Does the Schiit Lyr 3 drive the Drop + Sennheiser HD 6XX?

Computed from rated specifications · target SPL 110 dB · load 300 Ω

Ample

The Schiit Lyr 3 drives the Drop + Sennheiser HD 6XX with ample headroom (~17.3 dB headroom at 300 ohms; needs ~16.7 mW, delivers 900 mW).

Headroom
17.3 dB
Required (110 dB SPL)
16.7 mW
Delivered (@ 300 Ω)
900 mW
Required voltage
2.24 Vrms

Power Headroom

Headroom: 17.3 dB 0 · target 17.3 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 16.7 mW required to reach 110 dB SPL. Amp delivers 900 mW at 300 Ω (+17.3 dB above target).

Drop + Sennheiser HD 6XX Dynamic · over-ear
Impedance 300.0 Ω rated
Sensitivity 97.77 dB/mW rated
Driver Dynamic
Spec basis Rated low confidence
Electrically equivalent to Sennheiser HD 650 (same driver assembly). Rated specs derived from HD 650 manufacturer documentation. No RAA measurement page for this Drop collab. · 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 ↗
Headphone specification confidence: low

The headphone's rated specifications are from estimated or secondary sources. Measured figures (where present) are more reliable.

Where to buy

Schiit Lyr 3 on Amazon ↗ Drop + Sennheiser HD 6XX 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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Topping L30 Ample 12.2 dB
Topping A90 Ample 11.7 dB
iFi Zen DAC V2 Adequate 3.3 dB
Apple USB-C to 3.5mm Insufficient -7.0 dB

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