B-AMP Bergantino Owner's Manual - page 7
6
If you’re not using a currently offered model, you can download the Profile for many of our
older, discontinued Bergantino cabinets as well as some Bergantino cabinet combinations from
our website (
www.bergantino.com
) onto a FAT32 formatted thumb drive, and load it into one of
the 12 dedicated Profile memory slots via the USB port (see Profile Select menu below).
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The currently selected Profile will be loaded into the DSP profile filters
upon each recycling of power until a new one is selected.
6. Input level and Master Volume settings:
For proper operation, it is very important to adjust all gain levels properly. To adjust the Input
gain level, first turn the Master volume and Input Gain of the B
|
AMP all the way down (CCW).
Next, put the volume controls on your instrument at the maximum level you will be using them
at and play your bass like you normally would, including hard dynamic attacks. Gradually
increase the Input Gain control (clockwise) until the OL (overload) indicator just begins to flash.
Once flashing, reduce the Input Gain (CCW) by 1/8 of a turn for some additional headroom
before clipping.
If the OL led doesn’t come on at all with the Input gain turned all the way up, chances are
you’re either using a more traditional, single coil, low output bass, or you enjoy playing with a
lighter touch. That’s ok and perfectly normal. If this is the case, keep the input gain turned all
the way up for best S/N ratio and select Lo Output for Instrument Level in the Extended
Amplifier’s Feature section under Program Mode to compensate for overall gain.
Important!: If using an active bass and the Input gain level of the B
|
AMP is near or below 9:00
in order to keep the OL led from flashing, it is highly recommended you turn down the volume
on your bass, or preferably if equipped, turn the gain down on your onboard preamp. This is
very important as to not overdrive the input of the B
|
AMP. Some onboard preamps have
internal adjustable gain controls. If you have active/passive switching capabilities on your bass,
it is best to adjust the active gain such that it matches the passive gain with all tone controls
set flat. In other words, you want to adjust your onboard preamp to have unity gain. This will
ensure maximum headroom for you onboard preamp as well as best gain matching of your
bass to the B
|
AMP’s input stage.
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Remember, the purpose of an onboard preamp is to buffer the pickups from long cable
runs and to provide active tone controls for tone shaping, notto increase your overall
output level and volume. That is what your amplifier is for!
Once you’ve matched the maximum signal from your bass without overloading the input stage
of the amplifier, increase the Master volume of the B
|
AMP by turning the Master volume knob
in a clockwise direction to the desired level. You should be hearing your bass quite well at this
point. You should now only use the Master volume now to achieve your desired sound level.
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For clear, undistorted sound, it’s very important not to overdrive the input stage of the
B
|
AMP. If you increase in level any tone or volume control on your bass after adjusting
the input gain, you should check to make sure the OL indicator isn’t flashing.