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Schiit Yggdrasil  (Analogue 2 Version)

Schiit Yggdrasil is the world's only upgradable closed form balanced multi bit DAC

With Unison USB Dac

Schiit Yggdrasil just forget everything you know about DACs. Schiit Yggdrasil is the world's only closed-form multibit DAC, delivering 21 bits of resolution with no guessing anywhere in the digital or analog path. We've thrown out delta-sigma D/As and traditional digital filters to preserve the original samples all the way through from input to output. Let's take a closer look:

Closed-Form Digital Filter Preserves Original Samples

Most DACs simply use the stock digital filters embedded in their D/A converters. But even the most sophisticated ones, using their own digital filter algorithms, don't have what Yggdrasil has a digital filter with a true closed-form solution. 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 and it is only available on Schiit Yggdrasil.

21 Bits, No Guessing: Mission-Critical D/A Technology

When doctors are trying to diagnose whether you have gas or cancer from MRI results, or when the military is trying to ensure a missile hits an ammo dump and not a nunnery next door, they don't use 24 bit or 32 bit delta-sigma D/A converters. Instead, they rely on precision, multibit ladder DACs, like the Analog Devices AD5791. This allows them the bit-perfect precision they need for critical applications, rather than the guesswork of a delta-sigma. We chose this same critical technology for Yggdrasil. Following these unique D/A converters are sophisticated discrete JFET buffers and summers.

Adapticlock and Unison USB : Advanced Input Optimisation

Yggdrasil now includes Unison USB, Schiit's own USB input based on a general-purpose PIC32 microprocessor, using precision local clocks and complete electromagnetic and electrostatic isolation. No more off-the-shelf USB for Schiit—this unique, UAC2-compliant input provides the highest performance and lowest power draw of any USB input they have offered to date. Yggdrasil accepts up to 5 digital inputs and carefully manages them with our Adapticlock™ clock regeneration system. Adapticlock is one of the most sophisticated clock management system in the world. It assesses the quality of all inputs, measures their incoming center frequency and jitter, and automatically routes the input to the best clock regeneration system.

Made in USA

By made in USA, we mean made in USA.The vast majority of the total production cost of Schiit Yggdraril chassis, boards, transformers, assembly, etc goes to US companies manufacturing in the US. 

5-Year Warranty

Yggdrasil is covered by a limited warranty that covers parts and labour for Five years. That's 5 years. Yes. Five. Which is up to 5X that of the competition, if you weren't so hot at math. 

Windows Drivers and Setup


Input Capability: Up to 24 / 192 for all inputs

Input Receiver, SPDIF: AKM AK4313

Input Receiver, USB: Unison USB™,  based on Microchip PIC32 microprocessor

Clock Management: Bitperfect clock management at all native sample rates via Adapticlock analysis and VCXO/VCO regeneration

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 Stages: Fully discrete JFET buffers for balanced output and discrete JFET summing stages for single-ended output, direct coupled throughout

Output: One pair XLR balanced and Dual RCA single-ended

Output Impedance: 75 ohms

Frequency Response, Analog Stage: 20 hz - 20 Khz, +/-0.1dB, 0.5 hz - 200 KHz, -1dB

Maximum Output: 4.0V RMS (balanced), 2.0V RMS (single-ended)

THD: Less than 0.006%, 20Hz-20KHz, at full output

IMD: <0.007%, CCIF, at full output

SNR: >117dB, referenced to 2V RMS

Power Supply: Two transformers (one for digital supplies, one for analog supplies) plus one input choke for discrete, dual mono, shunt-regulated analog +/-24V supply, plus 12 separate local regulated supplies for DACs and digital sections, including high-precision, low-noise LM723 regulation in critical areas.

Upgradability: Fully modular architecture. Separate digital input board, USB input board, DSP engine board, and DAC/analog output boards.

Power Consumption: 35W

Size: 40.6 x 30.5 x 9.85 cm

Weight: 11.35 Kg

*All measurements made on a Stanford Research SR1 or SR1+ Audio Analyser

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