| Test | TubeFire8 16-bit/44.1 kHz | TubeFire8 24-bit/44.1 kHz | TubeFire8 24-bit/88.2 kHz | TubeFire8 24-bit/96 kHz |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.00, +0.00 | +0.04, -0.16 | +0.04, -0.16 | +0.04, -0.16 |
| Noise level, dB (A): | -95.5 | -104.4 | -106.5 | -106.8 |
| Dynamic range, dB (A): | 95.8 | 104.3 | 93.6 | 93.8 |
| THD, %: | 0.081 | 0.081 | 0.080 | 0.080 |
| IMD + Noise, %: | 0.077 | 0.077 | 0.075 | 0.076 |
| Stereo crosstalk, dB: | -94.0 | -95.4 | -97.2 | -98.0 |