The Sivga Luan is 38Ω at 100.0 dB (no reference unit printed); the Sivga SV021 Robin is 32Ω at 105.0 dB (no reference unit printed). This page covers what they ask of an amplifier, not how they sound.
The Luan needs 5.0 dB more than the SV021 Robin to reach the same loudness — 1.0 mW against 0.32 mW.
| Specification | Luan | SV021 Robin |
|---|---|---|
| Impedance | 38 Ω | 32 Ω |
| Sensitivity | 100.0 dB | 105.0 dB |
| Sensitivity (voltage) | 114.2 dB/V | 119.9 dB/V |
| Power for 100 dB | 1.0 mW | 0.32 mW |
| Voltage for 100 dB | 0.19 V | 0.10 V |
| Current for 100 dB | 5.1 mA | 3.1 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 4.75 Ω | 4.00 Ω |
| Sources that reach 100 dB out of 280 | 280 | 280 |
One caution before reading the rows. Sivga Luan and Sivga SV021 Robin 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 is low enough in output impedance for the Luan under the one-eighth rule but not for the SV021 Robin (Shanling H5).
280 of the 280 sources here reach 100 dB on both.
The Luan is more demanding than 57% of the 567 non-electrostatic models in this database; the SV021 Robin than 34%.
| dB SPL | Luan power | Luan voltage | SV021 Robin power | SV021 Robin voltage |
|---|---|---|---|---|
| 80 | 0.01 mW | 19 mV | 3.2 µW | 10 mV |
| 85 | 0.03 mW | 35 mV | 0.01 mW | 18 mV |
| 90 | 0.10 mW | 62 mV | 0.03 mW | 32 mV |
| 95 | 0.32 mW | 0.11 V | 0.10 mW | 57 mV |
| 100 | 1.0 mW | 0.19 V | 0.32 mW | 0.10 V |
| 105 | 3.2 mW | 0.35 V | 1.0 mW | 0.18 V |
| Source | Price | Headroom, Luan | Headroom, SV021 Robin | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 14.0 dB | 19.8 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 22.3 dB | 28.0 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR11 | $36 | 14.0 dB | 19.8 dB | 0.5 Ω | 8.0 µV |
Of the 280 sources here, 280 reach 100 dB on both. 69 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 69 is the JadeAudio JA11, at $20. It leaves 14.0 dB of headroom on the Luan and 19.8 dB on the SV021 Robin, its output impedance is 0.5 Ω against a one-eighth limit of 4.75 Ω and 4.00 Ω, and its noise figure puts the hiss floor 21 dB and 15 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| Luan | 20Hz - 40KHz | not printed | not printed |
| SV021 Robin | 20Hz - 20KHz | not printed | not printed |
Sivga prints 20Hz - 40KHz for the Luan and 20Hz - 20KHz for the SV021 Robin.
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: Sivga Luan and Sivga SV021 Robin. Each figure on this page is labelled on those pages with where it came from, including the ones Sivga never published — what that maker publishes, counted.