KXB25 Keyboard
Amplifier
User’s Guide
Congratulations!
You are now the proud owner of the Crate KXB25 keyboard amplifier. This compact powerhouse
offers warm clean tones and easy-to-use equalization. Each of the two input jacks has its own level
control so you can mix your keyboard with another instrument or a Hi-Z vocal mic. The CD input also
allows you to play along with your favorite music. The Headphone jack allows for private practicing.
Like all Crate products, your KXB25 is designed by musicians, and built using only the best components. Extensive testing at the hands (and ears) of skilled technicians and musicians insures you
that this amplifier is the absolute best it can be.
In order to get the most out of your new amplifier, we strongly urge you to go over the information
contained in this manual before you begin playing.
And thank you
for choosing
KXB25 Keyboard Amplifier
R
System Block Diagram:
IMPORTANT SAFETY INSTRUCTIONS
• READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.
• DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS. FOR PROPER OPERATION,
THIS UNIT REQUIRES 3” (75mm) OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR FLOW PROVISIONS IN THE CABINET.
• DO NOT USE THIS APPARATUS NEAR SPLASHING, FALLING, SPRAYING, OR STANDING LIQUIDS.
• CLEAN ONLY WITH LINT-FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS.
• ONLY CONNECT POWER CORD TO A POLARIZED, SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND COMPATIBLE WITH
VOLTAGE, POWER, AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS.
• PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON, PINCHED, OR STRAINED.
• UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.
• ONLY USE ATTACHMENTS, ACCESSORIES, STANDS, OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE OPERA-
TION AND TO AVOID INJURY.
• WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
• SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL.
• OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS
CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS. USER CAUTION IS ADVISED AND EAR PROTECTION IS RECOMMENDED IF UNIT IS
OPERATED AT HIGH VOLUME.
• WARNING: THIS UNIT REQUIRES A SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRIC CODES HAVING THE LINE SUPPLY VOLTAGE,
POWER, AND FREQUENCY IDENTIFIED ON THE REAR OF THE UNIT. THE OUTLET MUST REMAIN ACCESSIBLE TO DISCONNECT THE UNIT IF A
FAULT SHOULD ARISE WHILE IN USE. THIS UNIT SHOULD BE UNPLUGGED WHEN NOT IN USE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
“ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.”
"REFERREZ-VOUS AU MANUAL D'UTILISATION"
EXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATION DES SYMBÔLES GRAPHIQUES:
"DANGEROUS VOLTAGE"
“VOLTAJE PELIGROSO”
"DANGER HAUTE TENSION"
=
=
PRECAUCION
RIESGO DE CORRIENTAZO
NO ABRA
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS
ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO A LA
LLUVIA O LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO.
NO ABRA LA CUBIERTA. NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO
REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS.
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
ATTENTION: PROTÉGEZ CET APPAREIL DE LA PLUIE ET DE L'HUMIDITÉ
AFIN D'ÉVITER TOUT RISQUE D'INCENDIE OU D'ÉLECTROCUTION. POUR
REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE
PIECE INTERNE N'EST REPRABLE PAR L'UTILISATEUR. POUR TOUTE
REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.
INPUT
1
POWER
13
2
INPUT
2
LEVEL
LEVEL
1
EQUALIZATION
LO LO
2
HI
MIDHIMID
CD
INPUT
LIMITER
AMP
TWEETE
WOOFER
HEAD
PHONES
1. INPUT 1: Use this jack to connect a high
or low impedance microphone to the
amplifier by means of a shielded instrument cable. The signal level at this jack is
controlled by the Level 1 knob (#2).
2. LEVEL 1: Use this control to adjust the
level of the signal connected to the Input 1
jack (#1).
3. INPUT 2: Use this jack to connect your
keyboard or other line level signal to the
amplifier by means of a shielded instrument 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).
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 output. 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 output. Rotating the control clockwise increases 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 output. Rotating the control clockwise increases 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 connect 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. (HEADPHONES): Use this jack to
connect headphones to the amplifier. The
internal speaker is disconnected when this
jack is used. Aline 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.
11. ON: This LED illuminates when the
amplifier is turned on.
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.
KXB25 Keyboard Amplifier
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KXB25 Keyboard Amplifier
KXB25 TECHNICAL SPECIFICATIONS:
Output Power Rating 25W RMS @ 2% THD, 4 ohms
Input Impedance 20k ohm
Gain 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.
©2004 SLM ELECTRONICS, A DIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. U.S.A. 63133
P/N 47-377-01 • 122904
www. crateamps.com
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
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