Rockford Fosgate 250 sERIES Installation & Operation Manual page 21

Bridged Operation
Speaker
+ L –
+
Speaker
Terminal
• RCA inputs are connected to both left and right channels
• Signal Input Switch selected to Unbalanced for RCA input
• Left Phase Switch set to 0
• Right Phase Switch set to 180
• Inverting the right signal will allow the bridged woofer to operate correctly
• Gain for left and right channels set equally to balance the subwoofer
• Impedance for bridged channel should be 4 minimum
• XCard is in High-Pass , Low-Pass or Full Range position
EZ-Bridged Operation
Speaker
+ L –
+
Speaker
Terminal
• RCA input is connected to L (Mono) input
• Signal Input Switch to Unbalanced for RCA input
• Left Phase Switch at 0
• Right Phase Switch set to E-Z Bridge for the following to occur:
L (Mono) RCA input to drive both the left and right channels
Left Gain will control both the left and right channels
Right Phase will be inverted 180 which will allow the bridged woofer to operate
correctly
• Impedance for bridged channel should be 4 minimum
• XCard is in the High-Pass , Low-Pass or Full Range position
RCA Input
Unbal.
L (Mono) R
0 -180
Bal.
Bal.
Pass Input
Thru
L R
Gain
+
4 min.
Mono
Input
Unbal.
R
L (Mono)
0 -180
Bal.
Bal.
Input
Pass
Thru
L R
Gain
+
4 min.
E Z - 1 8 0 - 0
Speaker
Bridged – R +
Gain
Speaker
–
Terminal
E Z - 1 8 0 - 0 Speaker
– R +
Bridged
Gain
Speaker
–
Terminal
– 17 –
–
–
I
® ®
N
S
T
A
L
L
A
T
I
O
N