BK Electronics IS300-A, Owner'S Manual, Page: 10 / 11

(8)
For bypass switch 4 must be set to the OFF position and Switch 5 to the
ON position when in bypass mode switches 1,2,3,6,7 and 8 have no effect
1 2 3 5 4 6
ON
15Hz
7 8
20Hz
25Hz
30Hz
1 2 3 5 4 6
ON
7 8
1 2 3 5 4 6
ON
7 8
1 2 3 5 4 6
ON
7 8
Bypass
1 2 3 5 4 6
ON
7 8
PARAMETRIC EQ. SWITCHING