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3. 502B Equalizer Curve
Use the following test set-up parameters when measuring the 502B card's response outputs:
A. Apply a signal of 80 Hz at 1 Vrms and adjust the amplifier's output to 6 Vrms.
B. Reference a dB meter to the output.
C. Measure the response according to the following chart.
4. 802 Equalizer Curve
Use the following test set-up parameters when measuring Full Range or High Frequency response
outputs:
A. Apply a signal of 700 Hz at 1 Vrms and adjust the amplifier's output to 6 Vrms.
B. Reference a dB meter to the output.
C. Measure the response according to the charts in Sections 4.1 and 4.2.
2.2 502A High Frequency Response
IMPORTANT: Set the Input Module's S2 switch to the HF Only (High Frequency) position before
beginning this test.
4.1 802 Full Range Frequency Response
IMPORTANT: Set the Input Module's S2 switch to the Full Bandwidth (Full Range) position before
beginning this test.
FREQUENCY OUTPUT SPECIFICATION (dbr)
40 -28.5 ± 2.0 dB
140 +3.7 ± 1.5 dB
600 0.0
2200 +3.5 ± 1.5 dB
5000 +12.5 ± 1.5 dB
15000 +19.0 ± 1.5 dB
FREQUENCY OUTPUT SPECIFICATION (dbr)
40 -6.2 ± 2.0 dB
80 0.0
100 +1.3 ± 1.0 dB
300 -17.5 ± 2.0 dB
FREQUENCY OUTPUT SPECIFICATION (dbr)
40 +8.0±1.5 dB
55 +13.5±1.5 dB
140 +6.6±1.5 dB
700 0.0 dB
2500 +2.1±1.5 dB
6000 +9.6±1.5 dB
14500 +16.7±1.5 dB
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