The Verum Audio Verum 1 is 8Ω at 107.0 dB/mW; the Verum Audio Verum 2 is 8Ω at 96.0 dB/mW. This page covers what they ask of an amplifier, not how they sound.
The Verum 2 needs 11.0 dB more than the Verum 1 to reach the same loudness — 2.5 mW against 0.20 mW.
| Specification | Verum 1 | Verum 2 |
|---|---|---|
| Impedance | 8 Ω | 8 Ω |
| Sensitivity | 107.0 dB/mW | 96.0 dB/mW |
| Sensitivity (voltage) | 128.0 dB/V | 117.0 dB/V |
| Power for 100 dB | 0.20 mW | 2.5 mW |
| Voltage for 100 dB | 40 mV | 0.14 V |
| Current for 100 dB | 5.0 mA | 17.7 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 1.00 Ω | 1.00 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.
16 sources stay below the audible-hiss threshold with the Verum 2 but cross it with the Verum 1 (FiiO BTR11, FiiO K11 R2R, Lake People G103-S Mk II, 13 more).
280 of the 280 sources here reach 100 dB on both.
The Verum 2 is more demanding than 45% of the 567 non-electrostatic models in this database; the Verum 1 than 7%.
| dB SPL | Verum 1 power | Verum 1 voltage | Verum 2 power | Verum 2 voltage |
|---|---|---|---|---|
| 80 | 2.0 µW | 4 mV | 0.03 mW | 14 mV |
| 85 | 6.3 µW | 7 mV | 0.08 mW | 25 mV |
| 90 | 0.02 mW | 13 mV | 0.25 mW | 45 mV |
| 95 | 0.06 mW | 22 mV | 0.79 mW | 80 mV |
| 100 | 0.20 mW | 40 mV | 2.5 mW | 0.14 V |
| 105 | 0.63 mW | 71 mV | 7.9 mW | 0.25 V |
| Source | Price | Headroom, Verum 1 | Headroom, Verum 2 | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 15.8 dB | 4.8 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 27.9 dB | 16.9 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 24.8 dB | 13.8 dB | 0.6 Ω | 1.0 µV |
Of the 280 sources here, 280 reach 100 dB on both. 48 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 48 is the JadeAudio JA11, at $20. It leaves 15.8 dB of headroom on the Verum 1 and 4.8 dB on the Verum 2, its output impedance is 0.5 Ω against a one-eighth limit of 1.00 Ω for both, and its noise figure puts the hiss floor 7 dB and 18 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| Verum 1 | nothing printed | — | — |
| Verum 2 | nothing printed | — | — |
Verum Audio prints the same thing for both the Verum 1 and the Verum 2: nothing at all.
There is nothing here to compare, and that is worth saying plainly rather than filling the gap with somebody else’s measurement. Of the 578 models checked against a maker document so far, 490 carry a printed range and only 58 of those print the ±dB tolerance that would make a range mean anything.
Not a measurement; maker by maker.
Both have a page of their own. In full: Verum Audio Verum 1 and Verum Audio Verum 2. Every figure on this page comes from what Verum Audio published, or is derived from it — what that maker publishes, counted.