Crate Amplifiers GX-40D User's Manual
Contents
1. Studio Effect Simulates old fashioned multi spring tube reverb unit 16 Slapback Short Delay 125ms delay small reverb Elvis favorite 17 Slapback Med Delay 350ms delay small reverb Rockabilly special 18 Slapback Long Delay 557ms delay only 630 travel time of sound 19 Sh Md Surf Echo Echo 85ms delay with 14 2 regen amp small reverb 20 Sh Hd Surf Echo Echo 85ms delay with 27 3 regeneration 21 Sh Med Md Surf Echo 280ms delay with 21 8 regen amp small reverb 22 Md Sft Surf Echo Echo 335ms delay with 12 5 regeneration 23 Md Hd Surf Echo Echo 335ms delay with 26 5 regen amp small reverb 24 Md Glass Echo Echo 335ms delay with 43 7 regeneration 25 Lg Sft Surf Echo Echo 485ms delay with 7 8 regeneration 26 Lg Md Surf Echo Echo 485ms delay with 20 3 regeneration 27 Lg Hd Surf Echo Echo 485ms delay with 39 2 regen amp small reverb 28 Infinite Delay Special Effect 506ms delay with over 90 regeneration 29 Thickener Special Effect 33ms based sound fattener selected freqs 30 Multi Tap Special Effect Multi thickener with some subtle delays added 31 Reverse Special Effect Backwards masking effect number nine number nine J E GX 40C 40D Amplifier SUGGESTED STARTING SETTINGS METAL CRUNCH OVERDRIVE SPARKLING CLEAN sle wy ee 9 OVERDRIVE LOW MID SHAPE LOW MID OVERDRIVE INE 3E le e SHAPE LOW MID ner p8UFF2. flexibility and versatility possible THE DSP SETTINGS Name Type Description 0 Off None Bypass no signal processing occurs 1 Sm Rm Bright Small Reverb 8 x 8 empty room with hardwood floors 2 Sm Rm Dark Small Reverb 8 x 8 carpeted room with up to four people 3 Sm Hall Bright Small Reverb 20 x 40 Rehearsal Hall wood floors hard walls 4 Sm Hall Dark Small Reverb 20 x 40 carpeted Rehearsal Hall with draped walls and up to 30 people 5 Lg Hall Bright Large Reverb _50 x 100 empty Rehearsal Hall 20 ceilings 6 Lg Hall Dark Large Reverb 50 x 100 Rehearsal Hall with up to 50 friends and crew 7 Avg Club Bright Large Reverb 500 capacity empty club wood floors afternoon sound check 8 Avg Club Dark Large Reverb 500 capacity club wood floors stuffed with people 9 Cnert Hall Brt Large Reverb 5 000 seat Concert hall hard back wall afternoon sound check 10 Cnert Hall Dark Large Reverb 5 000 seat Concert hall SRO at back wall sold out show 11 Stadium Large Reverb _40 000 seat round Stadium afternoon sound check 100 crew amp VIPs only 12 Gated Rev Med Special Reverb Studio Effect Engineer cuts off reverb slightly after each note 220ms Gate 13 Gated Rev Long Special Reverb Studio Effect Engineer lets note ring then cuts it off 50ms Gate 14 Plate Reverb Special Reverb Studio Effect Simulates Steel Plate Reverb 15 Traditional Rev Special Reverb
3. or cut at 800Hz 12 HIGH Adjust the high frequency output level of the Clean channel with this control the center position is 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 20dB of boost or cut at 8kHz 13 LEVEL Set the output volume for the Rhythm channel with this control in the far left position there will be no output as you rotate the control to the right the output level increases GX 40C shown above 14 15 REVERB OVERDRIVE REVERB CLEAN Set the amount of reverberation for the appropriate channel with these controls in the far left position the signal will be dry without any reverb As you rotate the control to the right the amount of rever beration increases GX 40D not shown 14 DSP MODE Select the type of digital sound processing effect with this control Each channel and chorus setting will remember its effect allowing you to switch between channels and chorus on off without having to reset the Mode control 15 DSP LEVEL Adjust the amount of digital signal processing effect with this control in the full left position the signal is dry no reverb effect rotating the control to the right increases the amount of effect 16 INSERT This jack allows you to add a footpedal or mono effect into the amp loop after the tone controls pr
4. ER GX 40C J CHANNEL 1 SELECT CLEAN uw I GAIN LOW MID HIGH LEVELI ge COED ge FLEX WAVE i bo STAGE Bc OVERDRIVE 1 Dej CHANNEL eh OVERDRIVE 1 I pettiness 1 I GAN SHAPE Level am GX 40D i 1 ge 1 I LEVEL i I i MODE l k m i e i e e l HIGH HIGH HIGH HIGH LEVEL LEVEL i OVERDRIVE OVERDRIVE OVERDRIVE BUFFER BUFFER CLEAN CLEAN CLEAN SEND RETURN STEREO EFFECTS LOOP SEND RETURN DEPTH RATE DEPTH RATE DEPTH RATE POWER AMP RIGHT SPEAKER EXTERNAL SPKR JACK leer SPEAKER HEADPHONE LINE OUT EXTERNAL SPKR JACK The GX 40C 40D 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 would damage the finish TE GX 40C 40D Amplifier GX 40C 40D TECHNICAL SPECIFICATIONS Output Power Rating gt 20 watts channel 4 ohms 120VAC Gain Lead Channel 88dB 1kHz Gain Rhythm Channel 60dB 1kHz Equalization Overdrive Channel Equalization Clean Channel Crate s exclusive Shape control Mid Shift switch Low 22dB range 80Hz Mid 14dB range 800Hz High 20dB range 8kHz 1M ohms 64dB Gain Shape 0 Level 10 54dB Gain Level 10 Tones 5 3 volts peak to peak 2 8 Crate Custom Design 4 ohm 120
5. GX 40C GX 40 D AMPLIFIER OWNER S MANUAL Congratulations You are now the proud owner of the versatile and powerful Crate GX 40C 40D amplifier with Stereo Chorus and Digital Sound Processing GX 40D only This amplifi er offers you more features and better sound than virtually any amp in its class True Stereo Chorus A Stereo Effects Loop Stereo Headphones Line Out jack Stereo External Speaker jacks A front panel insert jack to add even more effects Each of the two extraordinary channels have their own Level controls and tones the Overdrive chan nel features separate Gain and Level controls along with Crate s exclusive Shape con trol for quick and precise tone setting plus a Mid Shift switch for even more control over your sound Switch over to the Clean channel with its own separate Gain and Level con trols plus three band EQ for dialing in just the right sounds Like all Crate products your GX 40C 40D 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 And thank you for choosing CRATE E CRATE x01400 Amplifier FRONT PANEL MID HIGH 1 INPUT Connect your guitar here using a shielded instrument cable
6. LE OPERATION IN ORDER TO PRO LONG THE LIFE OF THE UNIT AND PREVENT ACCIDENTAL DAM AGES OR INJURY PLEASE FOL LOW 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 CON NECT ONLY TO A PROPERLY GROUNDED AC POWER OUTLET WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIP MENT TO RAIN OR MOISTURE CAUTION NO USER SERVICE ABLE PARTS INSIDE REFER SER VICING TO QUALIFIED SERVICE PERSONNEL CAUTION 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 DANGEROUS VOLTAGE VOLTAJE PELIGROSO DANGER HAUTE TENSION GEFAHLICHE SPANNUNG s well as improves exi rate manual are subject to change without noti ESTE APARATO HA SIDO DISENADO Y CONSTRUIDO PARA PROVEER ANOS DE OPERACION SEGURA Y CONFI ABLE PARA PROLONGAR LA VIDA DE ESTA UNIDAD E IMPEDIR DANOS ACCI DENTALES POR FAVOR SIGA ESTAS INSTRUCCIONES PREVENTIVAS PRECAUCION PARA DISMINUIR EL RIESGO DE DESCARGAS ELECTRICAS 1 NO ABRA LA CUBIER TA 2 NO ES RECOMENDABLE REMOVER O DESACTIVAR LA PATA DEL POLO A TIERRA DEL CABLE DE CORRIENTE CONECTE CORRECTA MENTE A UNA TOMA DE CORRIENTE A TIERRA ADVERTENCIA PA
7. MMANDE SI L APPAREIL EST UTILISE A UN HAUT NIVEAU DE VOLUME 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 UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN g ones For this reason the o 1997 SLM ELECTRONICS A DIVISION OF ST LOUIS MUSIC 1400 FERGUSON ST LOUIS MO 63133 P N 47 574 03 04 97
8. OVERDRIVE CHANNEL A high gain channel giving you sounds from a slight edge to serious overdrive 2 GAIN Sets the amount of compression and distortion for the Overdrive channel with this control Rotating the control towards the right increases the intensity of overdrive distortion Crate s exclusive Flex Wave circuitry uses Sequential Cascading Gains to deliver distortion which is rich in harmonics and respon sive to your touch Use the Gain control along with the Shape and Level 3 and 5 to create a wide variety of lead sounds 3 SHAPE Quickly dial in just right lead sounds with this con trol which adjusts the shape of the distortion wave producing a wide variety of tone combinations Basically rotating the control towards the left enhances the mid frequencies rotating it towards the right enhances more of the low and high frequencies simultaneously with a myriad of tonal variations in between 4 MID SHIFT Engaging this switch deepens the notch at the clockwise position of the Shape control 3 5 LEVEL Sets the output volume for the Overdrive channel with this control in the far left position there is no output as you rotate the control to the right the output level increases 6 OVERDRIVE CHANNEL LED This LED glows red when the Overdrive channel is selected 7 CHANNEL SELECT Press this switch IN to activate the Overdrive channel press it again to the OUT position for the Clean channel This swit
9. RA EVITAR DESCARGAS EL ECTRICAS O PELI GRO DE INCENDIO NO DEJE ESTE APARATO EXPUESTO A LA LLUVIA O HUMEDAD PRECAUCION NO HAY PIEZAS ADEN TRO QUE EL USUARIO PUEDE REPARAR DEJE TODO MANTENIMIEN TO A LOS TECNICOS CALIFICADOS PRECAUCION NUESTROS AMPLIFI CADORES PUEDEN PRODUCIR NIVE LES DE PRESION DE SONIDO ALTO EXPOSICION CONTINUADA A LOS NIVELES DE PRESION DE SONIDO ALTO PUEDE CAUSA DANO PERMA NENTE A SU OIDO ES ACONSEJADO QUE USE PRECAUCION AL USUARIO Y ES RECOMENDADO PROTECCION PARA LOS OIDOS SI LA UNIDAD ES OPERADA A VOLUMEN ALTO CET EQUIPEMENT AVAIT ETE INVEN TE ET ARRANGE POUR POURVOIR D S ANNEES D USAGE SAUF ET SUR POUR PROLONGER LA VIE DE CET APPAREIL ET POUR EMPECHER LES DOMMAGES ET LES TORTS ACCIDENTELS _ SUJVEZ LES INSTRUCTIONS DE PRECAUTION AVERTISSEMENT POUR REDUIRE LES RISQUES D ELECTRQCUTION 1 N OUVREZ PAS LE CHASSIS 2 NE PAS ESSAYER DE SUPPRIMER LA BROCHE CORRESPONDANT ALA TERRE ATTENTION POUR REDUIRE LES RISQUES D UN FEU OU D ELECTRO CUTION N EXPOSEZ PAS L AP PAREIL A LA PLUIE OU A LA MOI ATTENTION IL N Y A PAS D ELE MENTS REPARABLES DANS L AP PAREIL CONSULTER UN TECHNI CIEN QUALIFIE POUR LES REPARA TIONS ATTENTION NOS AMPLIFICATEURS SONT CAPABLES DE LA PRODUC TION DES NIVEAUX DE SON D UNE HAUTE PRESSION L EXPOSITION CONTINUE AUX CES NIV AUX PEUT CAUSER LA SURDITE PERMA NENTE LA PRUDENCE EST ADVISE A UTILISATEUR ET LA PROTECTION DES OREILLES EST RECO
10. VAC 60Hz 55VA 100 115VAC 50 60Hz 55VA 230VAC 50 60Hz 55VA 15 5 H x 20 75 W x 8 75 D 32 Ibs Input Impedance Signal To Noise Ratio Overdrive Channel Signal To Noise Ratio Clean Channel Maximum Input Signal Level Accepted Internal Speakers Power Requirements Domestic Export Cabinet Size and Weight VORSICHT ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT DEN DECKEL ABENHMEN INTERNE TEILE KONNEN NICHT VOM BENUTZER GEWARTET WERDEN DIE WARTUNG IS QUALIFIZIERTEM CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL PRECAUCION RIESGO DE CORRIENTAZO NO ABRA PRECAUCION 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 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 VORSICHT ELEKTRISCHE SCHLAGGEFAHR NICHT OFFENEN WARTUNGSPERSONAL ZU UBERLASSEN EXPLANATION OF GRAPHICAL SYMBOLS EXPLICACION DE SIMBOLOS GRAFICOS EXPLICATION DES SYMBOLES GRAPHIQUES THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIAB
11. ch can also be used in conjunction with the DSP section 14 and 15 GX 40D only to change your dig ital reverb mode see The DSP Section on the far right panel A footswitch see 26 overrides this control 8 CLEAN CHANNEL LED This LED glows green when the Clean channel is selected CLEAN CHANNEL A normal gain channel designed to give you crystal clear sounds to medium distortion 9 GAIN Set the amount of overdrive to the Clean channel with this control At lower settings the sound will be crystal clear Rotate towards the right to increase the amount of distortion with a fat bluesy sound in the full clockwise position Use the Gain control along with the Tone and Level controls 10 thru 13 to create a wide variety of rhythm sounds 10 LOW Adjust the low frequency output level of the Clean channel with this control turning the control to the left reduces the low frequency output turning it to the right increase the low fre quency output The Low control allows a total range of 22dB of boost or cut at 80Hz Due to the large amounts of low end avail able you may want to roll off the bass at high volume levels 11 MID Adjust the mid frequency output level of the Clean channel 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 right increases the midrange output The Mid control allows a total range of 14dB of boost
12. ed 120 volt 60 cycle AC power outlet DO NOT attempt to defeat the ground connection of this cable If your amplifier was purchased outside of the United States see its rear panel for the proper power rating 23 EXTERNAL SPEAKERS You may connect the outputs of the GX 40C D to your external speakers having a rated impedance of at least 2 ohms each using these jacks When connecting speakers use a matched pair two with the same impedances to insure optimum performance from the amplifier Since these are series conenctions there is no chance of dam aging the amplifier with too small of an inpedacne load 24 STEREO HEADPHONE LINE OUT JACK This dual function stereo jack provides you with a means to connect a pair of stereo headphones for private practice sessions or to obtain a stereo line level output signal to send to a recording console mixing board or to another pair of power amplifiers The internal speakers are muted whenever a plug is inserted into this jack The wiring for the jack is as follows Tip Right channel Ring Left channel Sleeve Common ground WARNING DO NOT attempt to use headphones in the Speaker jacks Permanent hearing damage could result 25 STEREO EFFECTS LOOP Connect the SEND jack to the inputs of your stereo effects device to send a post EQ post chorus pre amplified signal for processing Connect the out puts of the effects device to the RETURN jack to return the processed signal to the a
13. ior to the cho rus and amplifier sections The jack is a stereo 1 4 phone jack wired as follows Tip signal out ring signal in sleeve com mon ground Refer to the illustration on the panel to the right 17 CHORUS ON Activate the Stereo Chorus section by press ing this switch IN press it again to release it to the OUT position to turn the Chorus effect off This switch can also be used in con junction with the DSP section GX 40D only to change your dig ital reverb mode see The DSP Section on the far right panel A footswitch see 26 overrides this control 18 DEPTH Set the intensity of the Stereo Chorus effect with this control in the far left position there will be almost no chorus as you rotate the control to the right the amount of effect increas es 19 RATE Set the speed of the Stereo Chorus effect with this control to the left for slow smooth phasing sounds to the right for faster vibrato sounds 20 ON LED The word ON glows red when you turn the ampli fier on showing you that it is powered up and ready to play 21 POWER SWITCH This heavy duty rocker type switch turns the amplifier ON in the left position OFF in the right position The ON LED 20 works with this switch as a visual indicator CRATE 50 200 Amplifier REAR PANEL 17 AAA 22 23 22 POWER CORD This heavy duty grounded three wire power cord is to be plugged into ONLY a safely wired ground
14. mplifier The jacks are stereo 1 4 phone jacks wired as follows Tip Right channel Ring Left channel Sleeve Common ground 24 25 26 If your effects device has stereo input and output jacks use a pair of three conductor stereo patch cords to connect it If the device has separate left and right jacks use a pair of one stereo male to two mono female Y adapters to make the con nections 26 FOOTSWITCH Plug a dual footswitch such as the Crate model FS 60 here to control channel selection and chorus on off This stereo 1 4 phone jack is wired as follows Tip Channel select Ring Chorus on off Sleeve Common ground Connecting to the Insert jack The Insert jack 16 lets you patch external effects into the ampli fier just prior to its power amp stage Use Crate s CYC6MS stereo to mono Y cord or an adapter such as Crate s CA11Y and 2 1 4 mono signal cables to connect to the effect as shown below Stereo to mono Y cord Y adapter and 2 cables OTIP SEND TPO __ LARING RETURN RING LA to Insert jack SLEEVE GROUND SLEEVE to Insert jack effect INO effect O OUT effect OUT External Effect External Effect CRATE 0 200 Amplifier THE DSP SECTION GX 40D only The DSP s 32 position Mode control allows you to instantly access the exact type of effect you want from classic rever beration to radical backwards sounds for any of the Channel Ch
15. orus combinations The setting of the Mode control will determine the type of effect for whatever Channel Chorus combination the amp is set to at the time you adjust the Mode con trol Once set the GX 40D s non volitale memory retains the setting until you reset it EXAMPLE Plug in your guitar and turn on the amplifi ier Set Channel Select to the Clean channel Now set the Mode con trol to 12 gated reverb medium Strike a chord on your guitar and listen to the sound of the effect Press in the Channel switch to choose the Overdrive channel then set the Mode control to 27 large hard surface echo Strike a chord and listen to the results Now press the Channel switch again to get back to the Clean channel and strike a chord even though you haven t changed the setting of the mode control the amp the effect as you left it THERE S MORE With the Channel Select and ifier remembered that you had programmed in setting 12 and kept Chorus being switchable you can program each of the four Channel Chorus combinations with their own Mode settings If you want to control Reverb on off with the Chorus footswitch for example set the Mode to 0 bypass hit the footswitch and set Mode to 5 large hall bright Now you have the ability to switch the reverb on and off with the footswitch With the footswitch you have a choice of two reverb settings for each of the channel selections for the most
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