| Device | DAC | Noise Level | Full-scale Level | SNR | Freq Resp | THD+N |
|---|---|---|---|---|---|---|
| MacBook Air 13 Early 2017 | Cirrus Logic CS4208 | -96.1 dBu | -0.6 dBu | 87.9 dB | -0.0 +0.0 | -93.6 dB |
| MacBook Pro 15 Mid 2015 | Cirrus Logic CS4208 | -94.0 dBu | 4.8 dBu | 98.8 dB | -0.0 +0.0 | -93.1 dB |
| MacBook Air 13 Late 2020 | ? | -101.3 dBu | 2.2 dBu | 103.5 dB | -0.1 +0.0 | -92.0 dB |
| iPhone 6 | Cirrus Logic 338S1201 | -101 dBu | 2.2 dBu | 88.2 dB | -0.1 +0.0 | -89.8 dB |
| ThinkPad X201 | Conexant CX20585 | -86.5 dBu | -7.1 dBu | 77.0 dB | -0.2 +0.0 | -86.8 dB |
| ThinkPad X220 | Conexant CX20672 | -86.9 dBu | -6.4 dBu | 77.9 dB | -0.2 +0.0 | -86.6 dB |
| ThinkPad X230 | Realtek ALC269 | -83.1 dBu | -6.4 dBu | 77.9 dB | -0.1 +0.0 | -85.8 dB |
| MacBook Pro 13 Late 2011 | Cirrus Logic CS4206B | -85.8 dBu | 4.8 dBu | 87.2 dB | -0.9 +0.0 | -82.6 dB |
| ThinkPad X200 | Conexant CX20561 | -77.9 dBu | 1.1 dBu | 75.3 dB | -0.1 +0.0 | -79.3 dB |
| ThinkPad X61 | Analog Devices AD1984 | -78.6 dBu | 0.7 dBu | 76.9 dB | -0.2 +0.0 | -75.6 dB |
| ThinkPad X40 | Analog Devices AD1981B | -93.1 dBu | 0.5 dBu | 75.3 dB | -0.1 +0.1 | -74.5 dB |
| ThinkPad X41 | Analog Devices AD1981B | -90.3 dBu | 0.1 dBu | 72.1 dB | -0.2 +0.1 | -74.3 dB |
| ThinkPad X301 | Analog Devices AD1984A | -82.9 dBu | -10.6 dBu | 66.5 dB | -0.1 +0.0 | -69.2 dB |
| ThinkPad X60 | Analog Devices AD1981HD | -91.0 dBu | 1.1 dBu | 75.0 dB | -1.9 +0.0 | -68.8 dB |
| ThinkPad X20 | Cirrus Logic CS4281 | -83.4 dBu | -4.0 dBu | 66.3 dB | -0.4 +0.4 | -56.2 dB |
| ThinkPad X30 | Analog Devices AD1981A | -83.5 dBu | -0.6 dBu | 68.6 dB | -0.6 +0.1 | -53.7 dB |
| ThinkPad X31 | Analog DEvices AD1981B | -82.7 dBu | -0.9 dBu | 67.7 dB | -0.7 +0.1 | -53.4 dB |
| ThinkPad X23 | Cirrus Logic CS4299 | -83.5 dBu | -2.2 dBu | 66.2 dB | -0.5 +0.4 | -51.4 dB |
Note:
- The full-scale level means the highest output level without clipping.
- The noise-level means the lowest A-weighted noise level at any volume settings.
- The SNR is measured with a -60dBFS sine tone at 997 Hz presenting (AES17 standard).
- The THD+N is the average THD+N between 20Hz and 10kHz at 1/3 octave step (AES17).
- The frequency response is the worst value between 20Hz and 15kHz.