Crate Amplifiers Stereo Amplifier KXB25 User Manual

KXB25 Keyboard  
Amplifier  
User’s Guide  
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KXB25 Keyboard Amplifier  
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 com-  
ponents. 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  
System Block Diagram:  
INPUT  
1
TWEETER  
WOOFER  
POWER  
AMP  
1
3
LEVEL  
1
EQUALIZATION  
2
INPUT  
2
LO LO HI  
MID MID  
HI  
LIMITER  
CD  
HEAD  
PHONES  
INPUT  
LEVEL  
2
CAUTION  
PRECAUCION  
ATTENTION  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
RIESGO DE CORRIENTAZO  
NO ABRA  
RISQUE D'ELECTROCUTION  
NE PAS OUVRIR  
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC  
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOIS-  
TURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT  
REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.  
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.  
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS  
O
DESCARGAS  
LA  
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.  
ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO  
A
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.  
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.  
EXPLANATION OF GRAPHICAL SYMBOLS:  
EXPLICACION DE SIMBOLOS GRAFICOS:  
EXPLICATION DES SYMBÔLES GRAPHIQUES:  
"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"  
"DANGEROUS VOLTAGE"  
“VOLTAJE PELIGROSO”  
"DANGER HAUTE TENSION"  
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KXB25 Keyboard Amplifier  
1
2
3
4
5
6
7
8
9
10  
11 12  
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  
Manufacturers 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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