CR-1 LIMITED EDITION GUITAR AMPLIFIER USER’S GUIDE
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER 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 ..........................................................
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER What Were 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.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER 1 2 3 4 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.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER 6 7 The Front Panel (continued): 6. Line Out: Use this jack to send a line level signal from the amplifier to a mixing board, external amplifier or powered monitor, or a recording device. WARNING: Do not attempt to use headphones in the Line Out jack! 7. Power: Use this switch to turn the amplifier on (toggled down) and off (toggled up). The red lamp above the paddle illuminates when the amplifier is turned on. The Rear Panel (not shown): 8.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER Important Information About Tubes and Tube Products: A Brief History Of The Tube: In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Years later, in 1905, Fleming expanded on Edison's discovery and created the "Fleming Valve". Then, in 1907, Dr. Lee de Forest added a third component – the grid – to the "Fleming's Valve" and the vacuum tube was a fact of life.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER Important Information About Tubes and Tube Products (continued): "looser" low-end response and produces more harmonics at mid and high frequencies ("creamier" sound). These differences become more noticeable at higher volumes. The EL84 and 6L6 tubes produce a big low-end thump and have a very good dynamic range. They offer a more traditional "American Rock" sound. The EL84 and 6V6 tubes produce a creamy sound with nice distortion.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER Important Information About Tubes and Tube Products (continued): You can check your preamplifier tubes for microphonics by turning the amplifier on, turning up the gain and tapping lightly on each tube with the end of a pencil or a chop stick (my favorite). You will be able to hear the tapping through your speakers, which is normal. It is not normal for a tube to ring like a bell after it’s tapped. If it does ring then it’s microphonic and should be replaced.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER Important Information About Tubes and Tube Products (continued): Survival Tips For Tube Amplifiers: To prolong tube life, observe these tips and recommendations: • Match the impedance of your speaker cabinet(s) to your amplifier. Improper impedance matching will contribute to early tube degradation and may cause premature tube failure. • Make sure the speaker(s) are properly connected prior to turning on the amplifier.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER Suggested Settings CLEAN SOUND: CRUNCHY ROCK: OUT OUT IN PICK ATTACK: IN CHOCOLATE: IN CHUNKS: 10
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER System Block Diagram: 12AX7A V1A INPUT 12AX7A V1B EL84 V2 SPEAKER VOLUME TONE ON/ OFF GAIN LINE OUT Declaration Of Conformity #35, Effective 01-01-2001 Manufacturer’s Name: Production Facility: Production Facility: Shipping Facility: Office Facility: SLM Electronics 11880 Borman Drive, St. Louis, MO 63146, USA 700 Hwy 202 W, Yellville, AR 72687, USA 1400 Ferguson Ave., St. Louis, MO 63133, USA 1400 Ferguson Ave., St.
CRATE CR-1 LIMITED EDITION GUITAR AMPLIFIER Technical Specifications: OUTPUT POWER RATING 5 W RMS @ 10%THD, 8 ohm load, 120 VAC INPUT IMPEDANCE 1 M ohm MAX. SIGNAL ACCEPTED 2v peak-to-peak SIGNAL TO NOISE RATIO 70dB typ GAIN 60dB w/ Gain switch off, 90dB w/Gain switch on TONE CONTROL 33dB @ 10kHz LINE OUT LEVEL 0.
