6
TRUTH B2092A
3. APPLICATIONS
Fig. 2.2: The B2092A connector panel
3. APPLICATIONS
3.1 Connection
Using the mains cable included in the delivery, connect the B2092A
to the mains. To avoid hum noise, your loudspeakers and your
mixing console should all be connected to the same AC circuit.
Connect your loudspeaker system to the Monitor/Control Room
outputs of your mixing console. This way, you can adjust the
listening volume independently from your mixing consoles main
mix signal. The B2092A is an active loudspeaker. Therefore, you
will require no speaker cables. Instead, you will need to use
standard, commercially available two-core shielded XLR
microphone cables.
+Be sure to mute the signal sources before you
power the B2092A on.
There are different ways to integrate your B2092A into a
loudspeaker system. Some examples are shown here:
3.1.1 Stereo setup with subwoofer
Fig. 3.1: Use in a stereo system
LEFT IN and RIGHT IN. These are the balanced inputs on
your B2092A. They are laid out as XLR connectors. Connect
them to the outputs on your mixing console or with your
preamplifier (see ch. 3.1).
LEFT OUT and RIGHT OUT. These outputs carry the
signals for the main left and right loudspeakers. The signal
is tapped into post-crossover, i.e. without the bass segment
used for the subwoofer. Connect your active main
speakers here (with passive speakers, connect the power
amplifier inputs).
CENTER IN. Connect the center output of your surround
decoder or amplifier to this connector.
CENTER OUT. This output carries the signal for the central
loudspeaker of a surround system. If the SUB input is being
used, CENTER OUT also carries segments of the SUB signal
with frequencies higher than 80 Hz.
Connect the subwoofer or the LFE output of your surround
decoder/amplifier to SUB IN. Frequencies above 80 Hz are
reproduced on the CENTER output, while the B2092A
reproduces the frequencies under 80 Hz.
REMOTE CONTROL. The B2092A can be deactivated
using a footswitch. This way, you can perform an A/B
comparison with and without the subwoofer. If the B2092A
is deactivated, the crossover is also bypassed, so that the
main speaker now reproduce the entire frequency range.
Use the POWER switch to power up your B2092A. The
POWER switch should always be in the Off position when
you are about to connect the unit to the mains.
+Please note: The POWER switch does not fully
disconnect the unit from the mains. To disconnect
the unit from the mains, pull out the main cord plug
or appliance coupler. When installing the product,
make sure the plug or appliance coupler is readily
operable. Unplug the power cord when the unit is
not used for prolonged periods of time.
+Your B2092A and the corresponding loudspeaker
system should always be the last ones to be turned
on and the first ones to be turned off. This way, you
avoid speaker damage caused by loud crackling
noises during turning other equipment in your
studio on or off.
The mains connection is achieved via the standard IEC
connector. A matching power cord is included.
FUSE COMPARTMENT/VOLTAGE SELECTION: Before
plugging the unit into a power socket, please make sure
you have selected the correct voltage. Faulty fuses must
be replaced with fuses of appropriate rating without
exception. Some units feature a fuse compartment that
can be operated in two different positions, allowing
alternating between 230 V and 120 V. Attention: when
using the unit outside of Europe (running on 120 V), you
have to install a fuse with a higher rating.