Crate Amplifiers Speaker GX 40D User Manual

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  
 
GX-40C+/40D Amplifier  
REAR PANEL:  
EXTERNAL SPEAKERS  
20W RMS PER CHANNEL  
STEREO  
HEADPHONES/  
LINE OUT  
STEREO  
EFFECTS LOOP  
FOOTSWITCH  
2
OHM MIN. LOAD  
TO REDUCE THE  
RISK OF FIRE OR  
ELECTRIC SHOCK,  
DO NOT EXPOSE  
THIS EQUIPMENT  
TO RAIN OR MOIS-  
TURE.  
MODEL: GX-40C+  
SERIAL: GX40C12006902  
CAUTION  
-
RISQUE DE CHOC ELECTRIQUE.  
NE PAS OUVRIR.  
PATENT #5,032,796  
MADE IN THE U.S.A.  
BY SLM ELECTRONICS  
1400 FERGUSON AVE.  
ST. LOUIS, MO 63133  
RISK OF ELECTRIC  
SHOCK DO NOT OPEN  
LINE: 120  
WATTS:  
V
~
60  
Hz  
LEFT  
RIGHT  
RETURN  
SEND  
CHANNEL  
SELECT/  
CHORUS  
MAX  
AVIS:  
22  
23  
24  
25  
26  
22: POWER CORD: This heavy-duty, grounded, three wire If your effects device has stereo input and output jacks, use a  
power cord is to be plugged into ONLY a safely-wired, ground- pair of three-conductor stereo patch cords to connect it. If the  
ed 120 volt 60 cycle AC power outlet. DO NOT attempt to device has separate left and right jacks, use a pair of one-  
defeat the ground connection of this cable! If your amplifier was stereo-male to two-mono-female Y-adapters to make the con-  
purchased outside of the United States, see its rear panel for nections.  
the proper power rating.  
26: FOOTSWITCH: Plug a dual footswitch (such as the Crate  
23: EXTERNAL SPEAKERS: You may connect the outputs of model FS-60) here to control channel selection and chorus  
the GX-40C+/D to your external speakers having  
a
rated on/off. This stereo 1/4” phone jack is wired as follows:  
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.  
Tip: Channel select  
Ring: Chorus on/off  
Sleeve: Common ground  
24: STEREO HEADPHONE  
/
LINE OUT JACK: This dual-  
Connecting to the Insert jack:  
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:  
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.  
Tip: Right channel  
Ring: Left channel  
Stereo-to-mono Y-cord:  
Y-adapter and 2 cables:  
TIP  
SEND  
RETURN  
GROUND  
TIP  
RING  
SLEEVE  
RING  
Sleeve: Common ground  
to Insert jack  
to Insert jack  
SLEEVE  
WARNING: DO NOT attempt to use headphones in the  
Speaker jacks! Permanent hearing damage could result!  
(CYC6MS)  
(CA11Y)  
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 amplifier. The jacks are stereo 1/4”  
phone jacks, wired as follows:  
Ring =  
"Return"  
Tip =  
"Send"  
Tip: Right channel  
Ring: Left channel  
"Return" "Send"  
Sleeve: Common ground  
plug:  
from  
plug:  
to  
from  
effect  
"OUT"  
to  
effect  
"IN"  
effect  
"OUT"  
effect  
"IN"  
External Effect  
External Effect  
 
GX-40C+/40D 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/Chorus 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 amplifier. 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 amplifier “remembered” that you had programmed in setting “12” and kept  
the effect as you left it.  
THERE’S MORE: With the Channel Select and 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 flexibility and  
versatility possible!  
THE DSP SETTINGS:  
#
0
Name  
Type  
None  
Description  
Bypass—no signal processing occurs.  
Off  
1
2
3
4
5
6
7
8
Sm Rm, Bright  
Sm Rm, Dark  
Sm Hall, Bright  
Sm Hall, Dark  
Lg Hall, Bright  
Lg Hall, Dark  
Avg Club, Bright  
Avg Club, Dark  
Cncrt Hall, Brt  
Cncrt Hall, Dark  
Stadium  
Small Reverb  
Small Reverb  
Small Reverb  
Small Reverb  
Large Reverb  
Large Reverb  
Large Reverb  
Large Reverb  
Large Reverb  
Large Reverb  
Large Reverb  
Special Reverb  
8’ x 8’ empty room with hardwood floors.  
8’ x 8’ carpeted room with up to four people.  
20’ x 40’ Rehearsal Hall, wood floors, hard walls.  
20’ x 40’ carpeted Rehearsal Hall with draped walls and up to 30 people.  
50’ x 100’ empty Rehearsal Hall, 20’ ceilings.  
50’ x 100’ Rehearsal Hall with up to 50 friends and crew.  
500 capacity empty club, wood floors, afternoon sound check.  
500 capacity club, wood floors, stuffed with people.  
5,000-seat Concert hall, hard back wall, afternoon sound check.  
5,000-seat Concert hall, SRO at back wall, sold out show.  
40,000-seat round Stadium, afternoon sound check, 100 crew & VIPs only.  
Studio Effect–Engineer cuts off reverb slightly after each note. (220ms Gate)  
Studio Effect—Engineer lets note ring, then cuts it off. (350ms Gate)  
Studio Effect—Simulates Steel Plate Reverb.  
Studio Effect—Simulates old-fashioned multi-spring tube reverb unit.  
125ms delay + small reverb; Elvis’ favorite.  
350ms delay + small reverb; Rockabilly special.  
557ms delay only, 630’ travel time of sound.  
85ms delay with 14.2% regen. & small reverb.  
85ms delay with 27.3% regeneration.  
280ms delay with 21.8% regen & small reverb.  
335ms delay with 12.5% regeneration.  
335ms delay with 26.5% regen. & small reverb.  
335ms delay with 43.7% regeneration.  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
Gated Rev, Med  
Gated Rev, Long Special Reverb  
Plate Reverb  
Special Reverb  
Special Reverb  
Delay  
Delay  
Delay  
Traditional Rev  
Slapback, Short  
Slapback, Med  
Slapback, Long  
Sh Md Surf Echo Echo  
Sh Hd Surf Echo Echo  
Sh/Med Md Surf  
Md Sft Surf Echo Echo  
Md Hd Surf Echo Echo  
Md Glass Echo  
Lg Sft Surf Echo  
Lg Md Surf Echo Echo  
Lg Hd Surf Echo  
Infinite Delay  
Thickener  
Echo  
Echo  
Echo  
485ms delay with 7.8% regeneration.  
485ms delay with 20.3% regeneration.  
Echo  
485ms delay with 39.2% regen & small reverb.  
506ms delay with over 90% regeneration.  
33ms-based sound fattener @ selected freqs.  
Multi-thickener with some subtle delays added.  
“Backwards masking” effect (number nine, number nine,...)  
Special Effect  
Special Effect  
Special Effect  
Special Effect  
Multi-Tap  
Reverse  
 
GX-40C+/40D Amplifier  
SUGGESTED STARTING SETTINGS:  
METAL CRUNCH  
SPARKLING CLEAN  
IN  
out  
DSP MODE AT "30" FOR OVERDRIVE, "23" FOR CLEAN  
HOT SRV WARBLE  
SRV WARBLE  
OUT  
IN  
DSP MODE AT "13", LEVEL AT "8"  
ROCK RHYTHM  
BLUESY ATTACK  
OUT  
IN  
DSP MODE AT "15", LEVEL AT "8"  
SMOOTH LEAD  
WARM CLEAN  
IN  
IN  
DSP MODE AT "27" , LEVEL AT "8"  
SYSTEM BLOCK DIAGRAM:  
POWER  
AMP  
BUFFER  
BUFFER  
GX-40C+:  
SEND RETURN  
INPUT  
CLEAN CHANNEL  
RIGHT  
SPEAKER  
CHANNEL  
SELECT  
CLEAN  
CHORUS  
EXTERNAL  
SPKR JACK  
GAIN LOW MID HIGH LEVEL  
STEREO  
EFFECTS LOOP  
FLEX WAVE  
STAGE  
OVERDRIVE  
CHANNEL  
POWER  
AMP  
BUFFER  
OVERDRIVE  
SEND RETURN  
LEFT  
SPEAKER  
GAIN SHAPE LEVEL  
GX-40D:  
INSERT  
EXTERNAL  
SPKR JACK  
CHANNEL  
SELECT  
DSP  
HEADPHONE/  
LINE OUT  
LEVEL  
SPKR  
COMP  
MODE  
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.  
 
GX-40C+/40D Amplifier  
GX-40C+/40D TECHNICAL SPECIFICATIONS  
Output Power Rating  
>20 watts/channel, 4 ohms, 120VAC  
Gain, Lead Channel  
Gain, Rhythm Channel  
88dB @ 1kHz  
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  
Input Impedance  
1M ohms  
Signal To Noise Ratio, Overdrive Channel  
Signal To Noise Ratio, Clean Channel  
64dB (Gain, Shape @ “0”, Level @ “10”)  
54dB (Gain, Level @ “10”, Tones @ “5”)  
Maximum Input Signal Level Accepted  
Internal Speakers  
3 volts, peak-to-peak  
2 - 8” Crate Custom Design, 4 ohm  
Power Requirements  
Domestic: 120 VAC, 60Hz, 55VA  
Export: 100/115VAC, 50/60Hz, 55VA  
230VAC, 50/60Hz, 55VA  
Cabinet Size and Weight  
15.5” H x 20.75” W x 8.75” D, 32 lbs.  
THIS EQUIPMENT HAS BEEN  
ESTE APARATO HA SIDO DISENADO Y  
CONSTRUIDO PARA PROVEER ANOS  
CET ÉQUIPEMENT AVAIT ÉTÉ INVEN-  
TÉ ET ARRANGÉ POUR POURVOIR  
DES ANNÉES D'USAGE SAUF ET  
SÛR. POUR PROLONGER LA VIE DE  
CET APPAREIL ET POUR EMPÊCHER  
LES DOMMAGES ET LES TORTS  
DESIGNED AND ENGINEERED TO  
PROVIDE SAFE AND RELIABLE  
OPERATION. IN ORDER TO PRO-  
LONG THE LIFE OF THE UNITAND  
PREVENT ACCIDENTAL DAM-  
AGES OR INJURY, PLEASE FOL-  
LOW THESE PRECAUTIONARY  
GUIDELINES:  
CAUTION  
DE OPERACION SEGURA  
Y
CONFI-  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
ABLE. PARA PROLONGAR LA VIDA DE  
ESTAUNIDAD E IMPEDIR DANOS ACCI-  
DENTALES POR FAVOR SIGA ESTAS  
INSTRUCCIONES PREVENTIVAS:  
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,  
DO NOT REMOVE COVER.  
ACCIDENTELS,  
SUIVEZ  
LES  
NO USER-SERVICEABLE PARTS INSIDE.  
INSTRUCTIONS DE PRÉCAUTION.  
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.  
PRECAUCION: PARA DISMINUIR EL  
RIESGO  
DE  
DESCARGAS  
AVERTISSEMENT: POUR RÉDUIRE  
LES RISQUES D'ÉLECTROCUTION:  
(1) N’OUVREZ PAS LE CHÂSSIS, (2)  
NE PAS ESSAYER DE SUPPRIMER  
LA BROCHE CORRESPONDANT À LA  
TERRE.  
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-  
ELECTRICAS: (1) NO ABRA LA CUBIER-  
TA, (2) NO ES RECOMENDABLE  
PRECAUCION  
REMOVER  
O
DESACTIVAR LA PATA  
RIESGO DE CORRIENTAZO  
NO ABRA  
DEL POLO A TIERRA DEL CABLE DE  
CORRIENTE, CONECTE CORRECTA-  
MENTE A UNA TOMA DE CORRIENTE A  
TIERRA.  
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  
NECT ONLY TO  
A
PROPERLY  
ATTENTION: POUR RÉDUIRE LES  
RISQUES D'UN FEU OU D'ÉLECTRO-  
CUTION, N’EXPOSEZ PAS L'AP-  
GROUNDED AC POWER OUTLET.  
WARNING: TO REDUCE THE RISK  
OF FIRE OR ELECTRIC SHOCK,  
DO NOT EXPOSE THIS EQUIP-  
MENT TO RAIN OR MOISTURE.  
ADVERTENCIA:  
PARA  
EVITAR  
PELI-  
DESCARGAS EL ECTRICAS  
O
PAREIL  
TEUR.  
À
LA PLUIE OU  
À
LA MOI-  
GRO DE INCENDIO, NO DEJE ESTE  
APARATO EXPUESTO  
HUMEDAD.  
A
LA LLUVIA  
O
ATTENTION: IL N'Y  
A
PAS D’ÉLÉ-  
ATTENTION  
CAUTION: NO USER-SERVICE-  
ABLE PARTS INSIDE. REFER SER-  
VICING TO QUALIFIED SERVICE  
PERSONNEL.  
MENTS RÉPARABLES DANS L'AP-  
PAREIL. CONSULTER UN TECHNI-  
CIEN QUALIFIÉ POUR LES RÉPARA-  
TIONS.  
RISQUE D'ELECTROCUTION  
NE PAS OUVRIR  
PRECAUCION: NO HAY PIEZAS ADEN-  
TRO QUE EL USUARIO PUEDE  
REPARAR. DEJE TODO MANTENIMIEN-  
TO A LOS TÉCNICOS CALIFICADOS.  
ATTENTION: POUR REDUIRE D'ELECTROCUTION NE PAS  
ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE N'EST REPRABLE  
PAR L'UTILISATEUR. POUR TOUTE REPARATION, S'ADRESSER  
TECHNICIEN QUALIFIE.  
A
UN  
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.  
ATTENTION: NOS AMPLIFICATEURS  
SONT CAPABLES DE LA PRODUC-  
TION DES NIVEAUX DE SON D'UNE  
HAUTE PRESSION. L'EXPOSITION  
CONTINUE AUX CES NIVEAUX PEUT  
CAUSER LA SURDITÉ PERMA-  
NENTE. LA PRUDENCE EST ADVISÉ  
À UTILISATEUR ET LA PROTECTION  
DES OREILLES EST RECOMMANDÉ  
PRECAUCION: NUESTROS AMPLIFI-  
CADORES PUEDEN PRODUCIR NIVE-  
LES DE PRESION DE SONIDO ALTO.  
EXPOSICION CONTINUADA  
A
LOS  
VORSICHT  
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.  
ELEKTRISCHE SCHLAGGEFAHR  
NICHT OFFENEN  
VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT  
DEN DECKEL ABENHMEN. INTERNE TEILE KONNEN NICHT VOM  
BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM  
WARTUNGSPERSONAL ZU UBERLASSEN.  
SI L'APPAREIL EST UTILISÉ  
HAUT NIVEAU DE VOLUME.  
À
UN  
EXPLANATION OF GRAPHICAL SYMBOLS:  
EXPLICACION DE SIMBOLOS GRAFICOS:  
EXPLICATION DES SYMBÔLES GRAPHIQUES:  
"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"  
"DANGEROUS VOLTAGE"  
“VOLTAJE PELIGROSO”  
"DANGER HAUTE TENSION"  
"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.  
©1997 SLM ELECTRONICS, A DIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON, ST. LOUIS, MO. 63133  
P/N 47-574-03 • 04/97  
 

Compaq Computer Hardware 177620 006 User Manual
Crosley Radio CD Player CR2406A User Manual
Custom Brackets Car Speaker CSC2264H User Manual
Dacor Oven EO230 User Manual
Dimension One Spas Hot Tub Venture User Manual
Dynex Power Supply DX PS500W User Manual
Electro Voice Portable Speaker SH 1502 User Manual
Generac Power Systems Portable Generator 004916 0 User Manual
Gitzo Camcorder Accessories G1588 User Manual
Global Machinery Company Air Compressor EAC30 User Manual