Bose AmPlus 50 Supplement Manual page 31

Freq. Input
95 Hz 31.5 mV
250 Hz 31.5 mV
1 kHz 31.5 mV
2 kHz 31.5 mV
4 kHz 31.5 mV
8 kHz 31.5 mV
12.5 kHz 31.5 mV
Table 13. Model 8 Full Range Response Tests
1.8 Shut off the AmPlus™ Amplifier and on
the main PCB for the amplifier, place switch
S4 to the HPF ON position.
1.9 Turn on the AmPlus Amplifier and
perform the tests as listed in Table 14,
Model 8 High Frequency Response Tests.
Freq. Input
95 Hz 31.5 mV
250 Hz 31.5 mV
1 kHz 31.5 mV
2 kHz 31.5 mV
4 kHz 31.5 mV
8 kHz 31.5 mV
12.5 kHz 31.5 mV
Table 14. Model 8 High Frequency Response
Tests
Model 25/32 Equalizer PCB Response
Tests
1.1 Set up the AmPlus Amplifier as listed in
the Test Setup Notes.
1.2 Apply a 31.5 mVrms, 1 kHz signal to
the AmPlus Amplifier inputs at J1.
1.3 Reference a dB meter to the output
level at J6. This is the reference level for
this test.
1.4 Shut off the AmPlus Amplifier and
install the Model 25/32 Equalizer PCB into
the EQ jack for the channel you are using
for this test, J9 for channel 1 or J10 for
channel 2.
TEST PROCEDURES
Output Level
+11.3 dB ± 1.5 dB
+4.5 dB ± 1.5 dB
REFERENCE
+3.0 dB ± 1.5 dB
+7.0 dB ± 1.5 dB
+11.0 dB ± 1.5 dB
+12.0 dB ± 2.5 dB
Output Level
-4.5 dB ± 1.5 dB
+2.5 dB ± 1.5 dB
REFERENCE
+3.0 dB ± 1.5 dB
+7.0 dB ± 1.5 dB
+11.0 dB ± 1.5 dB
+12.0 dB ± 2.5 dB
1.5 Turn on the AmPlus Amplifier and
measure the gain. There should be a
-4.8 dB ± 1.0 dB change in gain at the
output.
1.6 Reference a dB meter to the output
level at J6.
1.7 Perform the tests as listed in Table 15,
Model 25/32 Full Range Response Tests.
Freq. Input
95 Hz 31.5 mV
250 Hz 31.5 mV
1 kHz 31.5 mV
2 kHz 31.5 mV
4 kHz 31.5 mV
8 kHz 31.5 mV
12.5 kHz 31.5 mV
Table 15. Model 25/32 Full Range Response
1.8 Shut off the AmPlus Amplifier and on
the main PCB for the amplifier, place
switch S4 to the HPF ON position.
1.9 Perform the tests as listed in Table 16,
Model 25/32 High Frequency Response
Tests.
Freq. Input
95 Hz 31.5 mV
250 Hz 31.5 mV
1 kHz 31.5 mV
2 kHz 31.5 mV
4 kHz 31.5 mV
8 kHz 31.5 mV
12.5 kHz 31.5 mV
Table 16. Model 25/32 High Frequency
Response Tests
31
Output Level
+12.3 dB ± 1.5 dB
+4.4 dB ± 1.5 dB
REFERENCE
+2.0 dB ± 1.5 dB
+7.6 dB ± 1.5 dB
+12.0 dB ± 1.5 dB
+15.0 dB ± 2.5 dB
Tests
Output Level
-3.0 dB ± 1.5 dB
+3.0 dB ± 1.5 dB
REFERENCE
+2.0 dB ± 1.5 dB
+7.6 dB ± 1.5 dB
+12.0 dB ± 1.5 dB
+15.0 dB ± 2.5 dB