The TRN Azure Dragon is 32Ω at 108.0 dB (no reference unit printed); the TRN MT1 is 22Ω at 106.0 dB (no reference unit printed). This page covers what they ask of an amplifier, not how they sound.
The MT1 needs 2.0 dB more than the Azure Dragon to reach the same loudness — 0.25 mW against 0.16 mW.
| Specification | Azure Dragon | MT1 |
|---|---|---|
| Impedance | 32 Ω | 22 Ω |
| Sensitivity | 108.0 dB | 106.0 dB |
| Sensitivity (voltage) | 122.9 dB/V | 122.6 dB/V |
| Power for 100 dB | 0.16 mW | 0.25 mW |
| Voltage for 100 dB | 71 mV | 74 mV |
| Current for 100 dB | 2.2 mA | 3.4 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 4.00 Ω | 2.75 Ω |
| Sources that reach 100 dB out of 280 | 280 | 280 |
One caution before reading the rows. TRN Azure Dragon and TRN MT1 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.
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 MT1 but crosses it with the Azure Dragon (FiiO K11 R2R).
280 of the 280 sources here reach 100 dB on both.
The MT1 is more demanding than 23% of the 567 non-electrostatic models in this database; the Azure Dragon than 23%.
| dB SPL | Azure Dragon power | Azure Dragon voltage | MT1 power | MT1 voltage |
|---|---|---|---|---|
| 80 | 1.6 µW | 7 mV | 2.5 µW | 7 mV |
| 85 | 5.0 µW | 13 mV | 7.9 µW | 13 mV |
| 90 | 0.02 mW | 23 mV | 0.03 mW | 24 mV |
| 95 | 0.05 mW | 40 mV | 0.08 mW | 42 mV |
| 100 | 0.16 mW | 71 mV | 0.25 mW | 74 mV |
| 105 | 0.50 mW | 0.13 V | 0.79 mW | 0.13 V |
| Source | Price | Headroom, Azure Dragon | Headroom, MT1 | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 22.8 dB | 19.1 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 31.0 dB | 29.4 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 28.0 dB | 26.3 dB | 0.6 Ω | 1.0 µV |
Of the 280 sources here, 280 reach 100 dB on both. 66 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 66 is the JadeAudio JA11, at $20. It leaves 22.8 dB of headroom on the Azure Dragon and 19.1 dB on the MT1, its output impedance is 0.5 Ω against a one-eighth limit of 4.00 Ω and 2.75 Ω, and its noise figure puts the hiss floor 12 dB and 13 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| Azure Dragon | 7Hz-40KHz | not printed | not printed |
| MT1 | 20Hz-20000Hz | not printed | not printed |
TRN prints 7Hz-40KHz for the Azure Dragon and 20Hz-20000Hz for the MT1.
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: TRN Azure Dragon and TRN MT1. Each figure on this page is labelled on those pages with where it came from, including the ones TRN never published — what that maker publishes, counted.