Behringer BXL1800A - Manual (Page 5)

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ULTRABASS BXL450A/BXL900A/BXL1800A/BXL3000A
2. CONTROL ELEMENTS AND CONNECTIONS
2. CONTROL ELEMENTS
AND CONNECTIONS
Fig. 2.1: The input section
INPUT. Connect your bass guitar to this input jack on the
ULTRABASS (¼" TS jack).
The GAIN 1 control determines the input gain on channel 1.
Use the CH 2 button to switch over between the two
channels. The CH 2 button lights up when channel 2 has
been activated. On the models BXL1800, BXL3000,
BXL1800A and BXL3000A, the channels can also be
selected using the foot switch shipped with the unit.
The GAIN 2 control sets the degree of distortion of
channel 2. The further the control is turned clockwise,
the higher the degree of distortion.
SHAPE is a special filter for your personal sound design. It
gives you numerous options for shaping your bass sound.
Application examples of the shape function can be found
in chapter 3.2.2.
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The Shape filter is only effective on channel 2. The
signal in channel 1 remains unprocessed.
Use the LEVEL control to adjust the volume of channel 2.
Use this control to achieve the balance in volume that you
want between channels 1 and 2.
Fig. 2.2: The FBQ EQUALIZER
The FBQ EQUALIZER has 7 slide controls (BXL450 and
BXL450A: 5 slide controls), one for each frequency band.
The maximum boost/cut is 12 dB.
The FBQ switch activates the FBQ spectrum analyzer.
The control LEDs, which are identical in brightness when
FBQ is off, now show the energy content of each
frequency band by lighting up with varying degrees of
brightness. The equalizer function is always active,
irrespective of the FBQ function. (For details on the FBQ
function see chapter 3.2.1.)
Fig. 2.3: The master section
Use the MASTER control to set the overall volume.
The PHONES jack (¼" TRS jack) is for connecting a pair of
headphones. You can use headphones from the
BEHRINGER HP Series. This connector, when in use, mutes
the built-in bass speaker.
The POWER switch powers up your ULTRABASS. The
POWER switch should always be in the “Off” position before
you connect the ULTRABASS to the main power source.
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Please note: The POWER switch does not fully
disconnect the unit from the mains power cord
plug or extention cord. To disconnect the unit from
the main power source, pull out the main cord plug
or appliance coupler. When installing the product,
ensure the plug or appliance coupler is readily
operable. Unplug the power cord when the unit is
not used for prolonged periods of time.
Fig. 2.4: The rear-panel connectors
(BXL1800, BXL3000, BXL1800A and BXL3000A)
Use the balanced DI OUT(PUT) (XLR) to route the audio
signal from the ULTRABASS to the input on a mixing
console. The signal is taken from the point between the
equalizer and the MASTER control.
As an alternative to taking the signal from output
, the
LINE OUT signal (¼" TS jack) can also be used.
+ FX INSERT (not available on BXL450 and BXL900
or on BXL450A and BXL900A): The ULTRABASS features
a serial insert path, which allows you to connect external
effects devices (e. g. wah-wah pedal, floor effects or
19" effects processors). Connect the SEND jack to
the input on the effects device. Connect the output on the
effects device to the RETURN jack on the ULTRABASS.
In the signal path of the amplifier, the FX insertion point
occurs before the Ultrabass processor ( ).
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The INSERT SEND can also be used as a parallel
output, for example, to connect a tuner. As long as
the RETURN jack is not in use, there will be no break
in the internal signal path.
SERIAL NUMBER.
The CD IN input (RCA) allows you to connect an external
stereo signal. For instance, you can play along with your
favorite songs played back from CD or MD, or with a drum
computer.
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The models BXL450, BXL900, BXL450A and BXL900A
have the CD IN connector installed on the front panel.