Schiit that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about Schiit's warranty in India.
"In the end the Yggdrasil's sound pulled me in more. It wins by doing less, it is a slightly softer sound, but one that keeps me coming back."
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"It’s built amazingly well, there’s inputs and outputs for whatever you’d likely need, it sexy to look at, and my goodness does it make your audio sound true to real life."
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