KXB25 Keyboard
Amplifier
User’s Guide
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KXB25 Keyboard Amplifier
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1. INPUT 1: Use this jack to connect a high
or low impedance microphone to the
amplifier by means of a shielded instru-
ment cable. The signal level at this jack is
controlled by the Level 1 knob (#2).
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.
2. LEVEL 1: Use this control to adjust the
level of the signal connected to the Input 1
jack (#1).
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.
3. INPUT 2: Use this 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).
4. LEVEL 2: Use this control to adjust the
level of the signal connected to the Input 2
jack (#3).
10.
(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.
5. LOW: Use this control to adjust the bass
response of the amplifier. Rotating the con-
trol counterclockwise reduces the low fre-
quency output. Rotating the control clock-
wise increases the low frequency output. It
may be necessary to reduce the Low fre-
quency output at higher volume levels.
CAUTION: To avoid possible damage to
your hearing, do not use headphones for
extended periods of time at extremely
loud levels.
11. ON: This LED illuminates when the
amplifier is turned on.
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.
12. POWER: Use this switch to turn the
amplifier on (top of the switch depressed)
and off (bottom of the switch depressed).
13. 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 requirements stated
on the rear panel. Do not attempt to
defeat the safety ground connection.
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.
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KXB25 Keyboard Amplifier
KXB25 TECHNICAL SPECIFICATIONS:
Output Power Rating
Input Impedance
Gain
25W RMS @ 2% THD, 4 ohms
20k ohm
Input 1 Hi-Z 44dB, Lo-Z 59dB
Input 2 44dB
Equalization
Low 31dB range @ 50Hz
Lo Mid 13dB range @ 150Hz
Hi Mid 15dB range @ 1kHz
High 30dB range @ 10kHz
Speakers
Woofer Crate Custom 10”, 4 ohm, 30 watt, 1.5” voice coil
Tweeter 2” Piezo
Input Power Requirements
120 VAC, 60Hz, 45VA
100/110 VAC, 50/60Hz, 45VA
230 VAC, 50/60Hz, 45VA
Cabinet Size and Weight
15-3/4” H x 16” W x 15-1/4” D, 27 lbs.
Declaration of Conformity
Manufacturer’s Name: SLM Electronics
Corporate Headquarters: 1901 Congressional Drive, St. Louis, Missouri 63146
Primary Production Facility: 700 Hwy 202 W, Yellville, Arkansas, 72687
Product Type: Audio Amplifier
Products meet the regulations for compliance marking under:
ETL standards UL6500, UL60065, or UL813
CSA standards E60065 or C22.2 No.1-M90
CE safety standard EN60065
CE EMC standards EN55103 or EN55013 and EN61000
FCC standards 47CFR 15.107 and 15.109 Class A
C-tick designation Level 2, ABN #56748810738, ARBN# N222
KETI standard K60065 (limited model approval)
Compliance Support Contact: SLM Electronics, Attn: R&D Compliance Engineer
1901 Congressional Drive, St Louis, Missouri, 63146 • Tel.: 314-569-0141, Fax: 314-569-0175
©2004 SLM ELECTRONICS, A DIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. U.S.A. 63133
P/N 47-377-01 • 122904
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