Does the Schiit Lyr 3 drive the AKG K240 Studio?
Computed from rated specifications · target SPL 110 dB · load 32 Ω
Verdict
AmpleThe Schiit Lyr 3 drives the AKG K240 Studio with ample headroom (~18.8 dB headroom at 32 ohms; needs ~79.4 mW, delivers 6000 mW).
Headroom
18.8 dB
18.8 dB
Required (110 dB SPL)
79.4 mW
79.4 mW
Delivered (@ 32 Ω)
6000 mW
6000 mW
Required voltage
2.09 Vrms
2.09 Vrms
AKG K240 Studio
Dynamic · over-ear
| Impedance | 55.0 Ω rated |
| Sensitivity | 91.0 dB/mW rated |
| Driver | Dynamic |
| Spec basis | Rated |
Rated: AKG official spec (55 Ω, 91 dB/mW at 1 mW). Note: AKG uses dB/V for most models but explicitly states 1 mW here. RAA has no 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 ↗
Where to buy
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Other amplifiers for the AKG K240 Studio
| Amplifier | Headroom |
|---|---|
| JDS Labs Atom Amp 2 | Ample 15.2 dB |
| Schiit Asgard 3 | Ample 15.0 dB |
| Schiit Magni Heretic | Ample 13.0 dB |
| FiiO K7 | Ample 11.9 dB |
| Little Dot MkII | Marginal 1.0 dB |
| Apple USB-C to 3.5mm | Insufficient -4.1 dB |
Other headphones the Schiit Lyr 3 can drive
| Headphone | Headroom |
|---|---|
| Koss Porta Pro | Ample 33.4 dB |
| Grado SR80x | Ample 33.1 dB |
| Sennheiser HD 660S | Ample 23.0 dB |
| HiFiMan Arya | Ample 22.7 dB |
| Beyerdynamic DT 770 Pro 250 | Ample 14.0 dB |
| Beyerdynamic DT 990 Pro | Ample 12.9 dB |