Crate Amplifiers CRATE MX20RC User's Manual
Contents
1. MHZ DIC Guitar Amplifier MX20RC TECHNICAL SPECIFICATIONS Output Power Rating gt 20 watts RMS 5 THD 4 ohms 120 VAC Gain Overdrive Channel 86 6dB 1kHz Gain Clean Channel 46 6dB 1kHz Tone Control Range Low 25dB 80Hz Tone Control Range Mid 19dB 900Hz Tone Control Range High 23dB O 5kHz Signal To Noise Overdrive Channel gt 50dB signal To Noise Clean Channel gt 65dB Maximum Input Signal Accepted gt 1 2 volts RMS Internal Speaker 10 Crate Custom Design 4 ohm Power Requirements 120 VAC 60Hz 20VA 100 115VAC 50 60Hz 20VA 100 115VAC 50 60Hz 20VA Size and Weight 15 H x 16 75 W x 9 5 D 21 lbs 14 loth he fi The MX20RC is covered with a durable black Tolex material wipe it clean with a lint fre Never spray cleaning agents onto the cabinet Avoid abrasive cleansers which would dat Crate continually develops new products as well as improves existing ones For this reasor and information in this manual are subject to change without notice 2001 SLM Electronics a division of St Louis Music Inc 1400 Ferguson Avenue St Louis MO 63301 18 166 51 02 012. Owner s Guide for the MinZOlRC Guitar Amplifier Congratulations You are now the proud owner of the compact but powerful Crate MX20RC amplifier Two versatile channels one crystal clear and the other with our patented Flex Wave distortion combined with reverb and a three band EQ and a switchable Chorus offer you more flexibility and performance than any amp in its class Our Flex Wave circuitry uses sequential cascad ing gains to deliver distortion which is rich in harmonics and is touch sensitive A special damp ing circuit simulates the current source type of output of a tube amp giving you solid state reli ability combined with classic tube sounds Like all Crate products your MX20RC is designed by musicians and built using only the best components Extensive testing confirms that this amplifier is the absolute best it can be In order to get the most out of your new amplifier we strongly urge you to read the infor mation contained in this manual before you begin playing mm And thank you for choosing 4 TABLE OF CONTENTS Important Safeguards and Precautions 3 ie Front Pane E E eee te wee Suggested Settings System Block Diagram D ees Technical Specifications CAUTION PRECAUCION ATTENTION RISK OF ELECTRIC SHOCK RIESGO U CORRIENTAZG e D E ma DO NOT OPEN E
3. PA WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC ARA SOD ATTENTION PROTEGEZ CET APPAREIL DE LA PLUIE ET DE L HUMIDITE O P AFIN D VITER TOUT N INCENDIE a mn OCUTION POUR RIESG REDUIRE D ELECTROCUTION NE PAS ENLEVER LE COUVERCLE JE ae PIECE INTERNE N EST REPRABLE PAR L UTILISAT EUR POUR TOUTE EPARAR DEJE ODO MANTE MA NTO 10 TECHNICOS CALIFICADOS REPARATION SADRESSER A UN TECHNICIEN QUALIFIE Ja YY NSTRUCTIONS READ FOLLOW HEED AND F A LINSTRUC AND VARNINGS e DO NOTOPERATE NEAF e 4 SOURC ND DO NO E LOCK ANYVENTILATION OPENINGS ON THIS APPARATUS e DO NOTUSE THIS APPARATUS NEAR SP A HING FA LEING PRAYING OR STANDING LIQUIDS e CLEAN ONLY WI H LINT po AMI OT eo 4 D ver E CLEANING AGENTS e ONLY CONNECT POWER CORD 1 e POLAF GROUNDED OUTLETWIRED TO CURRENTELECTRICALCODES AND COMPATIBLE WITH VOLTA GE o AND F REGU NCYREQUIREMENTS STATED ON THE REAR PANELOF THE APPARATUS ROM D e PROTECTTHE POWER IMAGE D J TO BEING WALKED ON PINCHED OR STRAINED e UNPLUG THE APPA R Rit G LIGHT NG STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME e ONLY USE AT iain ENTS ACD SSORIES STANDS OR BRACKETS SPECIFIED BYTHE MANUFACTURER FOR SAFE OPERA TION AND 7 VOID INd HY e THIS APPA RATUS D DOES NOTOPER ATE NORMALLY AND REQUIRES SERVICE WITH ANY PHYSICALDAMAGE FROM IMPACTOR ANY E POSURE O MO STURE dl SERVICE MUSTBE PERFORMED BYQUALIFIED PERSONNEL OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVEL
4. S CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENTOR LOSS USER CAUTION IS ADVISED AND EAR PRO TECTION IS RECOMMENDED IF UNITIS OPERATED AT HIGH VOLUME ea EXPLICACION DE SIMBOLOS GRAFICOS ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES EXPLICATIONDESSYMBOLESGRAPHIQUES REFERREZ VOUS AU MANUAL D UTILISATION VOLTAJE PELIGROSO DANGER HAUTE TENSION EXPLANATION OF GRAPHICAL SYMBOLS DANGEROUS VOLTAGE IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL 562 OR Guitar Amplifier Ze Important Safequards and Precautions All Crate products are designed fo continuous safe operation Abiding by the following rules can help prevent damage to your amplifier yourself and othe Fi e The ampli i quipped with a three pronged AC power cord To reduce the risk of electrical shock NEVER remove or oth lerwise Bes mpt to defeat the ground pin of the power cor EA EEO lt 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 subjected to any of the preceding abuses have it looked at by an authorized service center e Do not expose the unit to splashing or dripping liquid Do not place liquid filled objects on the unit e NEVER set the amplifie
5. TION To avoid possible damage to your hearing do not use headphones for extended periods of time at extremely loud listening levels 12 EXTERNAL SPEAKER Use this jack to connect the amplifier to an external speaker The internal speaker is disconnected when this jack is used The mini mum impedance for the external speaker is 4 ohms 13 ON LED This LED will illuminate when power is applied to the amplifier 14 POWER Use this switch to turn the amplifier on and off 15 AC LINE CORD Rear panel not shown This grounded power cord is to be plugged into a grounded power outlet wired to current electric codes and compatible with voltage power and frequency requirements stated on the rear panel Do not attempt to defeat the safety ground connection 484 ZORU Guitar Amplifier Suggested Settings Clean POUERDRILE 3 CLEANS 1 EQUALIZATION AEVERA iis LE L Liu LH 116 HI LELEL Blues TIT ROR TTTT2 I LE Fihi EDL TI TIT RELE Ra ci HAT Kalla aot ICE LELMEL TE 100 HA I LELIFL Rhythm MAZORC LALA PA ae LE FIA EAU IIS Fa j AA HELIER A PHs LEUEL ES LELEI iui Cs BILI In uns LELEL Lead OVERDAINE 4 CLEAN EQUALIZATION REVERS ee LO LL Gm Lih m U aaa j Kas LEU a lifier w oe Guitar Am CG System Block Diagram MisZO m
6. r on a support that will not bear its weight Always keep the total soeaker 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 damp ened lint free cloth to remove dirt and film e 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 Prolonged exposure to high volume levels may cause per manent hearing loss or damage Such damage is progres sive and irreversible a EI Lruti JE Tu Lin m 1 INPUT Use this 1 4 jack to connect your guitar to the amplifier by means o a shielded instrument cable OVERDRIVE CHANNEL A high gain channel giving you sounds fro edge to serious overdrive 2 GAIN Use this control to adjust the amount of distortion fc channel With the control counter clockwise the sound will ha pressed quality As you rotate the control clockwise the amo increases y 3 LEVEL Use this control to adjust the output level of he O 4 CHANNEL SWITCH Use this switch to select either chan in the out position the Clean channel is se ected Nhen the s the Overdrive channel is el x AN CLEAN CHANNEL nal gair channel designed to give you crystal clear sounds to mediu 3 stort MTI 5 LEVEL Thi trol sets the output volume level from the Clean channel in the full counter SME po
7. sition there will be no output as you rotate the con trol clockwise the ol tput lev el in uses The full clockwise setting is maximum output as a se the evel roll back the Low control 6 EQUALIZATI o y j 6 LOW fi tro to adjust the low frequency level of the amplifier Due to the mas 5 unt of low end available you may want to roll off the bass at high o ume E Sligh ho Mk istorti IO WS Ive channel el Wit the switch Itch is depressed z ff MID Us e this control to adjust the midrange frequency level of the amplifier 8 HIGH Use this control to adjust the high frequency level of the amplifier e A AA r IQ A A O A Vq1 02 OI Guitar Amplifier i a B is ae E pe of y si foe MEA p POLEA sf en n a wu e 9 REVERB LEVEL Use this control to adjust the amount of reverberation in its full counter clockwise position the signal will be dry without any reverb As you rotate the control clockwise the amount of reverberation increases 10 CHORUS This switch when depressed activates the built in preset chorus effect to enhance the sound of either channel 11 HEADPHONES Use this jack to listen to the amplifier through a pair of stereo adphones The internal speaker is disconnected when the headphones jack is CAU
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