This article presents basic audio performance test results of analog audio IC operational amplifiers as measured using:
Test | LM4562 | NE5532 | LM833N | Audigy 2ZS Platinum Pro Ref |
Frequency response (from 40 Hz to 15 kHz), dB: | +0.02, -0.08 | +0.02, -0.08 | +0.02, -0.08 | +0.01, -0.06 |
Noise level, dB (A): | -98.3 | -98.3 | -98.3 | -105.6 |
Dynamic range, dB (A): | 98.5 | 97.9 | 98.1 | 105.5 |
THD, %: | 0.0026 | 0.0025 | 0.0025 | 0.0023 |
IMD + Noise, %: | 0.0041 | 0.0042 | 0.0040 | 0.0028 |
Stereo crosstalk, dB: | -50.4 | -49.8 | -49.7 | -103.7 |
Test | LM4562 | LM4562 2 | NE5532 | LM833N |
Frequency response (from 40 Hz to 15 kHz), dB: | +0.05, -0.38 | +0.05, -0.38 | +0.17, -1.41 | +0.28, -2.13 |
Noise level, dB (A): | -80.1 | -80.1 | -73.9 | -77.3 |
Dynamic range, dB (A): | 80.1 | 80.0 | 74.0 | 77.3 |
THD, %: | 0.0052 | 0.0053 | 0.014 | 0.015 |
IMD + Noise, %: | 0.027 | 0.027 | 0.055 | 0.038 |
Stereo crosstalk, dB: | -43.0 | -42.3 | -39.5 | -41.3 |