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In case of center woofer
CR 2-step frequency characteristic of dividing circuit
Response
(dB)
30
50 70100
200 306 500700 1K
Frequency (Hz)
2K 3K
5K 7K10K
20K
o Block diagram for center woofer system
Dividing
circuit
Main amplifier
©-
Connecting jack
for preamplifier
and main amplifier
Preamplifier
Phase inversion circuit
as shown below.
Center speaker for
low frequencies
Speaker for intermediate
Speaker for intermediate
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