Does the Schiit Magni Heretic drive the Audio-Technica ATH-R70x?
Computed from rated specifications · target SPL 110 dB · load 600 Ω
Verdict
AmpleThe Schiit Magni Heretic drives the Audio-Technica ATH-R70x with ample headroom (~11.3 dB headroom at 600 ohms; needs ~15.8 mW, delivers 215 mW).
Headroom
11.3 dB
11.3 dB
Required (110 dB SPL)
15.8 mW
15.8 mW
Delivered (@ 600 Ω)
215 mW
215 mW
Required voltage
2.73 Vrms
2.73 Vrms
Audio-Technica ATH-R70x
Dynamic · over-ear
| Impedance | 470.0 Ω rated |
| Sensitivity | 98.0 dB/mW rated |
| Driver | Dynamic |
| Spec basis | Rated |
Rated: Audio-Technica official spec (470 Ω, 98 dB/mW at 1 kHz). RAA has no measurement page.
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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.
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Where to buy
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Other amplifiers for the Audio-Technica ATH-R70x
| Amplifier | Headroom |
|---|---|
| Schiit Lyr 3 | Ample 14.5 dB |
| Schiit Valhalla 2 | Ample 14.5 dB |
| Topping L30 | Adequate 9.5 dB |
| Topping A90 | Adequate 9.0 dB |
| iFi Zen DAC V2 | Marginal 0.6 dB |
| Apple USB-C to 3.5mm | Insufficient -10.0 dB |
Other headphones the Schiit Magni Heretic can drive
| Headphone | Headroom |
|---|---|
| Grado SR80x | Ample 29.1 dB |
| AKG K371 | Ample 28.6 dB |
| HiFiMan Arya | Ample 18.8 dB |
| Beyerdynamic DT 770 Pro 80 | Ample 18.2 dB |
| Beyerdynamic DT 770 Pro 250 | Ample 10.6 dB |
| Beyerdynamic DT 990 Pro | Adequate 9.5 dB |