Does the Schiit Lyr 3 drive the Audio-Technica ATH-R70x?

Computed from rated specifications · target SPL 110 dB · load 600 Ω

Ample

The Schiit Lyr 3 drives the Audio-Technica ATH-R70x with ample headroom (~14.5 dB headroom at 600 ohms; needs ~15.8 mW, delivers 450 mW). (Amp power at 600 ohms is estimated from its published figure at a nearby load.)

Headroom
14.5 dB
Required (110 dB SPL)
15.8 mW
Delivered (@ 600 Ω)
450 mW *est.
Required voltage
2.73 Vrms

Power Headroom

Headroom: 14.5 dB 0 · target 14.5 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 15.8 mW required to reach 110 dB SPL. Amp delivers 450 mW at 600 Ω (+14.5 dB above target). Power figure estimated from an adjacent published load.

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. · Source ↗
Schiit Lyr 3 Desktop Tube · Single Ended
Output impedance manufacturer 0.3 Ω
Power @ 32 Ω 6000 mW
Power @ 300 Ω 900 mW
Power @ 600 Ω 450 mW *est.
Power source Manufacturer
* Loads marked "est." are derived from the published voltage ceiling at a lower-impedance load (V = √(P·R) → P_higher = V²/R_higher). All derivations are upward only.
Schiit Lyr 3 manufacturer spec: 6000 mW @ 32 Ω, 900 mW @ 300 Ω per channel. Output impedance 0.3 Ω from Schiit spec. Hybrid tube topology (tube input stage, solid-state output). 600 Ω derived from 300 Ω. · Source ↗
Power figure note

The amp's power at 600 Ω was not published directly — it was derived from the voltage ceiling at a published lower-impedance load. The actual delivered power may differ modestly.

Where to buy

Schiit Lyr 3 on Amazon ↗ Audio-Technica ATH-R70x 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.

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