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1. INPUT 1: Use this 1/4” jack to connect
your keyboard or other line level signal to
the amplifier by means of a shielded instru-
ment cable. The signal level at this jack is
controlled by the Level 1 knob (#3).
2. INPUT 2: Use this 1/4” jack to connect
your keyboard or other line level signal to
the amplifier by means of a shielded instru-
ment cable. The signal level at this jack is
controlled by the Level 2 knob (#4).
3. LEVEL 1: Use this control to adjust the
level of the signal connected to the Input 1
jack (#1).
4. LEVEL 2: Use this control to adjust the
level of the signal connected to the Input 2
jack (#2).
5. LOW: Use this control to adjust the bass
response of the amplifier. Rotating the
control counterclockwise reduces the low
frequency output. Rotating the control
clockwise increases the low frequency out-
put. It may be necessary to reduce the Low
frequency output at higher volume levels.
6. LO MID: Use this control to adjust the
“thickness” or “fatness” of the amplifier.
Rotating the control counterclockwise
reduces the lower midrange frequency out-
put. Rotating the control clockwise increas-
es the lower midrange frequency output.
7. HI MID: Use this control to adjust the
clarity and definition of the amplifier.
Rotating the control counterclockwise
reduces the upper midrange frequency out-
put. Rotating the control clockwise increas-
es the upper midrange frequency output.
8. HIGH: Use this control to adjust the high
frequency response of the amplifier.
Rotating the control counterclockwise
reduces the high frequency output.
Rotating the control clockwise increases
the high frequency output.
9. CD INPUT: Use these RCA jacks to con-
nect the output from a CD player or tape
deck to the amplifier. The signal at these
jacks is combined into a mono signal which
is sent to the internal power amp circuit.
Use the CD or tape player’s output level
control to adjust the signal for the proper
mix with your instrument.
10. (EXTERNAL SPEAKER): Use this
jack to connect the amplifier to an external
speaker. The internal speaker is discon-
nected when this jack is used. The imped-
ance of the external speaker must be 4
ohms or greater.
WARNING: Do not attempt to use head-
phones in the Speaker jack! Permanent
hearing damage could result!
11. (HEADPHONES): Use this jack to
connect headphones to the amplifier. The
internal speaker is disconnected when this
jack is used. A line level signal can also be
obtained from this jack for recording, etc.
CAUTION: To avoid possible damage to
your hearing, do not use headphones for
extended periods of time at extremely
loud levels.
12. ON: This LED illuminates when the
amplifier is turned on.
13. POWER: Use this switch to turn the
amplifier on (top of the switch depressed)
and off (bottom of the switch depressed).
14. POWER CORD (rear panel, 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 voltage,
power, and frequency requiremnts stated
on the rear panel. Do not attempt to
defeat the safety ground connection.
KXB15 Keyboard Amplifier