| Test | Aune X1 MK2 Coax 16/44 | Aune X1 MK2 Coax 16/48 | Aune X1 MK2 Coax 24/44 | Aune X1 MK2 Coax 24/48 | Aune X1 MK2 Coax 24/96 | Aune X1 MK2 Coax 24/192 |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.01, -0.07 | +0.01, -0.07 | +0.01, -0.07 | +0.01, -0.07 | +0.01, -0.07 | +0.01, -0.08 |
| Noise level, dB (A): | -96.0 | -96.4 | -105.1 | -105.1 | -105.0 | -104.8 |
| Dynamic range, dB (A): | 96.1 | 96.5 | 105.1 | 105.1 | 104.9 | 104.8 |
| THD, %: | 0.0010 | 0.0012 | 0.0010 | 0.0012 | 0.0021 | 0.0042 |
| IMD + Noise, %: | 0.0047 | 0.0046 | 0.0022 | 0.0024 | 0.0030 | 0.0048 |
| Stereo crosstalk, dB: | -85.9 | -85.7 | -85.8 | -86.0 | -85.7 | -86.1 |
