Bose Lifestyle SA-2 Руководство - Страница 31
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1. Channel Gain Test
1.1 Apply a 100 mVrms, 1 kHz signal to the left and right channel inputs.
1.2 Reference a dB meter to the applied signal.
1.3 Measure the output level at the left and right channel.
1.3.1 Left Channel Output: 34.9 +/- 1.5dB
1.3.2 Right Channel Output: 34.9 +/- 1.5dB
2. Output Noise ( A weighted, inputs shorted)
2.1 Short the left and right channel inputs.
2.2 Measure the left and right outputs.
2.2.1 Left Channel: <500 uVrms
2.2.1 Left Channel: <500 uVrms
3. Large Signal Distortion
3.1 Apply a 250 mVrms, 1 kHz signal to the left and right channel inputs.
3.2 Measure the THD + Noise (400 - 30kHz bandwidth).
3.2.1 Left Channel: < 0.2%
3.2.2 Right Channel: < 0.2%
4. Compressor Distortion
4.1 Apply an 875 mVrms, 1 kHz signal to the left and right channel inputs.
4.2 Measure the output level at the left and right channel.
4.2.1 Left Channel: < 6.0%
4.2.2 Right Channel: < 6.0%
TEST PROCEDURES
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