Delci vs Klanar: which needs more amplifier?

The Kefine Delci is 28Ω at 108.0 dB (no reference unit printed); the Kefine Klanar is 16Ω 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.

The Klanar needs 3.0 dB more than the Delci to reach the same loudness — 0.32 mW against 0.16 mW.

The numbers that decide it

SpecificationDelciKlanar
Impedance28 Ω16 Ω
Sensitivity108.0 dB105.0 dB
Sensitivity (voltage)123.5 dB/V123.0 dB/V
Power for 100 dB0.16 mW0.32 mW
Voltage for 100 dB67 mV71 mV
Current for 100 dB2.4 mA4.4 mA
Highest source impedance
that leaves them alone (one-eighth rule)
3.50 Ω2.00 Ω
Sources that reach 100 dB
out of 280
280280

One caution before reading the rows. Kefine Delci and Kefine Klanar 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.

1 source stays below the audible-hiss threshold with the Klanar but crosses it with the Delci (Lake People G111 Mk II).

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: Kefine Delci and Kefine Klanar. Each figure on this page is labelled on those pages with where it came from, including the ones Kefine never published — what that maker publishes, counted.