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Controls and connections
10.13 MONO LOW
switch
10.14 CD EQ switch
10.15 SELECT MODE
switch
20
The MONO LOW switch operates in all stereo modes of operation and
actively sums the signal information together on the LOW outputs. Both left
and right LOW outputs will then contain the summed LOW signal.
The CD EQ switch inserts constant directivity equalisation on all relevant
outputs, dependant on the mode selected. Refer to the table in section 11.1 for
more information.
The FDS-318 is designed to offer seven different modes of operation:
4-way:
Two channels of 4 non overlapping frequency modes.
4-way HF:
Two channels of 3 non overlapping frequency bands with
an extra high pass parallel band running at a different
selectable frequency. This allows a sound system to utilise
two different high frequency horn drivers which require a
different crossover frequency.
4-way LF:
Two channels of 3 non overlapping frequency bands
with an extra low pass parallel band running at a different
selectable frequency. This allows a 3-way sound system to
operate with an optional sub bass system.
3-way:
Two channels of 3 non overlapping frequency bands. The
unused upper control configured to operate as full range
output buffers.
2-way HI:
Four channels of 2 non overlapping frequency bands with
the frequency control configured to operate over a 2kHz to
20kHz sweep range.
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