Crate Amplifiers Music Mixer CMX62 User Manual

User’s Guide  
for the  
CRATE AUDIO  
CMX62  
Stereo Console Mixer  
In order to achieve maximum performance from  
your new Crate Audio Mixer we recommend that  
you read this user’s guide prior to its use.  
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CMX62 Stereo Console Mixer  
Congratulations.  
You have selected one of the finest pieces of Audio Reproduction Equipment available for use on stage,  
in the home studio, or for “institutional” use: a Crate Audio Stereo Console Mixer. In order to derive the  
most benefit from the mixer, and to fully understand and appreciate its flexibility and versatility, please  
familiarize yourself with the mixer by reading through this User’s Guide prior to its use.  
Thank You, from Crate Audio.  
Table of Contents:  
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3  
About This Manual . . . . . . . . . . . . . . . . . . . . . . . . .3  
The Mono Input Channels . . . . . . . . . . . . . . . . . . . .4  
The Stereo Input Channels . . . . . . . . . . . . . . . . . . . .5  
The Master Section . . . . . . . . . . . . . . . . . . . . . . . .6,7  
The Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . .7  
Applications:  
Basic Mono Operation . . . . . . . . . . . . . . . . . . . . .8  
Home Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . .9  
DJ Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10  
House of Worship Installation . . . . . . . . . . . . . . .11  
Separating Vocals and Instruments . . . . . . . . . . . .12  
External Effects and Recorders . . . . . . . . . . . . . . .13  
Equalization Diagrams . . . . . . . . . . . . . . . . . . . . . .14  
Differences in Cable Types . . . . . . . . . . . . . . . . . . .14  
Gain Level Diagram . . . . . . . . . . . . . . . . . . . . . . . .15  
System Block Diagram . . . . . . . . . . . . . . . . . . . . . .15  
Technical Specifications . . . . . . . . . . . . . . .back cover  
CAUTION  
PRECAUCION  
ATTENTION  
VORSICHT  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
RIESGO DE CORRIENTAZO  
NO ABRA  
RISQUE D'ELECTROCUTION  
NE PAS OUVRIR  
ELEKTRISCHE SCHLAGGEFAHR  
NICHT OFFENEN  
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,  
DO NOT REMOVE COVER.  
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: POUR REDUIRE D'ELECTROCUTION NE PAS  
VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT  
DEN DECKEL ABENHMEN. INTERNE TEILE KONNEN NICHT VOM  
BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM  
WARTUNGSPERSONAL ZU UBERLASSEN.  
ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE N'EST REPRABLE  
NO USER-SERVICEABLE PARTS INSIDE.  
PAR L'UTILISATEUR. POUR TOUTE REPARATION, S'ADRESSER  
TECHNICIEN QUALIFIE.  
A
UN  
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.  
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 DAM-  
AGES OR INJURY, PLEASE FOLLOW THESE PRE-  
CAUTIONARY 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 EQUIP-  
MENT TO RAIN OR MOISTURE.  
CAUTION: OUR AMPLIFIERS ARE CAPABLE OF  
PRODUCING HIGH SOUND PRESSURE LEVELS.  
CONTINUED EXPOSURE TO HIGH SOUND PRES-  
SURE LEVELS CAN CAUSE PERMANENT HEAR-  
ING IMPAIRMENT OR LOSS. USER CAUTION IS  
ADVISED AND EAR PROTECTION IS RECOM-  
MENDED IF UNIT IS OPERATED AT HIGH VOLUME.  
CAUTION: NO USER-SERVICEABLE PARTS  
INSIDE. REFER SERVICING TO QUALIFIED SER-  
VICE PERSONNEL.  
ESTE APARATO HA SIDO DISENADO  
Y
CON-  
PRECAUCION: PARA DISMINUIR EL RIESGO DE  
DESCARGAS ELÉLECTRICAS: (1) NO ABRA LA  
CUBIERTA, (2) NO ES RECOMENDABLE  
REMOVER O DESACTIVAR LA PATA DEL POLO A  
TIERRA DEL CABLE DE CORRIENTE, CONECTE  
CORRECTAMENTE A UNA TOMA DE CORRIENTE  
A TIERRA.  
ADVERTENCIA: PARA EVITAR DESCARGAS  
PRECAUCION: NUESTROS AMPLIFICADORES  
PUEDEN PRODUCIR NIVELES DE PRESION DE  
SONIDO ALTO. EXPOSICION CONTINUADA A LOS  
NIVELES DE PRESION DE SONIDO ALTO PUEDE  
STRUIDO PARA PROVEER ANOS DE OPERACION  
SEGURA Y CONFIABLE. PARA PROLONGAR LA  
VIDA DE ESTA UNIDAD E IMPEDIR DANOS ACCI-  
DENTALES POR FAVOR SIGA ESTAS INSTRUC-  
CIONES PREVENTIVAS:  
ELECTRICAS O PELIGRO DE INCENDIO, NO DEJE  
ESTE APARATO EXPUESTO  
HUMEDAD.  
A
LA LLUVIA  
O
CAUSA DANO PERMANENTE  
A
SU OIDO. ES  
PRECAUCION: NO HAY PIEZAS ADENTRO QUE  
EL USUARIO PUEDE REPARAR. DEJE TODO MAN-  
TENIMIENTO A LOS TÉCNICOS CALIFICADOS.  
ACONSEJADO QUE USE PRECAUCION AL  
USUARIO  
Y
ES RECOMENDADO PROTECCION  
PARA LOS OIDOS SI LA UNIDAD ES OPERADA A  
VOLUMEN ALTO.  
THE CHART BELOW SHOWS THE U.S. GOVERNMENT’S OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) REGULATIONS WHICH WERE IN EFFECT AT THE TIME OF THIS PUB-  
LICATION FOR PERMISSIBLE NOISE EXPOSURE, PER 29CFR1910.95, TABLE G-16:  
SOUND LEVEL DBA,  
SLOW RESPONSE  
DURATION PER DAY  
IN HOURS  
SOUND LEVEL DBA,  
SLOW RESPONSE  
DURATION PER DAY  
IN HOURS  
SOUND LEVEL DBA,  
SLOW RESPONSE  
DURATION PER DAY  
IN HOURS  
90  
92  
95  
8
6
4
97  
100  
102  
3
2
105  
110  
115  
1
1/2  
1 - 1 1/2  
1/4 or less  
ACCORDING TO OSHA, ANY EXPOSURE IN EXCESS TO THESE AMOUNTS LISTED ABOVE COULD RESULT IN SOME HEARING LOSS.  
"DANGEROUS VOLTAGE"  
“VOLTAJE PELIGROSO”  
"DANGER HAUTE TENSION"  
"GEFAHLICHE SPANNUNG"  
"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"  
EXPLANATION OF GRAPHICAL SYMBOLS:  
EXPLICACION DE SIMBOLOS GRAFICOS:  
=
=
"UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN"  
2
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CMX62 Stereo Console Mixer  
Introduction:  
In the world of professional sound reinforcement and audio reproduction there is no  
room for compromise. It is absolutely vital that the emotions of a performance are projected  
to your audience, not just sounds. Your new Crate Audio CMX62 Stereo Console Mixer is a  
powerful tool which allows you to successfully bridge the gap between performers and audi-  
ence without losing any of the “life” of the performance in the process. No matter what your  
particular application, your Crate Audio mixer is ready to meet the challenge with a level of  
performance and control unequaled by its competition.  
Crate Audio mixers are the result of our many years of experience with high-performance  
audio equipment combined with our extensive research and development procedures and guid-  
ed by our inherent love of musical performances. Each mixer is built using a variety of innova-  
tive construction methods making it truly reliable and incredibly roadworthy. Its diverse features  
offer you an extremely high degree of versatility and flexibility regardless of application and it is  
designed to keep you constantly in total control of your performing environment, always with  
the best possible sound.  
Features:  
Crate Audio mixers combine the latest technology with contemporary styling and flexible  
features. Exceptionally low noise, incredible headroom and outstanding features make the  
Crate Audio mixer perfect for use on stage, in the home studio, or for “institutional” use. This  
unique mixer offers stereo Tape In and Out jacks with Level controls, switchable Phantom  
Power, a level-controllable Headphones jack, dual 12-step LED ladders with Peak indicators,  
and more. Each of the six mono input channels offers you the choice of balanced XLR Low-Z  
or balanced 1/4" Hi-Z Input jacks, three bands of equalization, a Low Cut switch, a Pan con-  
trol, a pre/post switchable Aux send and an Effects send. Gain controls for each mono channel  
and signal and peak LEDs for all channels allow for optimum signal-to-noise ratios. High-qual-  
ity sliding faders allow smooth and precise control over each channel’s output. Two stereo  
line-level input channels are provided for additional flexibility. Every channel features a Group/  
Main L/R assign switch and a PFL (pre-fader listen) switch for increased versatility and control.  
The stereo channels feature a +4/-10dBv input sensitivity switch to accomodate a wide range of  
input signals.  
The color-coded knobs help you know at a glance if you’re reaching for a Level knob, an  
EQ control, a Pan pot or Master slider.  
These mixers are adaptable for mounting in a standard 19” rack if so desired. Your Crate  
Audio dealer has the optional rack-mount ears for the mixer.  
About this Manual:  
This manual is the compilation of many hours of discussions with engineers, musicians,  
experts in the field of sound reproduction and novices. While we strive to provide as compre-  
hensive and informative a manual as possible, we realize we cannot convey every application  
imaginable or answer every possible question. We have endeavored to cover as much as is  
practical in this owner’s manual and have provided suggested wiring diagrams for you to use  
as a starting point for your application.  
3
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CMX62 Stereo Console Mixer  
The Mono Input Channels (1 – 6):  
1
2
3
MIC IN: An XLR jack for balanced Low-Z mic inputs. When using a condenser mic,  
the Phantom Power switch (#63, rear panel - page 7) must be activated.  
LINE: A Tip/Ring/Sleeve 1/4” jack for balanced Hi-Z mics, instruments, drum machines,  
and similar high impedance line level signals.  
1
INSERT: A Tip/Ring/Sleeve 1/4” jack for adding an external signal processor to the  
channel. The wiring diagram for this jack is shown on page 13. Applications informa-  
tion is shown on pages 8 – 13.  
2
3
4
5
6
7
GAIN: Adjusts the input signal level. Proper setting causes the Peak LED (#13) to flash  
at strong input signals.  
HIGH: Controls the high frequency level for the channel. Allows 15dB @ 12kHz.  
Shelving type.  
MID: Controls the middle frequency level for the channel. Allows 15dB @ 800Hz.  
Bandpass type.  
LOW: This controls the low frequency level for the channel. Allows 15dB @ 70Hz.  
Shelving type.  
Additional EQ information is on page 14.  
4
5
8
9
LOW CUT: Reduces the low frequency output of the channel at a rate of 18dB per  
octave at 75Hz. Active in the up position.  
AUX: Controls the level of the signal sent from the channel to the Aux Out master con-  
trol (#49). Use as a monitor send (Pre/Post switch, #10, in the “Pre” position) or as an  
effects loop send (Pre/Post switch, #10, in the “Post” position).  
6
7
8
10 PRE/POST: The signal sent by the Aux control (#9) can be set to either pre-fader (switch  
in the “Pre” position) or post-fader (switch in the “Post” position).  
9
10  
11 EFF: Controls the level of the signal sent from the channel to the Eff Out master control  
(#50). Use as an effects loop send.  
11  
12 PAN: Divides the signal proportionally between the left and right channels of the Main  
L/R fader (#60) or the Group 1/2 faders (#59), depending on the setting of the Grp / L/R  
switch (#16).  
12  
17  
13  
14  
15  
13 PEAK LED: Illuminates when the input signal level is within 6dB of clipping. Proper set-  
ting of the Gain control (#4) will cause this LED to flash only on strong input signals.  
14 -20dB LED: Illuminates when the input signal level is above -20dBv. This serves as a  
“signal present” LED.  
16  
15 PFL: This switch, when depressed, sends the channel’s signal to the Monitor master  
control (#51). The Output LED Meters (#57) are also switched to monitor this signal,  
which is pre-fader. The PFL LED (#55) illuminates to indicate that the Headphones  
(#39), Monitor (#42) and LED Meters (#57) are now responding to the PFL selection.  
16 GRP / L/R: This switch determines whether the signal is sent to the Group 1/2 master  
faders (#59) or the Main L/R master fader (#60).  
17 FADER: Controls the level of the signal sent to either the Group 1/2 faders (#59) or the  
Main L/R fader (#60), depending on the setting of the Grp / L/R switch (#16).  
4
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CMX62 Stereo Console Mixer  
The Stereo Input Channels (7 – 10):  
18 LEFT/MONO: A Tip/Sleeve 1/4” jack for instruments, drum machines, tape/CD chan-  
nels and similar high impedance signals. For stereo inputs use this jack for the left  
channel input and the Right jack (#19) for the right channel input. For mono inputs  
use this jack only.  
19 RIGHT: A Tip/Sleeve 1/4” jack for instruments, drum machines, tape/CD channels  
and similar high impedance signals. For stereo inputs use this jack for the right chan-  
nel input and the Left/Mono jack (#18) for the left channel input. For mono inputs use  
the Left/Mono jack (#18) only.  
20 HIGH: Controls the high frequency level for the channel. Allows 15dB @ 12kHz.  
Shelving type.  
19  
21 MID: Controls the middle frequency level for the channel. Allows 15dB @ 800Hz.  
Bandpass type  
22 +4/-10 SWITCH: This sets the input sensitivity of the channel to either +4dBv for use  
with professional equipment (such as DAT players, mic preamps, etc.) or -10dBv for  
use with semi-pro equipment (such as tape decks, CD players, etc.).  
23 LOW: This controls the low frequency level for the channel. Allows 15dB @ 70Hz.  
Shelving type.  
20  
Additional EQ information is on page 14.  
24 AUX: Controls the level of the signal sent from the channel to the Aux Out master  
control (#49). Use as a monitor send (Pre/Post switch, #25, in the “Pre” position) or  
as an effects loop send (Pre/Post switch, #25, in the “Post” position).  
22  
25  
21  
25 PRE/POST: The signal sent by the Aux control (#24) can be set to either pre-fader  
23  
(switch in the “Pre” position) or post-fader (switch in the “Post” position).  
26 EFF: Controls the level of the signal sent from the channel to the Eff Out master con-  
24  
26  
trol (#50). Use as an effects loop send.  
27 BAL: Divides the signal proportionally between the left and right channels of the  
Main L/R fader (#60) or the Group 1/2 faders (#59), depending on the setting of the  
Grp / L/R switch (#31).  
28 PEAK LED: Illuminates when the input signal level is within 6dB of clipping. Proper  
setting of the input signal level and the +4/-10 switch (#22) will cause this LED to  
flash only on strong input signals.  
27  
28  
29  
30  
29 -20dB LED: Illuminates when the input signal level is above -20dBv. This serves as a  
“signal present” LED.  
31  
30 PFL: This switch, when depressed, sends the channel’s signal to the Monitor master  
control (#51). The Output LED Meters (#57) are also switched to monitor this signal,  
which is pre-fader. The PFL LED (#55) illuminates to indicate that the Headphones  
(#39), Monitor (#42) and LED Meters (#57) are now responding to the PFL selection.  
32  
31 GRP / L/R: This switch determines whether the signal is sent to the Group 1/2 master  
faders (#59) or the Main L/R master fader (#60).  
32 FADER: Controls the level of the signal sent to either the Main L/R fader (#60) or the  
Group 1/2 faders (#59), depending on the setting of the Grp / L/R switch (#31).  
5
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