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Bandpassing the Midrange
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• The Fanatic Component Systems are optimized for full range music reproduc-
tion. In cases where a subwoofer is used, the midrange can be bandpassed in
order to prevent overlapping frequencies from the midrange into the subwoofer.
1.Determine the frequency range that the subwoofer will play (i.e.: 20Hz-80Hz)
2.Use the low-pass crossover frequency of the subwoofer system (i.e.: 80Hz) as
the high-pass crossover frequency for the midrange
3.Select the appropriate capacitor value (i.e.: 500
µ
F) to properly bandpass the
midrange
4.Place the capacitor in series with the “+” terminal of the speaker
Frequency
Speaker
(Hertz)
(4 ohms)
C1
80Hz
500
µ
F
100Hz
400
µ
F
130Hz
300
µ
F
200Hz
200
µ
F
260Hz
150
µ
F
400Hz
100
µ
F
+
TWEETER
INPUT
-
MIDRANGE
+
-
+
-
+
–
0dB
–3dB
80Hz
Subwoofer
Midrange
Tweeter
C1
6dB/octave HP
