Does the Schiit Magni Heretic drive the Audeze LCD-X?

Computed from measured specifications · target SPL 110 dB · load 16 Ω

Verdict

Ample

The Schiit Magni Heretic drives the Audeze LCD-X with ample headroom (~24.1 dB headroom at 16 ohms; needs ~11.0 mW, delivers 2800 mW).

Headroom
24.1 dB
Required (110 dB SPL)
11.0 mW
Delivered (@ 16 Ω)
2800 mW
Required voltage
0.46 Vrms

Power Headroom

Headroom: 24.1 dB 0 · target 24.1 dB below target marginal adequate ample -14 dB +10 +20 +36 dB

Scale shows dB headroom above the 11.0 mW required to reach 110 dB SPL. Amp delivers 2800 mW at 16 Ω (+24.1 dB above target).

Audeze LCD-X Planar · over-ear
Impedance (rated) 20 Ω
Impedance (measured) Source: reference-audio-analyzer.pro/en/r… 19.45 Ω measured
Sensitivity (rated) 96.0 dB/mW
Sensitivity (measured) 99.6 dB/mW measured
Driver Planar
Spec basis Measured
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/audeze-lcd-x.php) · Source ↗
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. · 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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