| Test | SuperDual 300 ohm | SuperDual 27 ohm | EMU 1212M loopback |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.02, -0.13 | +0.02, -0.13 | +0.03, -0.20 |
| Noise level, dB (A): | -93.7 | -86.9 | -105.8 |
| Dynamic range, dB (A): | 93.0 | 86.2 | 105.6 |
| THD, %: | 0.0017 | 0.015 | 0.0003 |
| IMD, %: | 0.0068 | 0.019 | 0.0019 |
| Stereo crosstalk, dB: | -89.8 | -73.3 | -87.6 |