BA-115
BASS AMPLIFIER
Owner’s Manual
BA-115 BASS AMPLIFIER
CAUTION PRECAUCION ATTENTION
RISK OF ELECTRIC SHOCK RIESGO DE CORRIENTAZO RISQUE D'ELECTROCUTION
DO NOT OPEN NO ABRA NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS ATTENTION: PROTÉGEZ CET APPAREIL DE LA PLUIE ET DE L'HUMIDITÉ
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOIS- ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO A LA AFIN D'ÉVITER TOUT RISQUE D'INCENDIE OU D'ÉLECTROCUTION. POUR
TURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT LLUVIA O LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO. REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE
REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. NO ABRA LA CUBIERTA. NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO PIECE INTERNE N'EST REPRABLE PAR L'UTILISATEUR. POUR TOUTE
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS. REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.
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.
• THIS APPARATUS DOES NOT OPERATE NORMALLY AND REQUIRES SERVICE WITH ANY PHYSICAL DAMAGE FROM IMPACT OR
ANY EXPOSURE TO 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.
EXPLANATION OF GRAPHICAL SYMBOLS: "DANGEROUS VOLTAGE" "IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
EXPLICACION DE SIMBOLOS GRAFICOS: = “VOLTAJE PELIGROSO”
= “ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.”
EXPLICATION DES SYMBÔLES GRAPHIQUES: "DANGER HAUTE TENSION" "REFERREZ-VOUS AU MANUAL D'UTILISATION"
IMPORTANT SAFEGUARDS AND PRECAUTIONS:
All Ampeg products are designed for continuous safe operation, as long as common sense is used and steps are taken to help avoid
certain problems. Abiding by the following rules can help prevent damage to your amplifier, yourself and others.
• The amplifier is equipped with a three-pronged AC power cord. To reduce the risk of electrical shock, NEVER remove or oth-
erwise attempt to defeat the ground pin of the power cord.
• Connect the amplifier ONLY to a properly grounded AC outlet of the proper voltage for your amp.
• Avoid sudden temperature extremes, rain and moisture. Also, avoid sudden and intense impact. (If the unit has been sub-
jected to any of the preceding abuses, have it looked at by an authorized service center.)
• NEVER set the amplifier on a support that might give out under its weight.
• Always keep the total speaker impedance at or above the rated load.
• Unplug the amplifier before cleaning it. NEVER spray liquid cleaners onto the amplifier. Wipe it with a slightly dampened, lint-
free cloth to remove dirt and film.
• Do not use the amplifier if it has sustained damage to the chassis, controls, or power cord. Refer the unit to an authorized
service center for inspection.
• Amplifiers capable of producing high volume levels are also capable of inflicting permanent hearing loss or damage, if the
exposure to such levels is prolonged. Such damage is progressive and irreversible!
Declaration Of Conformity
#29, Effective 01-01-2001
Manufacturer’s Name: SLM Electronics
Production Facility: 11880 Borman 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 Standards:
LVD: 92/31/EEC, 93/68/EEC, & 73/23/EWG
Safety: EN60065
EMC: EN55013, EN55020, EN55022, EN61000-3-2,
& EN61000-3-3
Supplementary information provided by your local Sales & Services Office or:
SLM Electronics - R & D Engineering
1901 Congressional Drive, St Louis, MO 63146, USA
Tel.: 314-569-0141, Fax: 314-569-0175
BA-115 BASS AMPLIFIER
TOP PANEL:
1. 0dB INPUT: Connect your “passive” bass 8. BASS: This control is used in conjunction
guitar here using a shielded instrument with the style control to adjust the low fre-
cable. This input is not padded and is best quency level of the amplifier.
suited for basses without active electronics
or “hot” pickups. 9. CD INPUT: These jacks (RCA type) are
used to connect the line level (or head-
2. -15dB INPUT: Connect your “active” bass phones) output of a CD player or tape deck.
here using a shielded instrument cable. This The inputs to these jacks are summed into
input is padded 15dB and is best suited for a mono signal which is fed into the BA-115
basses with active electronics and/or “hot” just prior to its power amplifier. Use the vol-
pickups. ume control on the CD or tape player to con-
3. GAIN: Use this control in conjunction with trol the output level.
your instrument’s volume controls to adjust 10. HEADPHONES: The internal speaker is
the level of the signal sent to the preamp. disconnected when the headphones jack is
4. MASTER: Use this control to adjust the used.
overall listening level of the amplifier. This 11. LINE OUT: This jack supplies a post-eq,
control is also used to adjust the signal level balanced line level signal for connecting to a
at the Line Out jack (#11). house sound board, recording unit or exter-
5. STYLE: This five-position switch is used nal amplifier. The amplitude of this signal is
to control the tone of the amplifier. Please adjusted by the Master control (#4).
refer to the TECHNICAL SPECIFICATIONS 12. ON LED: This LED is illuminated when
on the back page of this manual for an the amplifier is plugged in and turned on.
explanation of the function of each position.
Experiment with the Style and other eq con- 13. POWER: This switch is used to turn the
trols (#6,7,8) for the results which suit you amplifier on or off.
best.
AC LINE CORD: (rear panel, not shown)
6. TREBLE: This control is used in conjunc- This grounded power cord is to be plugged
tion with the style control to adjust the high into a grounded power outlet, wired to cur-
frequency level of the amplifier. rent electric codes and compatible with volt-
age, power, and frequency requirements
7. MID: This control is used in conjunction stated on the rear panel. Do not attempt to
with the style control to adjust the midrange defeat the safety ground connection.
level of the amplifier.
BA-115 BASS AMPLIFIER
TECHNICAL SPECIFICATIONS:
OUTPUT POWER RATING 100 Watts at 4 ohms
MAX INPUT LEVELS 0dB Input: 1.75V RMS
-15dB Input: 9.75V RMS
CD Input: 5V RMS
LINE OUT LEVEL 120mV RMS
HEADPHONE OUT LEVEL 3.75V RMS
GAIN 39dB
STYLE 1 = -25dB @500Hz
2 = -12dB @500Hz
3 = flat
4 = +5dB @2kHz and above
5 = -6dB @50Hz and below
TREBLE 40dB range @10kHz
ULTRA MID 30dB range @500Hz
BASS 36dB range @50Hz
SPEAKER SPECS 15”, 150 w, 4 ohm, 2.5” voice coil dia., 56 oz. magnet;
Piezo tweeter
POWER REQUIREMENTS 120VAC, 60Hz, 70VA
100/115VAC, 50/60Hz, 70VA
230VAC, 50/60Hz, 70VA
SIZE AND WEIGHT 21” W x 21” H x 15-1/2” D; 62 lbs.
SYSTEM BLOCK DIAGRAM:
0dB TONE CIRCUITS SPEAKER
INPUT
MIXER LIMITER
& POWER AMP HEAD
PHONES
GAIN
TREBLE MID BASS MASTER LINE
-15dB OUT
INPUT
L
CD
STYLE INPUTS
R
Ampeg continually develops new products, as well as improves existing ones. For this reason,
the specifications and information in this manual are subject to change without notice.
www.ampeg.com
Made with Pride in the U.S.A. by Ampeg
©2001 Ampeg, 1400 Ferguson Avenue, St. Louis, MO 63133 U.S.A.
47-054-02 • 07/01
