Gungnir offers the world’s most advanced Adapticlock™ clock regeneration system in a fully upgradable, hardware-balanced DAC with 32-bit D/A converters, advanced fully discrete analog output stage, with hardware summing for single-ended output. Like Bifrost, it also offers one of the most advanced asynchronous USB 2.0 input sections available. The USB, SPDIF BNC and RCA coax inputs, and Toslink optical input all offer 24/192 capability.

So, what’s all this about Adapticlock? Well, you probably know about jitter. And you probably know one of the best ways to kill it is with high-precision, voltage-controlled crystal oscillator (VCXO) reclocking. Now, that’s all well and good, but what happens when you have a source that won’t allow the VCXOs to lock? You know, like a satellite receiver or some computers? In other cases, you’re toast. The VCXOs unlock, and jitter flows right through the system.

In Gungnir, if the VCXOs won’t lock, it shifts the entire reclocking network to VCOs. This allows us to lock to virtually any input, and still provide a low-jitter regenerated master clock. The result is higher-quality clocks, despite the source.

End-Game Performance With Hardware Balancing 
Gungnir uses two AKM4399 32-bit D/A converters for real hardware balancing. Each phase of the output is separately generated, rather than being converted from a single DAC.

Advanced Discrete Analog Section with Hardware Summing
After the DAC, Gungnir uses fully discrete, JFET-input output stages for current gain and filtering. Following that, discrete, JFET-based summing stages convert the balanced signal to single-ended outputs, so that Gungnir can offer both balanced and single-ended output.

Fully Upgradable, Future-Proof DAC
Worried about rapidly-changing USB input technology? Concerned about future advances in D/A conversion? Gungnir’s modular design uses separate, USB Input and DAC/Analog cards. When USB technology changes, we can simply drop in a new, better USB Input Card. When meaningful upgrades to D/A converters come out, we can drop in a new DAC/Analog Card. The result? A virtually future-proof DAC that won't end up in the dumpster.

Advanced Bitperfect Clock Management
Like Bifrost, Gungnir does not use asynchronous sample rate conversion to simplify clock management. All data is passed through, bit-perfect, to the D/A converter, preserving all the original music samples--whether it's 16/44.1 or 24/192.

USB 2.0, 24/192, Async, Completely Buzzword Compliant
Gungnir’s USB input is one of the most advanced implementations available today, featuring a high-speed USB 2.0 interface (not 1.1) and asynchronous data transfer to 24/192, based on the C-Media CM6631 USB receiver. No drivers are required for Macs, and Windows drivers are downloadable for Windows 8, 7, Vista, and XP.

Don't Need USB? Cool.
Order Gungnir without the USB 2.0 Input Card and save some money! Add it in for $150 if you need it later.

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5-Year Warranty
Gungnir is covered by a limited warranty that covers parts and labor for five years. That’s 5 years. Yes. FIVE. Compare that to the competition. Please note this doesn't mean free upgrades for five years!

15-Day Satisfaction Guarantee
Don’t like your Gungnir? No problem. Call us for an RA and send it back for a full refund, minus 5% transaction fee, within 15 days of receiving your DAC. When was the last time you spent a couple of weeks in an audio store? With your own equipment? Thought so.


Inputs: Coaxial RCA SPDIF, BNC SPDIF, Optical SPDIF, USB (optional)
Input Capability: up to 24/192 for all inputs
Input Receiver, SPDIF: Crystal Semiconductor CS8416
Input Receiver, USB: C-Media CM6631

D/A Conversion IC: AKM4399 x 2
Analog Stages: All fully discrete, JFET-input topology, DC coupled, summed for single-ended output

Output: One pair XLR balanced and two pairs RCA single-ended
Output Impedance: 75 ohms

Frequency Response, Analog Stage: 20Hz-20Khz, +-0.1dB, 1Hz-100KHz, -1dB
Maximum Output: 4.0V RMS (balanced), 2.0V RMS (single-ended)

THD: Less than 0.003%, 20Hz-20KHz, at full output
IMD: <0.006%, CCIR
SNR: > 110dB, referenced to 2V RMS

Power supply: two transformers (one digital, one analog) with 8 stages of regulation, including separate supplies for critical digital and analog sections.

Upgradability: Separate, modular USB Input Card and DAC/Analog Cards are snap-in replaceable.

Power Consumption: 20W
Size: 16 x 8.75” x 2.25”
Weight: 11 lbs

*All measurements made on a Stanford Research SR1+ Audio Analyzer