Bowers & Wilkins CT SW10, Инструкция по установке и настройке, Страница: 10 / 115

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negative cable to the terminal marked -1. Terminals
+2 and -2 are to be used when two subwoofers are
connected. Incorrect connection can result in poor
imaging and loss of bass. Once the plug is
reassembled it can be inserted into the socket and
locked by twisting clockwise. Figure 4 illustrates the
use of the Speakon plug to connect one or two
subwoofers.
Connect the signal input to the subwoofer amplifier
using either the RCA phono or XLR options. If a
mono signal is being used, for example from a
subwoofer pre-output, you will need to connect the
cable to the left input. A second subwoofer amplifier
can be daisy-chained from the first by connecting to
either the RCA phono or XLR output sockets.
Subwoofer Amplifier Setup and Control
Before Auditioning
Before auditioning your new subwoofer installation
and fine-tuning it, double check the connections.
Make sure in particular that the phasing is correct.
The positive terminals on the subwoofer (
and coloured red) should be connected to the
positive output terminals on the amplifier and the
negative terminals on the subwoofer (marked – and
coloured black) connected to the negative output
terminals on the amplifier. Incorrect connection can
result a confused sound with poor bass.
Switching On and Off
The subwoofer amplifier is best switched on after
any other item and switched off first. The
On/Auto/Standby and Status Indicator operate as
follows:
On: With the switch set to “On”, the subwoofer
amplifier will remain fully active and the indicator will
glow green.
Auto: With the switch set to “Auto”, the subwoofer
amplifier will initially become fully active and the
indicator will glow green. After about 5 minutes
without an input signal, the subwoofer amplifier will
automatically enter “sleep” mode. The indicator will
glow red. When an input signal is detected, the
subwoofer amplifier will automatically become active
and the indicator will glow green. The subwoofer
amplifier will return to sleep after about 5 minutes
with no input signal.
Audio-visual processors incorporating an
“automatic” set up procedure may be “confused” by
a subwoofer amplifier with an auto switch-on/sleep
function. A potentially damaging fault condition can
arise. The subwoofer amplifier is best left switched
on and fully active during set up if such a processor
is used.
Standby: With the switch set to “Standby” the
subwoofer amplifier will become active when it
receives an appropriate trigger signal via its 12V
Trigger Input. Turning off the 12V signal will return
the subwoofer amplifier to sleep. The indicator will
glow green when the subwoofer amplifier is active
and red when the subwoofer amplifier is in sleep.
Movie/Music EQ: Provides equalisation options for
music or movie programme material.
On/Auto/Standby: Provides switch-on and standby
options.
Status Indicator: Illuminates to indicate the amplifier
is switched on.
Fault Indicator: Illuminates to indicate a fault
condition.
Connecting the Subwoofer
All connections should be made with the equipment
switched off.
The CT SW10, 12 and 15 have a pair binding post
connection terminals and one Neutrik Speakon
connection socket on their rear panels. The binding
post terminals provide quick and easy connection of
stripped wires while Speakon sockets provide a
more secure and reliable connection method.
If the binding post terminals are to be used, connect
the positive cable to the red terminal and the
negative cable to the black terminal. Incorrect
connection can result in poor imaging and loss of
bass. Figure 1 illustrates use of the binding post
terminals.
If the Speakon option is to be used, disassemble
the Speakon plug as shown in Figure 2. Connect
the positive cable to the terminal 1 and the
negative cable to the terminal marked -1. Incorrect
connection can result in poor imaging and loss of
bass. Once the plug is reassembled it can be
inserted into the socket and locked by twisting
clockwise.
Ask your dealer for advice when selecting speaker
cable. Keep its total impedance below the maximum
recommended in the speaker specification and use
a low inductance cable.
Connecting the Subwoofer Amplifier
All connections should be made with the equipment
switched off.
The SA1000 amplifier has two pairs of binding post
connection terminals and one four-pole Neutrik
Speakon connection socket on its rear panel. The
binding post terminals provide quick and easy
connection of stripped wires while Speakon sockets
provide a more secure and reliable connection
method. Two identical subwoofers can be
connected to the amplifier through use of either the
two pairs of binding posts or the supplied four-pole
Speakon plug.
If the binding post terminals are to be used, connect
the positive cable or cables to the red terminals and
the negative cable or cables to the black terminals.
Incorrect connection can result in poor imaging and
loss of bass. Figure 3 illustrates the use of the
binding post terminals to connect one or two
subwoofers.
If the Speakon option is to be used, disassemble
the Speakon plug as shown in Figure 2 connect the
positive cable to the terminal 1 and the
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