Ampeg B-200R User Manual
Table of Contents:
Introduction.............................................................................................3
The Front Panel ...................................................................................4,5
Important Information About Tubes and Tube Products
A Brief History Of The Tube............................................................6
Preamp Tube Types and Usage......................................................7
The Nature of Tubes: Why (and When) to Replace Them ...........8
Survival Tips For Tube Amplifiers..................................................9
System Block Diagram.........................................................................10
Technical Specifications .......................................................back cover
2
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.
2
Thank you for selecting the Ampeg Rocket Bass amplifier. Inspired
by the classic Ampeg bass amps of the sixties, this easy-to-use
amplifier represents Ampeg’s quest to provide you the finest
instrument amplification systems available. In order to get the most
out of your new amplifier, please read this user’s guide prior to its use.
3
Introduction:
1. 0dB Input accepts a standard 1/4” instrument
plug from your bass. This input is suited for use
with instruments that have passive electronics.
2. -15dB Input accepts a standard 1/4” instrument plug from high output basses. This input is
padded 15dB to compensate for higher output
sources and is suited for use with basses that
have active electronics or high output pickups.
3. Ultra Low increases the low frequency output
by 7dB at 40Hz. This adds to the rumble and
overall feel of the low bass notes.
4. Ultra Mid decreases the mid frequency output by 6dB at 600Hz. This removes some of the
middle frequencies for a “contoured” sound.
5. Ultra High increases the high frequency output by 7dB at 5kHz. This adds crispness to your
sound.
6. Peak LED illuminates when the Gain control
(#8) is set too high. This indicates overdriving of
the preamplifier which causes clipping. (See the
Gain control, #8.)
7. Signal LED illuminates when the Gain control
(#8) is adjusted properly. (See the text for the
Gain control.)
8. Gain must be adjusted to match the output of
your instrument to the amplifier. For the proper
setting, turn on the amplifier, rotate the Gain
control and the Master control (#13) fully counter clockwise and begin playing your bass.
Rotate the Gain control clockwise until the
Signal LED (#7) illuminates while playing and
the Peak LED (#6) flashes occasionally.
9. Bass adjusts the output level of the low frequencies and offers a cut or boost of 12dB at
70Hz.
10. Low Mid adjusts the output level of the lower
midrange frequencies and offers a cut or boost
of 12dB at 300Hz.
11. High Mid adjusts the output level of the
upper midrange frequencies and offers a cut or
boost of 11dB at 1.5kHz.
12. Treble adjusts the output level of the high
frequencies and offers a cut or boost of 14dB at
7kHz.
4
The Front Panel:
6
1 2 3 4 5
7
8 9 10
Loading...