The Kinera Freya Vanir is 16Ω at 88.0 dB/mW; the Kinera Sylvie is 16Ω at 107.0 dB (no reference unit printed). This page covers what they ask of an amplifier, not how they sound.
The Freya Vanir needs 19.0 dB more than the Sylvie to reach the same loudness — 16 mW against 0.20 mW.
| Specification | Freya Vanir | Sylvie |
|---|---|---|
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 88.0 dB/mW | 107.0 dB |
| Sensitivity (voltage) | 106.0 dB/V | 125.0 dB/V |
| Power for 100 dB | 16 mW | 0.20 mW |
| Voltage for 100 dB | 0.50 V | 57 mV |
| Current for 100 dB | 31.5 mA | 3.5 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 2.00 Ω | 2.00 Ω |
| Sources that reach 100 dB out of 280 | 262 | 280 |
One caution before reading the rows. Kinera Sylvie printed a decibel figure with no reference unit, so this page reads it as per milliwatt. If it is really per volt, that model needs far more than the table says. Why the two readings differ by so much.
18 of the 280 sources have the power for the Sylvie but not for the Freya Vanir — Apple USB-C dongle (US), Apple USB-C dongle (EU), JadeAudio JA11, 15 more.
10 sources stay below the audible-hiss threshold with the Freya Vanir but cross it with the Sylvie (FiiO BTR11, FiiO K11 R2R, Lake People G103-S Mk II, 7 more).
262 of the 280 sources here reach 100 dB on both.
The Freya Vanir is more demanding than 87% of the 567 non-electrostatic models in this database; the Sylvie than 14%.
| dB SPL | Freya Vanir power | Freya Vanir voltage | Sylvie power | Sylvie voltage |
|---|---|---|---|---|
| 80 | 0.16 mW | 50 mV | 2.0 µW | 6 mV |
| 85 | 0.50 mW | 90 mV | 6.3 µW | 10 mV |
| 90 | 1.6 mW | 0.16 V | 0.02 mW | 18 mV |
| 95 | 5.0 mW | 0.28 V | 0.06 mW | 32 mV |
| 100 | 16 mW | 0.50 V | 0.20 mW | 57 mV |
| 105 | 50 mW | 0.90 V | 0.63 mW | 0.10 V |
| Source | Price | Headroom, Freya Vanir | Headroom, Sylvie | Output impedance | Noise |
|---|---|---|---|---|---|
| FiiO KA11 | $29 | 11.9 dB | 30.9 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 8.8 dB | 27.8 dB | 0.6 Ω | 1.0 µV |
| iBasso DC03 Pro | $69 | 4.9 dB | 23.9 dB | 0.12 Ω | 0.9 µV |
Of the 280 sources here, 262 reach 100 dB on both. 61 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 61 is the FiiO KA11, at $29. It leaves 11.9 dB of headroom on the Freya Vanir and 30.9 dB on the Sylvie, its output impedance is 0.7 Ω against a one-eighth limit of 2.00 Ω for both, and its noise figure puts the hiss floor 29 dB and 10 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| Freya Vanir | 20Hz – 20kHz | not printed | not printed |
| Sylvie | 20Hz - 20kHz | not printed | not printed |
Kinera prints 20Hz – 20kHz for the Freya Vanir and 20Hz - 20kHz for the Sylvie.
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 have a page of their own. In full: Kinera Freya Vanir and Kinera Sylvie. 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.