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MAGNI 3 Heresy

MAGNI 3 Heresy

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Schiit Magni 3 Heresy

This is no “starter amp.” Schiit Magni 3 Heresy has the power, performance, resolution, and Measurements to meet all your needs—no matter the headphone.

Magni 3 Heresy raise the bar even higher for affordable headphone amps, with by far the highest output power in their price class and at least 200% higher than any competitor. At the same time, they provide the cleanest measured performance of any Magni, ever. Go ahead. Compare these new Magnis to anything out there at the price, and we think you’ll agree: there’s really no competition.

Your Choice: High Performance…or Even Higher

For Magni 3+, we pulled out all the stops in designing the highest performing discrete Magni ever, by any metric—power, distortion, or noise floor. But it’s easy to get even higher measured performance from integrated (op amp) designs, so we decided to give you a choice, with Magni Heresy. 

Choose Magni 3+ for the ultimate expression of an affordable all-discrete current-feedback headphone amp. It’s now seriously like a mini speaker amp, right down to the driver stage and Vbe multiplier. Magni 3+ is in our traditional silver and gray chassis.

Choose Magni 3 Heresy for insanely great measurements from an all-op-amp based headphone amp that uses super high quality parts, including a multiple paralleled output stage with feedforward. Magni Heresy is in a black and red chassis.

Both amps sound fantastic. You really can’t make a wrong choice. 

Versatility Comes Standard

Magni 3 Heresy include preamp outputs. This means you can connect to your desktop powered monitors for a complete system—or even connect it to a speaker power amp and use it as a preamp. With its built-in time-delayed start-up and instant shut-down, there’ll be no glitches or pops through either headphones or speakers, either.

By “designed and built in California" this is what Schiit mean: the vast majority of the total production of the Magni—chassis, boards, transformers, assembly, etc—stays local. The chassis are made minutes from their facility. The PCBs are done in Nevada. Yes, the wall-warts are made in China, but there's some give and take at this price point. 

2-Year Warranty 

Magni3 Heresy is covered by a limited warranty that covers parts and labour for two years. 


Frequency Response: 20Hz-20Khz, +/-0.04dB


Maximum Power, 16 ohms: 2.8W RMS per channel

Maximum Power, 32 ohms: 2.4W RMS per channel

Maximum Power, 50 ohms: 1.6W RMS per channel

Maximum Power, 300 ohms: 410mW RMS per channel

Maximum Power, 600 ohms: 215mW RMS per channel



High Gain: Less than 0.0014% (-97dB) at 1V RMS into 32 ohms

Low Gain: Less than 0.0002% (-113dB) at 1V RMS into 32 ohms



High Gain: Less than 0.002% (-95dB) at 1V RMS into 32 ohms, CCIF

Low Gain: Less than 0.0006% (-105dB) at 1V RMS into 32 ohms, CCIF



High Gain: Greater than 104dB, A weighted, referenced to 1V RMS

Low Gain: Greater than 115dB, A weighted, referenced to 1V RMS

 Crosstalk: Less than -70dB, 20 Hz-20 kHz in either gain

 Output Impedance: Less than 0.25 ohms at either gain

Input Impedance: 25k ohms


Gain: 1 (3db) or 6 (18db), selectable via rear switch

Topology: OPA1662 op-amp for voltage gain with local feedback, OPA1688 (8 stages) as output buffers with local loops, no overall loop feedback.

Protection: Standard failsafe DC power input and muting relay

 Power Supply: “Wall wart” style 24VA 15VAC transformer, regulated +/- 16V rails with over 6,000uF filter capacitance

Power Consumption: 6W

Size: 12.7 x 8.9 x 3.18 cm

Weight: 0.45 kgs

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