| Output | Cowon iAudio X5 Firmware 2.07e, BBE Off, Mach3Bass Off, Equalizer - Normal |
| Input | Analog-digital converter used: Sony JE510 Minidisc player, digital data directly transfered to computer |
| Frequency response (from 40 Hz to 15 kHz), dB: | +0.30, -2.36 | Average |
| Noise level, dB (A): | -91.5 | Very good |
| Dynamic range, dB (A): | 91.5 | Very good |
| THD, %: | 0.013 | Good |
| IMD + Noise, %: | 1.728 | Poor |
| Stereo crosstalk, dB: | -85.1 | Excellent |
| IMD at 10 kHz, %: | 0.013 | Very good |
| Frequency range | Response |
| From 20 Hz to 20 kHz, dB | -5.81, +0.45 |
| From 40 Hz to 15 kHz, dB | -2.36, +0.30 |
| Parameter | Left | Right |
| RMS power, dB: | -89.8 | -89.9 |
| RMS power (A-weighted), dB: | -91.5 | -91.5 |
| Peak level, dB FS: | -76.6 | -75.0 |
| DC offset, %: | -0.00 | -0.00 |
| Parameter | Left | Right |
| Dynamic range, dB: | +90.1 | +90.1 |
| Dynamic range (A-weighted), dB: | +91.7 | +91.5 |
| DC offset, %: | -0.00 | -0.00 |
| Parameter | Left | Right |
| THD, %: | 0.0130 | 0.0135 |
| THD + Noise, %: | 0.0166 | 0.0170 |
| THD + Noise (A-weighted), %: | 0.0199 | 0.0205 |
| Parameter | Left | Right |
| IMD + Noise, %: | 1.7281 | 1.8992 |
| IMD + Noise (A-weighted), %: | 0.3084 | 0.3372 |
| Parameter | L <- R | L -> R |
| Crosstalk at 100 Hz, dB: | -89 | -87 |
| Crosstalk at 1 kHz, dB: | -84 | -84 |
| Crosstalk at 10 kHz, dB: | -65 | -64 |
| Parameter | Left | Right |
| IMD + Noise at 5 kHz, %: | 0.0113 | 0.0116 |
| IMD + Noise at 10 kHz, %: | 0.0136 | 0.0133 |
| IMD + Noise at 15 kHz, %: | 0.0143 | 0.0142 |
