Crate Amplifiers CR-1 User Manual
LIMITED EDITION
GUITAR AMPLIFIER
CR-1
USER ’S GUIDE
Table of Contents:
What Were We Thinking? ...................................................................3
The Front Panel................................................................................4,5
The Rear Panel....................................................................................5
Important Information About Tubes and Tube Products
A Brief History Of The Tube ..........................................................6
Tube Types and Usage ................................................................6,7
The Nature of Tubes: Why (and When) to Replace Them .......7,8
The Importance of Proper Biasing................................................8
Survival Tips For Tube Amplifiers................................................9
Suggested Settings...........................................................................10
System Block Diagram .....................................................................11
Technical Specifications ...................................................back cover
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER
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IMPORTANT SAFETY INSTRUCTIONS
• READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.
• DO NOT OPERATE NEAR ANYHEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS. FOR
PROPER OPERATION, THIS UNITREQUIRES 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 ONLYWITH LINT-FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS.
• ONLYCONNECT 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.
• ONLYUSE 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 PROTECTION 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 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.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER
What W
ere We Thinking?
The year was 1978 - the
first CR-1 was introduced
to fill the needs of musicians looking for a great
sounding, indestructible
guitar amplifier that was
easy to use, affordable,
and loud.
Crate was “an original”
back then, and throughout
our history, originality and
innovation have gone
hand-in-hand. Over the
years we have won more
awards in the U.S.A. for
excellence and innovation
in amplifiers than any
other company in the
music industry. Our Shape
circuitry made finding
“your sound” as simple as
turning a single knob. Our
Sequential Cascading
Gains (SCG) and our
patented Flex Wave technology (now at Version 5)
produced solid state
amplifiers with remarkable
distortion and tone.
This limited edition CR-1 embodies a great mix of the old and the new. The
timeless wooden crate, built like a tank and uniquely different, has been given
the new soul of a pure tube preamp and the loudest, most toneful 5 watt Class
A tube power amp imaginable.
It was from this original amp design that the CRATE name was born. It symbolizes our dedication to building products with durability, simplicity, and great
tonality in mind. Crank it up and check it out!
33
The Front Panel:
1. Input: Connect your instrument here by
means of a shielded signal cable.
2. Gain: This control is only active when the
Gain On/Off switch (#3) is depressed. Use the
Gain control to boost the gain of the input signal. The maximum amount of additional gain
available is 30dB with this control rotated fully
clockwise.
3. Gain On/Off: This switch, when depressed,
activates the Gain control (#2).
4. Tone: Use this control to adjust the tonal
variations of the amplifier.
5. Volume: Use this control to adjust the output
level of the amplifier. At lower settings of the
Volume control the sound is usually brighter,
and the Tone control (#4) has more ef fect. Used
in conjunction with the Gain control (#2, switch
#3 depressed), this offers many sonic possibilities. (See Suggested Settings, page 10.)
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER
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