Advertisement
10
11
12
The Rear Panel:
20. AC LINE CORD (not shown): The
grounded power cord should only be
plugged into a grounded power outlet
that meets all applicable electrical
codes and is compatible with the volt-
age, power, and frequency require-
ments stated on the rear panel. Do not
attempt to defeat the safety ground
connection.
21. PREAMP OUT: Use this jack to
send a line level signal to an external
amplifier, mixing board, recording con-
sole, or external effects device.
22. POWER AMP IN: Use this jack to
connect a line level signal from an exter-
nal preamp or external effects device
into the power amp. The internal pre-
amp is deactivated when this jack is
used.
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 shield-
ed signal cable. Connect the other end of this cable to the output jack of the external processor.
25. EXTERNAL SPEAKERS: Use these parallel 1/4" jacks to connect the amplifier to your speaker cabinet(s). The mini-
mum acceptable impedance for your speaker cabinet(s) is four ohms.
26. BALANCED LINE OUT: Use this XLR jack to send a balanced line level signal to an external power amplifier, mixing
board, or recording console.
27. FOOTSWITCH: Connect a two-button footswitch (such as the Crate CFS-2) here for remote control of the channel
selection/"blend" (see #8) and octave on/off. (When the Channel Switch [#8] 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.)
28. GROUND LIFT: This switch, when depressed, lifts the ground connection at the Balanced Line Out jack (#26). This may
help reduce hum in the Balanced Line Out signal if necessary.
29. 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).
30. VOLUME: Use this control to adjust the signal level at the Balanced Line Out jack (#26).
BT220H
Bass Amplifier
13
14
21
22
EFFECTS LOOP
23
24
SEND
15
16
17
PREAMP
POWER AMP
OUT
IN
RETURN
25
26
18
19
BALANCED LINE OUT
PRE
POST
GND
GND LIFT
VOLUME
CHANNEL /
OCTAVE
FOOTSWITCH
27 28
29 30
5
Hide quick links:
Advertisement
