Laboga The Beast 30W Plus - head User Manual - page 9
LABOGA – The Beast 30 Plus
alternative preamplifier, including a
simple stomp box.
6. Power output socket for a 4 ohm
impedance cabinet
7. Power output socket for an 8 ohm
impedance cabinet
8. Power output socket for a 16 ohm
impedance cabinet
Every tube amplifier needs to work with
a load, so it's not allowed to play
without speaker or any dummy load
connected – read about Speakerswitch
below.
ATTENTION!
There must be always
some load connected to the amplifier
- a speaker or internal dummy load.
Before turning the amplifier on, make
sure the cabinet is connected to the
appropriate power output socket, or
the Speaker switch is at “OFF”.
ATTENTION!
Do not connect the
cabinets with different impedance at
the same time.
9. Phones socket
The output 6,3” jack socket, with
second generation speaker simulation
for connecting headphones. It allows to
play silent without speaker connected.
The signal at Phones is taken from the
speaker output, after power tubes and
the output transformer. Therefore it
consist all good, that tube power
amplifier have. The signal is then
modified in the guitar speaker
emulator, to reach the similar tone to a
guitar cabinet.
Phones output is always active. This
allows to play at home silent, using just
headphones, but it's necessary to turn
the Speaker switch to “OFF”, to apply
the internal dummy load, even if no
speaker is connected. It also allows to
use monitoring headphones, when the
speaker is connected and the Speaker
switch at “ON”.
Headphones volume is controlled by
Master Volume knob at the front panel.
Note: the simulation tone character
might sound different on various
headphones due to their different
frequency response.
HINT: To get the best tone, use high
impedance professional headphones.
ATTENTION!
To play silent using
just headphones, always turn the
Speaker switch to “OFF”.
10. Balanced line output XLR socket
Balanced line output with built-in Di-
Box, with separating transformer, which
reduces buzz and hum from ground
loops, while connecting to mixing
consoles and home recording systems
or other devices.
Although it's separated from the
Phones output, it also takes signal from
power tubes, after the output
transformer and then the signal is
modified in the same guitar speaker
emulation, as the Phones output.
The output is always active, no matter
if the Speaker switch is at “ON” or
“OFF”.
11. Speaker switch
Switch connects or disconnects speaker
outputs.
Position ON: If the switch is at “On”,
then the signal goes to speaker output
sockets and the internal speaker works
(if connected), or any other cabinet
connected instead. Note: Use only one
output at the same time.
Position OFF: When the switch is at
“OFF”, the signal goes to the built-in
dummy load, so the tubes work
properly – as they were connected to
the speaker. Then, no sound comes
from any speaker connected.
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