2
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 preamp, yourself and others.
The amplifier is equipped with a three-pronged AC power cord. To reduce the risk of electrical shock,
NEVER remove or otherwise attempt to defeat the ground pin of the power cord.
Connect the amplifier ONLYto 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 subjected 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.
When using tall or stacked speaker cabinets, use them ONLYon a level surface. NEVER set tall or stacked
cabinets on a surface with more than a five degree incline since tipping or falling could occur, possibly caus-
ing serious injuries.
Always keep the total speaker impedance at or above the rated load.
Unplug the amplifier before cleaning it. NEVER spray liquid cleaners onto the amp. Wipe it with a slightly
dampened, lint-free cloth to remove dirt and film.
Don’t 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!
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER.
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
ATTENTION: 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.
VORSICHT
ELEKTRISCHE SCHLAGGEFAHR
NICHT OFFENEN
VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT
DEN DECKEL ABENHMEN. INTERNE TEILE KONNEN NICHT VOM
BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM
WARTUNGSPERSONAL ZU UBERLASSEN.
THIS EQUIPMENTHAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERATION. IN ORDER TO PROLONG THE LIFE OF THE UNITAND PREVENTACCIDEN-
TALDAMAGES OR INJURY, PLEASE FOLLOW THESE PRECAUTIONARYGUIDELINES:
WARNING:TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOTOPEN CHASSIS; DO NOT DEFEATOR REMOVE THE GROUND PIN OF THE POWER CORD; CONNECTONLY TO APROP-
ERLYGROUNDED AC POWER OUTLET.
CAUTION:TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENTTO RAIN OR MOISTURE.
CAUTION:NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION:OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMANENT
HEARING IMPAIRMENTOR LOSS. USER CAUTION IS ADVISED AND EAR PROTECTION IS RECOMMENDED IF UNITIS OPERATED ATHIGH VOLUME. The chart below shows the U.S.
Government Occupational Safety and Health Administration (OSHA) regulations which were in effect at the time of this publication for permissible noise exposure, per 29CRF1910, Table G-16.
According to OSHA, any exposure in excess of those listed above could result in some hearing loss.
"ITIS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
"REFERREZ-VOUS AU MANUALD'UTILISATION"
"UNBEDINGTIN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN"
EXPLANATION OF
GRAPHICALSYMBOLS:
"DANGEROUS VOLTAGE"
"DANGER HAUTE TENSION"
"GEFAHLICHE SPANNUNG"
==
SOUND LEVELdBA DURATION PER DAY
SLOW RESPONSE IN HOURS
90 8
92 6
95 4
97 3
100 2
SOUND LEVELdBA DURATION PER DAY
SLOW RESPONSE IN HOURS
102 1-1/2
105 1
110 1/2
115 1/4 or less
TABLEOF CONTENTS

Important Safeguards and Precautions . . . . . . . . . . . . . . .2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .3

The Front Panel Controls and Their Use . . . . . . . . . . . . . .4

The Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Some Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . . .6

Changing the Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Setting Tube Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .back cover

Technical Specifications . . . . . . . . . . . . . . . . . . .back cover

SVT-2 PRO Bass Amplifier