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  • High-voltage JFET input and MOSFET output, which results in wider soundstage and less distortions
  • Made in USA
  • Switchable gain toggle switch
  • Mjolnir can serve as a preamp for your power amps or powered monitors
  • Swap the standard 6BZ7 tubes for anything in the 6DJ8, 6922, ECC88, and 2492 families

Frequency response

20Hz-20Khz, -0.1db, 2Hz-400KHz, -3dB

Maximum Power, 32 ohms

8.0W RMS per channel

Maximum Power, 50 ohms

5.0W RMS per channel

Maximum Power, 300 ohms

850mW RMS per channel

Maximum Power, 600 ohms

425mW RMS per channel


<0.005%, 20Hz-20KHz, at 1V RMS


<0.006%, CCIF, at 1V RMS


>104db, unweighted, referenced to 1V RMS, in low gain mode


>-75dB, 20 Hz-20KHz

Output Impedance

1 ohm (high gain), 0.3 ohms (low gain)

Input Impedance

50K ohms


8 (18dB) or 1(0db), via front-panel switch


Tube voltage gain or solid-state tube voltage gain, cross-shunt push-pull Crossfet output stage, noninverting, single voltage gain stage

Power Supply

Specific Circlotron 4-secondary output stage transformer with over 65,000uF filter capacitance, plus dedicated transformer for high-voltage discrete-regulated front end stage with 200V rails and over 4,000uf of filter capacitance

Inputs One pair balanced XLR, one pair single-ended RCAs, switchable via front panel switch
Outputs One 4-pin balanced female XLR, one ¼” TRS phono, one pair 3-pin male XLR preamp, one pair single-ended RCA
Power Consumption 45W
Size 16 x 8.75 x 2.25”
Weight 13 lbs
Warranty Solid State Headphone Amplifier (60 Months)
Tubes (90 Days)
  • Schiit Audio Mjolnir 2 Headphone Amplifier
  • Power cord

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