Lexicon
4-25
5. Verify the output level reading is between at the following frequency settings.
Freq. Upper Lower
Hz (Vrms) dBu (Vrms) dBu
20,000 (.002) -52.82 (.001) -56.94
16,000 (.004) -45.07 (.003) -49.19
12,000 (.015) -34.44 (.009) -38.56
10,000 (.030) -27.34 (.020) -31.46
4,000 (2.5) 10.08 (1.5) 5.96
2,000 (1.3) 4.27 (.80) 0.15
997 (1.0) 2.06 (.60) -2.06
250 (1.1) 2.83 (.70) -1.29
100 (2.0) 8.09 (1.2) 3.97
60 (.40) -5.98 (.25) -10.10
20 (.030) -27.80 (.020) -31.92
Frequency Response Measurement set at 4.2 K:
1. Turn the knob CCW to turn the Devel HPeak Off.
2. Press the No button once. The display will read Devel Shelf On. Turn the knob CCW to set this to Off.
3. Press the No button once. The display reads: Devel SFreq 3.0k. Turn the knob CW to set the frequency
to 4.2k.
4. Disable all Filters on the Distortion Analyzer.
5. Apply a 1kHz-sinewave signal at -17dBu (109 mVRMS).
6. Set the Analyzer for a 0dB reference.
7. Verify the output level reading is between at the following frequency settings.
Freq. Upper Lower
Hz (Vrms) dBu (Vrms) dBu
20,000 (.020) -31.55 (.010) -35.67
16,000 (.060) -22.39 (.040) -26.51
12,000 (.25) -9.78 (.15) -13.90
10,000 (.70) -0.68 (.45) -4.50
4,000 (1.0) 2.17 (.60) -1.95
2,000 (.85) 0.64 (.50) -3.48
997 (1.0) 2.06 (.60) -2.06
250 (1.7) 6.95 (1.1) 2.83
100 (3.4) 12.81 (2.0) 8.69
60 (.70) -1.21 (.40) -5.33
20 (.055) -23.03 (.035) -27.15
Frequency Response Measurement set at 5.8 K:
1. Turn the knob CW to set the SFreq to 5.8k.
2. Disable all Filters on the Distortion Analyzer.
3. Apply a 1kHz-sinewave signal at -17dBu (109 mVRMS).
4. Set the Analyzer for a 0dB reference.
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