8
OPERATION – FRONT PANEL
12 – USB IN
Connection for computer for TonePrint upload and software
updates.
13 – TUNE MUTE Button and LED
To tune silently, press the MUTE button. The red LED indicates
that the mute function is active. The MUTE button not only
mutes the speaker and headphones outputs, but also the
balanced output. This way you can tune up with no sound going
to your own rig or to the PA.
14 – AUX IN (REHEARSE)
The AUX IN is a stereo auxiliary input. Any signal present on
the AUX IN phone jacks is played back through the PHONES
output. This allows you to play along with a rehearsal track
when checking out new stuff or when practicing to the beat of a
metronome click.
The included “mini jack to mini jack” cable allows you to use an
iPod®, iPhone® or any other consumer playback device as a
source for rehearsing.
15 – PHONES (MUTING)
This is a 1/8” connector for headphones. With a mild speaker
filter applied to the bass sound, our studio quality headphone
amp caters for a great headphone sound.
The headphone output also plays back any signal connected
to the AUX IN (“Rehearsal Input”) input jack found on the front
panel of the BG250 Combo. This feature allows you to play
along with e.g. an MP3 player (e.g. an iPod®), a signal from a
computer sound-card or any other audio source playing background
tracks – this is excellent for rehearsing or checking out new tracks
without disturbing the neighbors.
The headphone volume is controlled by the MASTER level knob.
When a set of headphones is connected to the PHONES jack, the
BG250 Combo’s speaker is disabled. This is a very convenient
feature when you need a “silent mode”, e.g. at night.
16 – BALANCED OUT
Use the BALANCED OUT XLR to connect the BG250 Combo to the
PA when you play on stage, or to connect your amp to a recording
device when you are in the studio.
To determine where in the signal chain the signal for the balanced
output should be tapped, use the PRE/POST switch located right
beside the BALANCED OUT jack.
The BG250 Combo’s MUTE button mutes the Balanced
output (as well as the internal speaker and headphones
outputs). This means that you can tune up with no sound in
your own rig or in the PA – provided, of course, that you use
the BG250 Combo’s balanced output to feed the PA instead
of running your bass through conventional line-driver.
17 – PRE/POST SWITCH
This switch determines whether the balanced line-driver output
provides the pre- or post-processed signal.
