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Step 2: Controls
(EN)
Front panel
POWER switch is used to turn the power of the Bugera
(1)
amplifier on and off.
STANDBY switch allows you to place the amp
(2)
in STANDBY mode (OFF position). This way the
amp is idle, but the operational temperature of
the valves is maintained (POWER switch turned
on). When the switch is set to its ON position the
amplifier is activated.
ATTENTION!
To avoid damage to your amp, never use the Bugera
valve amplifier without a loudspeaker connected!
PRESENCE control modifies the amp's damping factor
(3)
at high frequencies. This allows you to boost the
presence range, thus giving the sound more "edge".
TREBLE control adjusts the upper frequency range.
(4)
MID control adjusts the middle frequency range.
(5)
BASS control adjusts the lower frequency range.
(6)
VOLUME 1 control determines the volume of
(7)
Channel 1. Channel 1 sounds brighter than Channel 2
and is usually the main channel.
VOLUME 2 control controls the volume of Channel 2.
(8)
Channel 2 produces a linear sound with a less
pronounced treble range than Channel 1.
CASCADED instrument inputs allow you to run
(9)
Channel 2's output into Channel 1 in series for extra
preamp gain and saturation. Plugging a single ¼" jack
into the LOW input reduces the input gain by -6 dB.
Plugging into the HIGH and LOW jacks simultaneously
routes both inputs into the cascaded signal chain.
PARALLEL instrument inputs allow you to run
(10)
Channel 1 and Channel 2 simultaneously from a
single ¼" instrument cable plugged into the HIGH 1
jack. Plugging a single ¼" instrument cable into the
HIGH 2 jack allows you to run Channel 2 by itself and
deactivates the HIGH 1 input. Plugging into HIGH 1
and HIGH 2 simultaneously allows you to operate each
channel separately.
Rear panel
CAUTION!
Hot! Risk of injury! During use, the valves get very
hot and high surface temperatures may be reached
at the rear of this unit. Avoid touching the controls
and connectors on the rear panel during use. To avoid
accidental contact with hot surfaces, place the rear
panel so that it faces a wall.
INFINIUM VALVE LIFE MONITORING section shows
(11)
correct biasing for each valve separately. When
an output valve requires replacement, the valve's
matching LED will light permanently.
MASTER POST PHASE INVERTER volume control
(12)
adjusts the final output volume when engaged. This
control allows you to capture the full harmonics
generated in the phase inverter stage even at
moderate volumes.
BYPASS/ACTIVE switch activates or deactivates the
(13)
MASTER POST PHASE INVERTER volume control.
SEND output is used to connect a shielded ¼" mono
(14)
jack cable to the input of an external effects unit.
RETURN input is used to connect a shielded ¼" mono
(15)
jack cable to the output of an external effects unit.
Quick Start Guide
LEVEL switch optimally adapts the FX LOOP to
(16)
the operating level of the external effects device
connected (+4 dBV or -10 dBV). The higher level is for
studio effects devices, the lower level for floor pedals.
BYPASS switch removes the FX LOOP from the signal
(17)
path completely.
IMPEDANCE switch lets you specify the loudspeaker
(18)
impedance. Always apply the value that is identical to
the impedance of the used speaker cabinet. Please also
read "Wiring the Bugera".
LOUDSPEAKER parallel outputs (¼" mono
(19)
jacks) are used to connect the speaker cabinet(s).
The minimum impedance is 4 Ohms. The IMPEDANCE
switch should always be set to match the impedance
of the used speaker cabinet.
Always use loudspeaker cables for connection
between the amplifier and the loudspeaker.
Never use other types of cable such as instrument
cable and microphone cable.
WARNING: ONLY REPLACE THE FUSE WHEN THE MAINS
CABLE HAS BEEN DISCONNECTED! If the fuse is blown,
it needs to be replaced with a fuse of the same kind
by all means. Otherwise, the unit could seriously be
damaged, in which case the warranty is void. If the
fuse is blown repeatedly, you should take the unit to
a qualified service technician.
FUSE is found in the fuse holder.
(20)
IEC MAINS connector is used to connect the mains
(21)
cable that has the appropriate voltage ratings for your
country (included). At all times, make the connections
to the amplifier before plugging the cable into a
power outlet.
SERIAL NUMBER of the amplifier.
(22)
17
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