The Dunu DN-142 is 37Ω at 107.0 dB/mW; the Dunu Vulkan 2 is 35Ω at 113.0 dB/mW. This page covers what they ask of an amplifier, not how they sound.
The DN-142 needs 6.0 dB more than the Vulkan 2 to reach the same loudness — 0.20 mW against 0.05 mW.
| Specification | DN-142 | Vulkan 2 |
|---|---|---|
| Impedance | 37 Ω | 35 Ω |
| Sensitivity | 107.0 dB/mW | 113.0 dB/mW |
| Sensitivity (voltage) | 121.3 dB/V | 127.6 dB/V |
| Power for 100 dB | 0.20 mW | 0.05 mW |
| Voltage for 100 dB | 86 mV | 42 mV |
| Current for 100 dB | 2.3 mA | 1.2 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 4.62 Ω | 4.38 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 DN-142 but cross it with the Vulkan 2 (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 DN-142 is more demanding than 26% of the 567 non-electrostatic models in this database; the Vulkan 2 than 7%.
| dB SPL | DN-142 power | DN-142 voltage | Vulkan 2 power | Vulkan 2 voltage |
|---|---|---|---|---|
| 80 | 2.0 µW | 9 mV | 0.5 µW | 4 mV |
| 85 | 6.3 µW | 15 mV | 1.6 µW | 7 mV |
| 90 | 0.02 mW | 27 mV | 5.0 µW | 13 mV |
| 95 | 0.06 mW | 48 mV | 0.02 mW | 24 mV |
| 100 | 0.20 mW | 86 mV | 0.05 mW | 42 mV |
| 105 | 0.63 mW | 0.15 V | 0.16 mW | 74 mV |
| Source | Price | Headroom, DN-142 | Headroom, Vulkan 2 | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 21.1 dB | 27.4 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 29.4 dB | 35.6 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 26.4 dB | 32.6 dB | 0.6 Ω | 1.0 µV |
Of the 280 sources here, 280 reach 100 dB on both. 55 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 55 is the JadeAudio JA11, at $20. It leaves 21.1 dB of headroom on the DN-142 and 27.4 dB on the Vulkan 2, its output impedance is 0.5 Ω against a one-eighth limit of 4.62 Ω and 4.38 Ω, and its noise figure puts the hiss floor 14 dB and 8 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| DN-142 | 5Hz – 40kHz | not printed | not printed |
| Vulkan 2 | 5Hz – 40kHz | not printed | not printed |
Dunu prints the same thing for both the DN-142 and the Vulkan 2: 5Hz – 40kHz.
Neither range has a tolerance printed beside it, so the matching numbers say little.
Not a measurement; maker by maker.
Both have a page of their own. In full: Dunu DN-142 and Dunu Vulkan 2. Every figure on this page comes from what Dunu published, or is derived from it — what that maker publishes, counted.