Loki Divine Mark vs Nott Phantom: which needs more amplifier?

The Kinera Loki Divine Mark is 14Ω at 105.0 dB (no reference unit printed); the Kinera Nott Phantom is 54Ω at 105.0 dB (no reference unit printed). This page is only about what they ask of an amplifier — not how they sound, which no specification on either sheet can tell you.

In amplifier terms these two are the same headphone. The gap between what they need for 100 dB is under half a decibel, which is smaller than the step between two clicks of most volume controls.

The numbers that decide it

SpecificationLoki Divine MarkNott Phantom
Impedance14 Ω54 Ω
Sensitivity105.0 dB105.0 dB
Sensitivity (voltage)123.5 dB/V117.7 dB/V
Power for 100 dB0.32 mW0.32 mW
Voltage for 100 dB67 mV0.13 V
Current for 100 dB4.8 mA2.4 mA
Highest source impedance
that leaves them alone (one-eighth rule)
1.75 Ω6.75 Ω
Sources that reach 100 dB
out of 280
280280

One caution before reading the rows. Kinera Loki Divine Mark and Kinera Nott Phantom printed a decibel figure with no reference unit, so this page reads it as per milliwatt. If it is really per volt, each of them needs far more than the table says. Why the two readings differ by so much.

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.

5 sources are low enough in output impedance for the Nott Phantom under the one-eighth rule but not for the Loki Divine Mark (Schiit Vali 2+, Astell&Kern HC3, Shanling H5, 2 more).

4 sources stay below the audible-hiss threshold with the Nott Phantom but cross it with the Loki Divine Mark (FiiO BTR11, FiiO K11 R2R, Lake People G111 Mk II, 1 more).

280 of the 280 sources here reach 100 dB on both. That count is about power only — the output-impedance and hiss lines above are separate questions, and a source can pass this one and fail those.

Both pages in full

Each model has a page of its own with the full source list, the hiss estimate and the provenance of every figure above: Kinera Loki Divine Mark and Kinera Nott Phantom. Each figure on this page is labelled on those pages with where it came from, including the ones Kinera never published — what that maker publishes, counted.