Bass, Mid and Treble
These active tone controls cut or boost
±
12dB from unity gain at 12 o’clock. Bass is
80 Hz. Mid is 1kHz. Treble is 3.2kHz.
XLR
Adjusts the volume level of the SansAmp XLR Output to optimize your amp’s output
relative to the P.A. system.
Level
Adjusts the SansAmp 1/4” Output level.
REAR PANEL
Input 2 Jack
Plugging into Input 2 lets you match the SansAmp RBI’s input circuitry to the signal
level being fed into it, thereby assuring the best signal-to-noise ratio and least distor-
tion. This input is ideal for rack and patch-bay applications, especially if you use
other signal processors or multi-track recorders before the SansAmp RBI. Note:
Whenever you plug into the front panel’s Input, the rear panel Input 2 is disconnect-
ed. Also, you can set the Input level selector switch to its 0dB position when you
plug in extra-hot signals, such as the output from active bass guitars.
Level Selector Switch
This switch lets you connect the SansAmp RBI to a wide variety of equipment with a
variety of signal levels. It has two positions:
0dB position. This engages the input pad. Set the switch in this position when
sending a line-level signal into the SansAmp RBI. When the switch is in this position,
the signal coming into the unit is padded down by 20dB.
-20dB position. When the input pad switch is disengaged (at its -20dB setting),
the rear panel Input 2 is optimized to receive an instrument level signal. In this posi-
tion, Input 2’s sensitivity is exactly the same as the front panel’s Input.
EFFECTS LOOP
Send and Return
The Effects Loop allows you to connect external effects with the SansAmp RBI.
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 SansAmp RBI to the Output jacks, with both the SansAmp 1/4” and XLR Outputs
receiving the same signal.
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Mix 50/50 Switch
The 1/4" Send routes 100% of the SansAmp RBI’s signal through your effects proces-
sor when the 50/50 switch is disengaged. If you engage the 50/50 switch, then 50%
of the SansAmp RBI 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 SansAmp RBI, use the Effects Loop with the
Mix 50/50 switch engaged. When the SansAmp RBI is in this mode, the effects
processor’s mix control should be set at 100% wet. Your relative wet/dry mixture can
then be controlled by increasing or decreasing the effects processor’s output level.
UNIVERSAL OUTPUT SECTION
The output sections of the SansAmp RBI are designed to be compatible with any
application. The outputs can be used for full range (multi-track recorders, studio mon-
itors, P.A. systems) or limited range systems (bass speaker cabinets), as well as
simultaneously
. Note: You can compensate for different frequency responses of
speaker enclosures by using the Treble control.
1/4” SansAmp Output
Carries the signal from the SansAmp RBI, 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.
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