Alto L-6, Service Manual, Page: 19 / 28

b. Turn EQ HI &LOW knob to the MAX and the MIN (EQ MID at the middle), test
the frequency response, the frequency response curve is shown as follows, please
refer to the following figure.
c. Turn EQ MID to the MAX and the MIN (EQ HI &LOW at the middle), test the
frequency response, the frequency response curve is shown as follows, please
refer to the following figure.
Audio Precision 07/21/03 15:54:30
-30
+20
-25
-20
-15
-10
-5
+0
+5
+10
+15
d
B
m
20 20k 50 100 200 500 1k 2k 5k 10k
Hz
Audio Precision 07/21/03 15:52:05
-30
+20
-25
-20
-15
-10
-5
+0
+5
+10
+15
d
B
m
20 20k 50 100 200 500 1k 2k 5k 10k
Hz