MJOLNIR
BALANCED CROSSFETTM HEADPHONE AMPLIFIER
ZERO FEEDBACK | SINGLE VOLTAGE GAIN STAGE
$749.00




Mjolnir is the only dedicated headphone amp using an Circlotron-style topology with high-voltage JFET inputs and MOSFET outputs. Unlike other balanced headphone amps, Mjolnir is not simply two of the same amps in a box, with one run inverted. It’s a unique, inherently balanced stage that delivers both low complexity and very high performance.

“So what the heck does that mean in English?” You ask. Here it is: 8 times the output power, 8X lower distortion, and less noise than Asgard. Mjolnir is a super-powerful amp, but it’s also quiet enough to be used with the most sensitive headphones. And, since it’s all solid-state, it’s set-and forget. No tubes to replace. No tube rolling.

So, what’s the catch? Only this: Mjolnir is ONLY a balanced amp. There are no single-ended outputs. Welcome to the wonders of cross-shunt push-pull topologies.

No-Excuses, End-Game Balanced Amp
You won’t find any balanced-to-single-ended conversion or vice-versa in Mjolnir. It’s balanced in and balanced out, with a 4-gang RK27 Alps volume pot--providing end-game performance for a mid-level price.

High Power for Any Headphones
High-gain amps can be noisy. This doesn’t matter for low-efficiency orthodynamics, but if you have, say, Denons, it may not be ideal. Mjolnir delivers both 8W RMS per channel, and exceptionally low noise.

Unique, Simple Crossfet™ topology
Mjolnir is the only dedicated headphone amp using a Circlotron-style, or cross-shunt push-pull topology. This Crossfet™ topology allows us to use only N-channel MOSFETs, for better matching and lower distortion. It also significantly simplifies the output stage.

Fully Discrete, DC-In and DC-Out Design
Mjolnir uses high-voltage JFETs running on 90V rails to achieve low distortion with only a single voltage gain stage and no feedback. It’s also DC-coupled at both input and output, with a precision DC servo and relay protection for all outputs.

5-Year Warranty
Mjolnir 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.

15-Day Satisfaction Guarantee

Don’t like Mjolnir? 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 amp.When was the last time you spent a couple of weeks in an audio store? With your own equipment? Thought so.

More info? Mjolnir FAQ-->

Specifications

Headphone Impedance: 8-600 ohms

Gain: 8 (18db)

Frequency Response: 2Hz-400KHz, -3dB

Maximum Output: 45V P-P typ. Into 32 ohms, or 8W RMS into 32 ohms, 5W RMS into 50 ohms
THD: Less than 0.008%, 20Hz-20KHz, at 1V

Output impedance: less than 1.5 ohms
Topology: Fully discrete FET, cross-shunt push-pull Crossfet output stage, zero feedback, noninverting, single voltage gain stage

Inputs: one pair balanced XLR, one pair single-ended RCAs, choose one
Outputs: one 4-pin balanced female XLR, one pair dual 3-pin female XLR, and one pair male XLR preamp outs
Power Consumption: 45W

Size: 16 x 8.75 x 2.25”

Weight: 12 lbs