Does the Schiit Magni Heretic drive the HiFiMan Arya?

Computed from measured specifications · target SPL 110 dB · load 32 Ω

Ample

The Schiit Magni Heretic drives the HiFiMan Arya with ample headroom (~18.8 dB headroom at 32 ohms; needs ~32.0 mW, delivers 2400 mW).

Headroom
18.8 dB
Required (110 dB SPL)
32.0 mW
Delivered (@ 32 Ω)
2400 mW
Required voltage
0.95 Vrms

Power Headroom

Headroom: 18.8 dB 0 · target 18.8 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 32.0 mW required to reach 110 dB SPL. Amp delivers 2400 mW at 32 Ω (+18.8 dB above target).

HiFiMan Arya Planar · over-ear
Impedance (rated) 35 Ω
Impedance (measured) Source: reference-audio-analyzer.pro/en/r… 28.2 Ω measured
Sensitivity (rated) 90.0 dB/mW
Sensitivity (measured) 94.95 dB/mW measured
Driver Planar
Spec basis Measured
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/hifiman-arya.php) · Source ↗
Schiit Magni Heretic Desktop Ss · Single Ended
Output impedance manufacturer 0.2 Ω
Power @ 16 Ω 2800 mW
Power @ 32 Ω 2400 mW
Power @ 50 Ω 1600 mW
Power @ 300 Ω 410 mW
Power @ 600 Ω 215 mW
Power source Manufacturer
Manufacturer-rated: 2800/2400/1600/410/215 mW at 16/32/50/300/600 Ω. 16/32/300 confirmed from Schiit product page; 50/600 from original project fixture (step 1). Output impedance 0.2 Ω from Schiit spec. · Source ↗
Planar driver note

Planar-magnetic headphones can have high current demands that are not fully captured by the power headroom model. Even with adequate headroom, some solid-state amps may struggle to deliver sufficient peak current for transient dynamics. Prefer amps rated for low-impedance planars.

Where to buy

Schiit Magni Heretic on Amazon ↗ HiFiMan Arya on Amazon ↗

Disclosure: links above are Amazon affiliate links. As an Amazon Associate this site earns from qualifying purchases — at no extra cost to you. Affiliate commissions do not influence verdicts; all analysis is computed independently from the data.

AmplifierHeadroom
Schiit Lyr 3 Ample 22.7 dB
Schiit Asgard 3 Ample 20.4 dB
Topping DX3 Pro+ Ample 17.5 dB
FiiO K7 Ample 15.8 dB
Little Dot MkII Adequate 5.0 dB
Apple USB-C to 3.5mm Insufficient -0.1 dB

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HeadphoneHeadroom
Grado SR80x Ample 29.1 dB
AKG K371 Ample 28.6 dB
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Sennheiser HD 800 S Ample 17.7 dB
Beyerdynamic DT 770 Pro 250 Ample 10.6 dB
Beyerdynamic DT 990 Pro Adequate 9.5 dB

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