105 AER vs Liric: which needs more amplifier?

The Meze 105 AER is 42Ω at 112.0 dB/mW; the Meze Liric is 61Ω at 100.0 dB/mW. This page covers what they ask of an amplifier, not how they sound.

The Liric needs 12.0 dB more than the 105 AER to reach the same loudness — 1.0 mW against 0.06 mW.

The numbers that decide it

Specification105 AERLiric
Impedance42 Ω61 Ω
Sensitivity112.0 dB/mW100.0 dB/mW
Sensitivity (voltage)125.8 dB/V112.1 dB/V
Power for 100 dB0.06 mW1.0 mW
Voltage for 100 dB51 mV0.25 V
Current for 100 dB1.2 mA4.0 mA
Highest source impedance
that leaves them alone (one-eighth rule)
5.25 Ω7.62 Ω
Sources that reach 100 dB
out of 280
280280

Where the two part company

Every source in the database that drives one of them drives the other. On power, the choice between these two changes nothing about what amplifier you need.

14 sources stay below the audible-hiss threshold with the Liric but cross it with the 105 AER (FiiO BTR11, FiiO K11 R2R, Lake People G103-S Mk II, 11 more).

280 of the 280 sources here reach 100 dB on both.

What each one needs from 80 to 105 dB

The Liric is more demanding than 67% of the 567 non-electrostatic models in this database; the 105 AER than 12%.

dB SPL105 AER power105 AER voltageLiric powerLiric voltage
800.6 µW5 mV0.01 mW25 mV
852.0 µW9 mV0.03 mW44 mV
906.3 µW16 mV0.10 mW78 mV
950.02 mW29 mV0.32 mW0.14 V
1000.06 mW51 mV1.0 mW0.25 V
1050.20 mW92 mV3.2 mW0.44 V

The cheapest source that satisfies both

SourcePriceHeadroom, 105 AERHeadroom, LiricOutput impedanceNoise
JadeAudio JA11$2025.6 dB12.0 dB0.5 Ω1.7 µV
FiiO KA11$2933.8 dB20.2 dB0.7 Ω1.7 µV
FiiO BTR13$5930.8 dB17.2 dB0.6 Ω1.0 µV

Of the 280 sources here, 280 reach 100 dB on both. 57 of them also publish an output impedance low enough for both under the one-eighth rule and a noise figure that stays below the audible-hiss threshold with both.

The cheapest of the 57 is the JadeAudio JA11, at $20. It leaves 25.6 dB of headroom on the 105 AER and 12.0 dB on the Liric, its output impedance is 0.5 Ω against a one-eighth limit of 5.25 Ω and 7.62 Ω, and its noise figure puts the hiss floor 10 dB and 23 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.

Try any other source.

What each sheet prints, and what it is worth

ModelAs printedToleranceStandard
105 AER5 Hz - 30 kHznot printednot printed
Liric4 Hz - 92 kHznot printednot printed

Meze prints 5 Hz - 30 kHz for the 105 AER and 4 Hz - 92 kHz for the Liric.

Neither range has a tolerance printed beside it, so a wider range on one sheet is not deeper bass or more treble.

Not a measurement; maker by maker.

Both pages in full

Both have a page of their own. In full: Meze 105 AER and Meze Liric. Every figure on this page comes from what Meze published, or is derived from it — what that maker publishes, counted.

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