BT15
BASS AMPLIFIER
USER'S GUIDE
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 OPERATION 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 PRO-
TECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME.
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 MOIS-
TURE. 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.
BT15 Bass Amplifier
Congratulations!
You are now the proud owner of the compact Crate BT15 Bass Amplifier. The
BT15 features four bands of equalization, an external speaker jack and a jack for
headphones.
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 Crate.
INPUT
EXTERNAL
SPEAKER
HEAD
PHONES
LO MID
LOW
GAIN
HI MID
HIGH
BUFFER
POWER
AMP
EQ
SPEAKER
ATTENUATOR
CD
INPUT
BT15 Block Diagram:
1
2
3
4
5
6
7
8
9 10 11
1. INPUT: Connect your bass here by means of a shielded instrument cable.
2. GAIN: Use this control to adjust the overall output level of the amp.
3. LOW: Use this control to adjust the low frequency output level. Rotating the control count-
er clockwise reduces the low frequency output, rotating the control clockwise increases it.
4. LO MID: Use this control to adjust the lower midrange frequency output level. Rotating the
control counter clockwise reduces the lower midrange frequency output, rotating the control
clockwise increases it.
5. HI MID: Use this control to adjust the upper midrange frequency output level. Rotating the
control counter clockwise reduces the upper midrange frequency output, rotating the control
clockwise increases it.
6. HIGH: Use this control to adjust the high frequency output level. Rotating the control count-
er clockwise reduces the high frequency output, rotating the control clockwise increases it.
7. 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 sig-
nal for the proper mix with your bass.
8. EXTERNAL SPEAKER: Use this jack to connect the amplifier to an external speaker cab-
inet. The internal speaker is disconnected when this jack is used.
9. HEADPHONES: Use this jack to connect a pair of stereo headphones for private listening.
The internal speaker is disconnected when this jack is used.
10. ON LED: This LED illuminates when the amplifier is on.
11. POWER SWITCH: Use this switch to turn the amplifier on (top of the switch depressed)
and off (bottom of the switch depressed).
12. AC LINE IN: (Rear panel, not shown) The grounded power cord should only be plugged
into a grounded outlet that meets all applicable electrical codes and is compatible with the volt-
age, power, and frequency requirements stated on the rear label. DO NOT attempt to defeat
the safety ground connection.
WARNING: DO NOT CONNECT HEADPHONES TO THE
SPEAKER JACK. HEARING DAMAGE MAY RESULT.
BT15 Bass Amplifier
The Front Panel:
©2003 ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. 63133
47-381-01 · 012704
BT15 Bass Amplifier
Output Power Rating
12 watts RMS @ 5% THD, 4 ohms, 120 VAC
Maximum Input Signal Level Accepted
15 volts peak-to-peak
Input Impedance
25k ohms
Signal to Noise Ratio
72dB
Low Control
15dB range @ 50Hz
Lo Mid Control
12dB range @ 250Hz
Hi Mid Control
13dB range @ 1kHz
High Control
24dB range @ 10kHz
Input Power Requirements
120 VAC, 60Hz, 30VA
100/115VAC, 50/60Hz, 30VA
230VAC, 50/60Hz, 30VA
Speaker Size and Rating
Crate Custom Design 8", 15 watts
Cabinet Size and Weight
14-1/2" H x 15" W x 9-1/2" D, 21 lbs
BT15 Technical Specifications:
BT15 Suggested Settings:
www.crateamps.com
Declaration Of Conformity
#27, Effective 01-01-2001
Manufacturer's Name:
SLM Electronics
Production Facility:
1901 Congressional Drive, St. Louis, MO 63146, USA
Production Facility:
700 Hwy 202 W, Yellville, AR 72687, USA
Shipping Facility:
1400 Ferguson Ave., St. Louis, MO 63133, USA
Office Facility:
1400 Ferguson Ave., St. Louis, MO 63133, USA
Product Type:
Audio Amplifier
Complies with the following Standards:
Safety:
EN60065, E60065, C22.2, UL6500 and/or UL813
EMC:
Directive 89/336/EEC, EN55103, EN55013, EN61000,
and/or FCC 47CFR 15B clA
Supplementary information provided by:
SLM Electronics - R & D Engineering
1901 Congressional Drive, St Louis, MO 63146, USA
Tel.: 314-569-0141, Fax: 314-569-0175
Specifications subject to change without notice
ROCK
JAZZ
COUNTRY
FUNK