20– 3-way system using dual voice coil woofers – Rockford Fosgate 250 User Manual
Page 25
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– 20–
3-Way System
Using dual voice coil woofers
Front
Rear
Crossover
Tweeter
Midrange
Crossover
Tweeter
Midrange
+
+
+
–
–
–
+
–
–
+
–
+
–
+
+ –
+ –
–
–
+
–
+
+ –
+ –
–
+
–
+
+
4
Ω
x 2
4
Ω
x 2
4
Ω
x 2
4
Ω
x 2
4
Ω
x 2
4
Ω
x 2
Power 150a1 or
Power 200a1
Mono Amplifier
Sub
Crossover
Tweeter
Midrange
Crossover
Tweeter
Midrange
BAND
DISP
AS/PS
LOUD
MODE
MUTE
TUNE
1
2
3
4
5
6
SEL
VOL
COMPACT DISC PLAYER WITH DIGITAL TUNER
RPT
TRACK
SCAN
RDM
DISC
PUSH
SEEK
MENU
ST
RPT
RDM
LOUD
LOCAL
CD CHANGER CONTROL
Example of 3 popular woofer configurations
• (1) 4
Ω
x2 woofers wired in parallel
• (2) 8
Ω
x2 woofers wired in series/parallel
• (3) 4
Ω
x2 woofers wired in series/parallel
NOTE: Use only one woofer configuration at a time
to prevent unstable amplifier operation
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