The Tanchjim FOLA is 16Ω at 108.0 dB/mW; the Tanchjim ORIGIN (Lost Manor) is 16Ω at 106.0 dB/mW. This page covers what they ask of an amplifier, not how they sound.
The ORIGIN (Lost Manor) needs 2.0 dB more than the FOLA to reach the same loudness — 0.25 mW against 0.16 mW.
| Specification | FOLA | ORIGIN (Lost Manor) |
|---|---|---|
| Impedance | 16 Ω | 16 Ω |
| Sensitivity | 108.0 dB/mW | 106.0 dB/mW |
| Sensitivity (voltage) | 126.0 dB/V | 124.0 dB/V |
| Power for 100 dB | 0.16 mW | 0.25 mW |
| Voltage for 100 dB | 50 mV | 63 mV |
| Current for 100 dB | 3.1 mA | 4.0 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 | 280 | 280 |
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.
10 sources stay below the audible-hiss threshold with the ORIGIN (Lost Manor) but cross it with the FOLA (Lake People G103-S Mk II, Schiit Valhalla 3, FiiO M33 R2R, 7 more).
280 of the 280 sources here reach 100 dB on both.
The ORIGIN (Lost Manor) is more demanding than 18% of the 567 non-electrostatic models in this database; the FOLA than 11%.
| dB SPL | FOLA power | FOLA voltage | ORIGIN (Lost Manor) power | ORIGIN (Lost Manor) voltage |
|---|---|---|---|---|
| 80 | 1.6 µW | 5 mV | 2.5 µW | 6 mV |
| 85 | 5.0 µW | 9 mV | 7.9 µW | 11 mV |
| 90 | 0.02 mW | 16 mV | 0.03 mW | 20 mV |
| 95 | 0.05 mW | 28 mV | 0.08 mW | 36 mV |
| 100 | 0.16 mW | 50 mV | 0.25 mW | 63 mV |
| 105 | 0.50 mW | 90 mV | 0.79 mW | 0.11 V |
| Source | Price | Headroom, FOLA | Headroom, ORIGIN (Lost Manor) | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 19.8 dB | 17.8 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 31.9 dB | 29.9 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 28.8 dB | 26.8 dB | 0.6 Ω | 1.0 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 19.8 dB of headroom on the FOLA and 17.8 dB on the ORIGIN (Lost Manor), its output impedance is 0.5 Ω against a one-eighth limit of 2.00 Ω for both, and its noise figure puts the hiss floor 9 dB and 11 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| FOLA | 2-48 kHZ | not printed | not printed |
| ORIGIN (Lost Manor) | 2-48KHZ | not printed | not printed |
Tanchjim prints 2-48 kHZ for the FOLA and 2-48KHZ for the ORIGIN (Lost Manor).
For both: Tanchjim prints this row in Chinese and puts the unit only on the upper figure, so the lower number carries no unit of its own.
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: Tanchjim FOLA and Tanchjim ORIGIN (Lost Manor). Every figure on this page comes from what Tanchjim published, or is derived from it — what that maker publishes, counted.