User Manual

en
Applications
6
When using a mono effects processor, route the =
effect signal only to RETURN CHANNEL A.
(29) SEND jack: To send an audio signal from the BTX to an
effects processor, use this ¼" TS jack.
INSERT CHANNEL section
(30) POWER AMP INPUT: This unbalanced connector is used to
feed a mono signal to the amplifi er A as well as one to the
amplifi er B. This separates the internal signal path from the
amplifi ers.
(31) PREAMP OUTPUT: This unbalanced connector is used to
tap the preamplifi er signal and feed it to an external ampli-
fi er.
When in BI-AMP mode, the low-frequency range =
of the signal is sent through the PREAMP A/LOW
OUTPUT, while the signal’s high-frequency range is
sent through PREAMP B/HIGH OUTPUT.
When in two-channel mode, connect the = PREAMP
A/LOW OUTPUT with the amplifi er’s right chan-
nel and the PREAMP B/HIGH OUTPUT with the left
channel.
LINE OUTPUT features
(32) STEREO/MONO: This switch adjusts the routing of the
LINE signal between “wet” (with effects) and “dry” (without
effects). The switch is only effective when PRE/POST has
been pressed (“POST”) (33)!
When in mono mode, LINE channel A has the =
“wet” signal with all the external effects and LINE
channel B has the “dry” signal with the internal
signal path.
When in stereo mode, both LINE outputs have the =
“wet” signal with all external stereo effects.
(33) PRE/POST button: To select the type of signal you want to
send to a mixer/recording unit, use this button.
When this button is:
pushed out (PRE EQ and effects), the BTX does not =
apply any preamp features (TONE/EQ/EFFECTS) to
the audio signal.
pushed in (POST EQ and effects), the BTX applies =
all preamp features to the audio signal.
(34) BAL: The internal signals of channels A
and B are routed to
this balanced XLR connector. The type of signal depends
on the settings of the controls (32) and (33).
(35) BAL/UNBAL: The internal signals of channels A and B are
routed to these unbalanced ¼" TS connectors. You can also
connect these outputs to any balanced line inputs. The type
of signal depends on the settings of the controls (32) and
(33).
(36) TUNER OUTPUT jack: To connect the BTX36000 to
an electronic tuner, use this ¼" TS jack. There is also a
TUNER OUTPUT connector {3} on the unit’s front panel.
Both TUNER OUTPUT connectors may also be used to
hook up a stage monitor: the input signal is routed before
the MUTE function so that the signal is always fed to the
monitor speaker. This also means that it is not affected by
sound and level settings.
(37) Connect the supplied footswitch to the FOOTSWITCH con-
nector. Switch 1 activates and deactivates the graphic EQ.
Switch 2 turns the Effects Loop on and off.
Applications
Modes of operation
Mono-bridged mode
This mode is most commonly used on your BUGERA amplifi er.
When running in mono-bridged mode, the voltage of both channels
is added up and fed into a single loudspeaker system. There is one
input and one output signal respectively, and only the controls of
channel A (and not of channel B) are used. Mono-bridged mode
is active when the button (21) glows.
Examples:
Driving a single 8-Ohm loudspeaker. =
Driving a single 4-Ohm loudspeaker. =
BTX36000
(Mono bridge mode)
Mono-bridged mode
When the amp is overdriven for longer peri-
$
ods of time, the output signal may occasion-
ally be muted for several seconds. In certain
situations, excessive overdriving may trigger
off the automated fuse. To avoid overdriving
the amp, please continually make sure that an
appropriate volume level is applied.
Caution
The minimum load in mono-bridged mode is 4
$
Ohms. 2-Ohm loads should never be applied
when in mono-bridged mode.
Safety precautions for mono-
bridged operation
Running your amp in mono-bridged mode can
$
quickly result in excessive overdriving and
premature shutting down of the unit itself.
In the worst-case scenario, your loudspeak-
ers may be damaged permanently. Therefore,
you should always make sure that the speak-
ers you use can indeed handle the power load
fed into them.
A voltage of up to 100 V RMS is present be-
$
tween the output connectors of the BUGERA.
Always implement appropriate safety precau-
tions when connecting your speakers to avoid
the risk of electric shock.
2-channel mode (stereo)
The 2-channel mode is a special feature of your BTX36000. Both
channels operate fully independently from one another. There is