Bose 1800-V Manual page 31

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.
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.
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
40
140
600
2200
5000
15000
FREQUENCY
40
80
100
300
FREQUENCY
40
55
140
700
2500
6000
14500
OUTPUT SPECIFICATION (dbr)
-28.5 ± 2.0 dB
+3.7 ± 1.5 dB
0.0
+3.5 ± 1.5 dB
+12.5 ± 1.5 dB
+19.0 ± 1.5 dB
OUTPUT SPECIFICATION (dbr)
-6.2 ± 2.0 dB
0.0
+1.3 ± 1.0 dB
-17.5 ± 2.0 dB
OUTPUT SPECIFICATION (dbr)
+8.0±1.5 dB
+13.5±1.5 dB
+6.6±1.5 dB
0.0 dB
+2.1±1.5 dB
+9.6±1.5 dB
+16.7±1.5 dB
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