Does the Topping DX3 Pro+ drive the Audeze LCD-2 Classic?

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

Verdict

Ample

The Topping DX3 Pro+ drives the Audeze LCD-2 Classic with ample headroom (~23.6 dB headroom at 32 ohms; needs ~7.9 mW, delivers 1800 mW).

Headroom
23.6 dB
Required (110 dB SPL)
7.9 mW
Delivered (@ 32 Ω)
1800 mW
Required voltage
0.75 Vrms

Power Headroom

Headroom: 23.6 dB 0 · target 23.6 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 7.9 mW required to reach 110 dB SPL. Amp delivers 1800 mW at 32 Ω (+23.6 dB above target).

Audeze LCD-2 Classic Planar · over-ear
Impedance 70.0 Ω rated
Sensitivity 101.0 dB/mW rated
Driver Planar
Spec basis Rated
Rated: Audeze official spec (70 Ω, 101 dB/mW). RAA has only the original LCD-2 (different variant) and LCD-2 Classic Closed Back — neither matches the open-back Classic. Rated-only. · Source ↗
Topping DX3 Pro+ Dac Amp · Single Ended
Output impedance manufacturer 0.1 Ω
Power @ 32 Ω 1800 mW
Power @ 300 Ω 250 mW
Power @ 600 Ω 125 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.
Topping DX3 Pro+ SE headphone output: 1800 mW @ 32 Ω, 250 mW @ 300 Ω (from Topping official spec). Output impedance <0.1 Ω. 600 Ω derived from 300 Ω. · 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

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Schiit Magni Heretic Ample 23.0 dB
FiiO K7 Ample 21.9 dB
Little Dot MkII Ample 11.0 dB
Apple USB-C to 3.5mm Adequate 5.9 dB
HeadphoneHeadroom
Koss Porta Pro Ample 28.2 dB
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Sennheiser HD 660S Ample 17.4 dB
AKG K702 Ample 16.9 dB
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Beyerdynamic DT 990 Pro Adequate 7.3 dB