BT100
Bass Amplifier
5
18. POWER: Use this switch to turn the amplifier on and off. The adjacent LED illuminates when the amplifier is
turned on.
19. ELECTRONIC TUNER (top panel, not shown): This active electronic tuner is on whenever the amplifier is
turned on, allowing you constant, “real-time” tuning. The tuner is fully chromatic – use the flat and sharp indica-
tors until the LED between them illuminates, indicating proper tuning.
The Rear Panel:
20. AC LINE CORD (not shown): The grounded power cord should only be plugged into a grounded power out-
let that meets all applicable electrical codes and is compatible with the voltage, power, and frequency require-
ments stated on the rear panel. Do not attempt to defeat the safety ground connection.
21. EXTERNAL SPEAKER: Use this jack to connect the amplifier to an external speaker cabinet. This jack is
wired in series with the internal speaker, which remains active when this jack is used. A 4 ohm external speaker
cabinet is recommended.
22. FOOTSWITCH: Connect a two-button footswitch (such as the Crate CFS-2) here for remote control of the
channel selection/“blend” (see #7) and octave on/off. (When the Channel Switch [#7] is depressed, the footswitch
switches between the Clean channel and the Distortion channel; when the switch is in the out position, the Clean
channel is always active, and the footswitch turns the Distortion channel on and off, allowing you a blend of both
channels.)
23. EFFECTS LOOP SEND: Use this jack to connect an external signal processor to the amplifier by means of a
shielded signal cable. Connect the other end of this cable to the input jack of the external processor.
24. EFFECTS LOOP RETURN: Use this jack to connect an external signal processor to the amplifier by means
of a shielded signal cable. Connect the other end of this cable to the output jack of the external processor.
25. BALANCED LINE OUT: Use this XLR jack to send a balanced line level signal to an external power amplifi-
er, mixing board, or recording console.
26. PRE/POST: Use this switch to determine whether the Balanced Line Out signal is Post-EQ (switch depressed)
or Pre-EQ (switch in the out position).
27. GROUND LIFT: This switch, when depressed, lifts the ground connection at the Balanced Line Out jack (#25).
This may help reduce hum in the Balanced Line Out signal.
28. VOLUME: Use this control to adjust the signal level at the Balanced Line Out jack (#25).
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