Crate Amplifiers GX-40M User's Manual
Contents
1. GX 40M GUITAR AMPLIFIER OWNER S MANUAL Congratulations You are now the proud owner of the compact but powerful Crate GX 40M amplifier Featuring a Clean channel with a 3 band EQ and Level control and an Overdrive channel with our patented Flex Wave circuitry with Gain Level and Crate s Shape control plus Chorus and Reverb The GX 40M offers you more flexibility and perform ance than any amp in its class A special damping circuit simulates the current source type of output of a tube amp giving you solid state reliability combined with classic tube sounds Like all Crate products your GX 40M is Musician Made in the U S A using only the best components Extensive testing at the hands and ears of skilled technicians and musicians insures you 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 go over the information contained in this manual before you begin playing TE And thank you for choosing CRATE CRATE on Amplifier O V E R D R I V E P ale 8 3 0 10 LEVEL OVERDRIVE 0 10 LEVEL 1 INPUT Connect your guitar here using a shielded instrument cable OVERDRIVE CHANNEL A high gain channel giving you sounds from a slight edge to serious overdrive 2 GAIN This control sets the amount of compression and distortion from the amplifier With the control towards far left the sound will have a thick compressed qu2. ION VORSICHT RISK OF ELECTRIC SHOCK RISQUE D ELECTROCUTION ELEKTRISCHE SCHLAGGEFAHR DO NOT OPEN NE PAS OUVRIR NICHT OFFENEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK ATTENTION POUR REDUIRE D ELECTROCUTION NE PAS VORSICHT ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT DO NOT REMOVE COVER ENLEVER LE COUVERCLE AUCUNE PIECE INTERNE N EST REPRABLE DEN DECKEL ABENHMEN INTERNE TEILE KONNEN NICHT VOM SER SERVICEABLE PARTS INSID PAR L UTILISATEUR POUR TOUTE REPARATION S ADRESSER A UN BENUTZER GEWARTET WERDEN DIE WARTUNG IS QUALIFIZIERTEM NO U SIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL TECHNICIEN QUALIFIE WARTUNGSPERSONAL ZU UBERLASSEN THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERATION IN ORDER TO PROLONG THE LIFE OF THE UNIT AND PREVENT ACCIDENTAL DAMAGES OR INJURY PLEASE FOLLOW THESE PRECAUTIONARY GUIDELINES CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT OPEN CHASSIS DO NOT DEFEAT OR REMOVE THE GROUND PIN OF THE POWER CORD CONNECT ONLY TO A PROPERLY GROUNDED AC POWER OUTLET WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO 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 OPERA CAN PME Poir cd HEARING IMPAIRMENT OR LOSS USER CAUTION IS ADVISED AND EAR PROTECTION
3. IS RECOMMENDED IF UNIT IS PERATED AT HIGH VOLUME EXPLANATION OF GRAPHICAL SYMBOLS DANGEROUS VOLTAGE IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL VOLTAJE PELIGROSO ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES EXPEGAGION DESIMBOLOS GRACO DANGER HAUTE TENSION REFERREZ VOUS AU MANUAL D UTILISATION EXPLICATION DES SYMB LES GRAPHIQUES GEFAHLICHE SPANNUNG UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN Crate continually develops new products as well as improves existing ones For this reason the specifications and information in this Crate manual are subject to change without notice v C 1996 SLM ELECTRONICS A DIVISION OF ST LOUIS MUSIC 1400 FERGUSON ST LOUIS MO 63133 3 P N 47 421 02 04 96
4. ality As you turn the control to the right the amount of dis tortion increases Crate s exclusive Flex Wave circuitry uses sequential cascading gains to deliver distortion which is rich in harmonics and touch sensitive Use this control along with the Shape and Level controls 3 and 4 to create a wide variety of sounds 3 SHAPE To quickly dial in just the right distortion sound simply rotate the Shape control until you find the sound you re looking for Adjusting the shape of the distortion wave pro duces a wide variety of tone combina tions allowing you to tailor the sound to best suit your needs In essence turning the control towards the left enhances the mid frequencies turn ing it to the right enhances the low and high frequencies 4 LEVEL This control sets the out put volume level from the Overdrive channel in the far left position there will be no output as you turn the con trol to the right the output increases Use this control along with the Gain control 2 to create a wide variety of sounds 5 OVERDRIVE SELECT When this pushbutton switch is pressed in the Overdrive channel is engaged The clean channel is selected when this switch is out A footswitch see 14 overrides this switch CLEAN CHANNEL A normal gain channel designed to give you crystal clear sounds to medium distortion 6 LEVEL This control sets the out put volume level from the Clean chan nel in th
5. be dry without any reverb As you turn the control to the right the amount of reverberation increases 11 CHORUS ON To activate the Chorus effect press this switch in This switch is disabled when a footswitch is plugged in see 14 12 DEPTH Adjust the overall amount of chorus with this control to the left for slow smooth phasing sounds to the right for faster vibrato sounds 13 RATE Adjust the speed of the chorus effect with this control to the left for a little effect to the right for a lot 14 FOOTSWITCH Plug a dual footswitch such as the Crate CFP 2 here to control channel selection and chorus on off Tip channels ring FOOTSWITCH CO ue 15 16 17 18 chorus sleeve ground 15 HEADPHONES For private prac tice sessions plug a pair of stereo headphones into this jack The inter nal speaker is disconnected whenev er headphones are being used 16 EXTERNAL SPEAKER You may connect the GX 40M to an external speaker with a rated impedance of at least 4 ohms using this jack The internal speaker is disconnected whenever an external speaker is used WARNING DO NOT attempt to use head phones in the Speaker jack Permanent hearing damage could result 17 ON LED The word ON will glow when you turn on the GX 40M show ing you that the amplifier is activated and ready to play 18 POWER This heavy duty rocker type switch is used to turn the amplifi er ON in the up p
6. e far left position there will be no output as you turn the control to the right the output level increases The far right setting is maximum out put as you increase the level roll back the Low control 7 7 LOW Adjust the low frequency out put level with this control turning the control to the left reduces the low fre quency output turning it to the right increases the low frequency output The Low control allows a total range of 25dB of boost or cut at 80Hz Due to the massive amount of low end available you may want to roll off the bass at high volumes 8 MID Adjust the mid frequency out put level with this control the center position is flat no boost or cut Turning the control to the left reduces the midrange output turning it to the CRATE Amplifier ale GX 40M EE I Z VCC e e Pd Vu ES I 7 J ON CHORUS 0 10 0 10 0 10 REVERB DEPTH RATE right increases the midrange output The Mid control allows for 19dB of boost or cut at 900Hz 9 HIGH Adjust the high frequency output level with this control in the center position the high frequency output will be flat no boost or cut Turning the control to the left reduces the high frequency output turning it to the right increases the high frequency output The High control allows a total range of 23dB of boost or cut at 5kHz 10 REVERB Adjust the amount of Reverb effect with this control in its full left position the signal will
7. osition off in the down position The ONLED 17 works with this switch as a visual indi cator 19 POWER CORD Rear panel not shown This heavy duty grounded three wire power cord is to be plugged into ONLY a safely wired grounded 120 volt 60 cycle AC power outlet DO NOT attempt to defeat the ground connection of this cable TE GX 40M Amplifier GX 40M TECHNICAL SPECIFICATIONS Output Power Rating gt 30 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 5kHz Signal To Noise Overdrive Channel gt 50dB Signal To Noise Clean Channel gt 65dB Maximum Signal Accepted gt 1 2 volts RMS min 400Hz Internal Speaker 12 Crate Custom Design 4 ohm Power Requirements 120 VAC 60Hz 50 watts max Size and Weight 17 5 H x 18 W x 10 D 19 Ibs 445mm H x 457mm W x 254mm D 8 6kg SYSTEM BLOCK DIAGRAM BUFFER CLEAN OVERDRIVE E REVERB POWER EXT SPEAKER LEVEL LOW MID HIGH DAMPING FLEX WAVE STAGE SPEAKER OVERDRIVE DEPTH RATE ATTENUATOR Li HONES GAIN SHAPE LEVEL The GX 40M is covered with a durable black Tolex material wipe it clean with a lint free cloth Never spray cleaning agents onto the cabinet Avoid abrasive cleansers which could damage the finish CAUTION ATTENT
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