31
TEST PROCEDURES
9. Center Channel Frequency Response
9.1 Apply a 2.5kHz, 50mVrms signal to the
left and right inputs (in phase).
9.2 Reference a dB meter to the center
channel output.
9.3 Measure the center channel output
according to the following table.
FREQUENCY RESPONSE
7. Bass Channel
7.1 Apply a 100Hz, 30mVrms signal to the
left and right inputs (in phase).
7.2 Reference a dB meter to the bass
channel output. Measure the bass channel
output according to the following table.
Frequency
Output
Tolerence
20Hz
-17.0dB
±
3.0dB
35Hz
+6.9dB
±
2.0dB
100Hz
0dB
(reference)
-
140Hz
-0.1dB
±
1.5dB
190Hz
+3.8dB
±
1.5dB
400Hz
-24.6dB
±
3.5dB
10. Surround Channel Frequency
Response
10.1 Apply a 2.5kHz, 50mVrms signal to
the left and right inputs (out of phase).
10.2 Reference a dB meter to the surround
channel output.
10.3 Measure the surround channel output
according to the following table.
8. Left, Right Channel Frequency Re-
sponse
8.1
Apply a 2.5kHz, 100mVrms signal to
the left or right channel only.
8.2 Reference a dB meter to the output of
the same channel as the applied signal in
8.1.
8.3 Measure the left or right channel output
according to the following table.
Note: Perform this test for both channels.
Frequency
Output
Tolerence
150Hz
-8.6dB
±
3.0dB
240Hz
+8.6dB
±
1.8dB
440Hz
+2.2dB
±
1.5dB
750Hz
+3.2dB
±
1.5dB
2.5kHz
0dB
(reference)
-
12kHz
+4.8dB
±
1.5dB
20kHz
-11.3dB
±
3.0dB
Frequency
Output
Tolerence
150Hz
-13.1dB
±
3.0dB
240Hz
+7.0dB
±
1.5dB
550Hz
+0.7dB
±
1.5dB
800Hz
+2.7dB
±
1.5dB
2.5kHz
0dB
(reference)
-
12kHz
+6.5dB
±
1.5dB
20kHz
-7.3dB
±
3.0dB
Frequency
Output
Tolerence
150Hz
-8.6dB
±
3.0dB
240Hz
+10.1dB
±
1.5dB
440Hz
+1.1dB
±
1.5dB
750Hz
+3.1dB
±
1.5dB
2.5kHz
0dB
(reference)
-
12kHz
+4.8dB
±
1.5dB
20kHz
-11.3dB
±
2.5dB
