EFFECTS LOOP
Send and Return
The Effects Loop allows you to connect external effects with the VT Bass Rack. Connect
the input of your processor to Send; output of your processor to Return. Note: When
nothing is plugged into the Effects Loop, the signal passes through from the VT Bass
Rack to the Output jacks, with both the SansAmp 1/4” and XLR Outputs receiving the
same signal.
Mix 50/50 Switch
The 1/4" Send routes 100% of the VT Bass Rack’s signal through your effects processor
when the 50/50 switch is disengaged. If you engage the 50/50 switch, then 50% of the
VT Bass Rack signal goes through your effects processor, and the other 50% passes
directly to the SansAmp 1/4" and XLR Outputs.
To preserve the signal integrity of the VT Bass Rack, use the Effects Loop with the Mix
50/50 switch engaged. When the VT Bass Rack is in this mode, the effects processor’s
mix control should be set at 100% wet. Your relative wet/dry mixture can then be con-
trolled by increasing or decreasing the effects processor’s output level.
UNIVERSAL OUTPUT SECTION
The output sections of the VT Bass Rack are designed to be compatible with any appli-
cation. The outputs can be used for full range (multi-track recorders, studio monitors,
P.A. systems) or limited range systems, as well as
simultaneously
. Note: You can com-
pensate for different frequency responses of speaker enclosures by using the Treble
control.
1/4” SansAmp Output
Carries the signal from the VT Bass Rack, including any effects that are placed in the
Effects Loop.
1/4” Uneffected Output
Buffered output without processing. Sends a direct bass signal to another channel on
your amp, pre-amp, or effects chain, or it can be utilized as a tuner output.
SansAmp XLR Direct Output
Carries the signal from the VT Bass Rack, including any effects placed in the Effects
Loop. For recording, the SansAmp XLR Output is like having a built-in direct box.
Designed without a transformer, it provides a balanced, low-impedance output of
extremely high quality for recording or interfacing with professional-quality signal
processors. Go direct to the board and get the same sound you hear coming out of the
speakers right onto tape or disc. The SansAmp circuitry not only captures the warm,
rich, natural harmonics and sweet overdrive characteristics inherent to tube amplifiers,
its speaker emulation encompasses all aspects of multiply-miked tube amp rigs.
For live gigs, you can use this output direct into the P.A. system and you won’t need a
microphone in front of your amp. And you won’t have to subject the audience to a
sterile, muddy, or boomy bass tone.
NOTE: If you experience hum
from the output when there’s no
instrument plugged in, you most
likely have a ground loop.
Therefore, Pin 1 (signal ground
of the SansAmp XLR) needs to
be lifted or disconnected. You
can easily make a small ground
disconnect adapter by disas-
sembling one end of the cable
and cutting Pin 1 (the shield
connection) as shown to the
right.
XLR Output Level Switch
Sets the range of the signal level of the SansAmp XLR Output jack. In the 0dB position
(engaged), the Output is in the line level range. When in the -20dB position (disengaged),
the Output is in the instrument level range. Note: The standard output level range of the
VT Bass Rack is 0dB due to the popularity of digital recorders, which are unforgiving to
excessive input levels. This prevents overloading the input of a digital recorder.
Uneffected XLR Output
Provides a buffered balanced output of the direct bass signal without processing.
Footswitch
Any alternating (on/off) footswitch will activate the unit. Connect the footswitch output
to Footswitch In.
87
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