Crate Amplifiers CA60 User's Manual
Contents
1. voice coil 4 ohms 50w RMS 95dB 1w Im High efficiency Piezo 110dB 1w 1m Passive type 120VAC 60Hz 60VA 100 115VAC 50 60Hz 60VA 230VAC 50 60Hz 60VA 13 1 2 H x 21 3 16 W x 10 1 4 D 42 lbs On the Front Panel Instrument Chorus Rev Eff Low Mid High Freq Cut Send Depth Rate 0 500H NER y Ly et Ser 123456 7 8 9 10 11 12 13 14 The Instrument channel 1 10 11 12 13 Input The signal output from your acoustic instrument may be con nected here by means of a shielded instrument cable Active Piezo switch Use this switch to select the type of pickup on your instrument For active electronic pickups set the switch to active switch out For passive magnetic pickups set it to piezo switch depressed Shape This switch when depressed serves as a mid cut control adding fullness to the sound of your instrument Gain This serves as the input level control for the instrument channel of the amplifier For the best signal to noise ratio set this control so the Peak LED 5 flashes when playing your instrument fairly hard Peak LED This LED flashes when the signal level into the preamp approaches clipping Adjust the Gain control 4 until a strong signal from your instrument causes this LED to flash Low This serves as the instrument channel s primary bass control Adjust this control to get the best sounding bass2. About the Crate Acoustic CA60 esigned for the performing artist BD CA60 Acoustic Amplifier gives you more of what you want More power More clarity More control And more freedom Imagine microphone quality sound without feedback And without being chained to a mic stand More power twin 30 watt RMS power amplifiers drive a pair of specially designed high fidelity 6 1 4 transducers for plenty of volume and low end punch More clarity a highly efficient Piezo tweet er provides clean crisp highs and a natural midrange blend A tweeter on off switch on the rear panel allows you to deactivate the high frequency driver if desired More control two independent channels each with its own gain and reverb effects controls The Instrument channel features an Active Piezo switch to properly match the pickups of your instrument a Shape switch for a richer sound and a three band rotary EQ An easy to use feedback elimination cir cuit with frequency select and cut controls lets you kill feedback without sacrificing sound quality Plus a footswitchable chorus with depth and rate controls The Vocal Aux channel offers both low and high impedance inputs and allows the use of a rhythm machine background tape or another mic or instrument Still more The master section features a reverb return control and the master level control A footswitch jack on the rear panel provides control for reverb and cho
3. 7 hi z mil chorus o master level E gt q gt T u Aett 30w oz 1 l i effects P gain low high eim crateamps com Electronics of St Louis Music Co 1400 Ferguson Avenue P N 47 941 01 St Louis MO 63133 09 99
4. response for your instrument Excessive boost of the low control can cause an unnatural howling and should be avoided Mid This serves as the instrument channel s primary midrange con trol Adjust this control to get the best projection and midrange tones for your instrument High This serves as the instrument channel s primary treble control Adjust this control so your high notes and harmonic overtones are lively but not overpowering Freq Use this control along with the Cut control 10 to eliminate instrument feedback For information on the proper use of this con trol please read the section entitled To Eliminate Instrument Feedback Cut Use this control along with the Freq control 9 to eliminate instrument feedback For information on the proper use of this con trol please read the section entitled To Eliminate Instrument Feedback Rev Eff send Use this control to adjust the amount of internal reverb and or external effect if used for the instrument channel Chorus On Off switch This switch when depressed applies the internal chorus effect to the instrument channel Chorus Depth Use this control to adjust the magnitude of the chorus effect Rotating this control clockwise increases the intensity of the effect 15 14 Vocal Aux Master Rev Eff ev Return Level Gain Low High Send antom 161718 19 20 21 22 23 24 25 Chorus Rate Use this control to adjust the rate of the choru
5. ION 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 ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT DEN DECKEL ABENHMEN INTERNE TEILE KONNEN NICHT VOM BENUTZER GEWARTET WERDEN DIE WARTUNG IS Ape ee WARTUNGSPERSONAL ZU UBERLASSE THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERATION INORDER 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 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 IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES
6. REFERREZ VOUS AU MANUAL D UTILISATION 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 manual are subject to change without notice Technical Specifications Output Power Rating Internal Amp Inst Channel Low Mid High Shape Input Impedance Input Sensitivity Sens to Eff Send Line out Max Input Signal Feedback Elimination Voc Aux Channel Low High Input Impedance Input Sensitivity Sens to Eff Send Line out Max Input Signal Effects Loop Eff Return to Line Out Sens Eff Return In Impedance Eff Send Out Impedance Line Out Out Impedance Internal Woofers Internal Tweeter Internal Crossover Power Requirements Size and Weight 60 watts RMS total system power 2 x 30 watts RMS 1 THD 15dB 80Hz 15dB 650Hz 15dB 10kHz 25dB 600Hz 25k ohm Active 2 2M ohm Piezo 22mV RMS Active 9mV RMS Piezo 70mV 6v RMS 17v peak to peak Freq variable from 80Hz to 4kHz Cut variable from 0 to 30dB 15dB 80Hz 15dB 10kHz 3k ohm Lo Z 20k ohm Hi Z 3mV RMS Lo Z 15mV RMS Hi Z 9mV Lo Z 50mV Hi Z 10v RMS 28v peak to peak Line Out 1v RMS Line In 1v RMS 50mV 11k ohm 2 2k ohm 220 ohm Lo Z 2 2k ohm Hi Z 2 x 6 1 4 w polypropylene cones rubber surrounds 17 70z magnet 1
7. ootswitch Connect the supplied two button footswitch here for To Eliminate Instrument Feedback remote on off control of the internal reverb and chorus When connect ed the footswitch overrides the front panel chorus on off switch One of the most common problems encountered when amplifying Note This is a STEREO jack tip controls the chorus ring controls the acoustic instruments especially in small environments is feedback reverb sleeve is ground Use only a footswitch equipped with a stereo Acoustic instruments typically have inherent qualities which cause res 1 4 plug onant feedback at specific frequencies Instrument tone controls and 28 Effects Loop Send When using an external signal processor connect sound board equalizers are helpful in getting rid of the problem but this jack to the input of the effect by means of a shielded signal cable they typically operate around relatively wide frequency bands This 29 Effects Loop Return When using an external signal processor connect almost always means the musician must sacrifice sound quality in his this jack to the output of the effect by means of a shielded signal cable quest to do away with feedback But since Crate s feedback elimination 30 Ground Lift This switch when depressed electronically disconnects circuit isolates only the offending frequency instrument feedback from the low Z balanced output jack s chassis ground connection If you expe the CA60 can be eliminated withou
8. primary treble control Adjust this control so the high notes and harmonic overtones are live ly but not overpowering Rev eff send Use this control to adjust the amount of internal reverb and or external effect if used for the vocal aux channel The Master Section 23 24 25 Rev Return Use this control to adjust the amount of internal reverb rotate the control clockwise to increase the effect counter clockwise to decrease it Level Use this control to set the overall output level of the amplifier Power Switch Use this switch to apply power to the amplifier the amp is on when the top of the switch is depressed off when the bot tom of the switch is depressed This switch will illuminate when the amplifier is on On the Rear Panel 33 Line Out Level Use this control to adjust the output level of the line out Effects Foot signal This control works independently from the amplifier s master Loop Switch level control ia MEN M Highz Retum Send Rever 3 Power cord Connect the end of this cord to a suitable source of line volt age Refer to the voltage information on the back of the amplifier for its voltage and current requirements Note This is a grounded plug To avoid the possibility of electric shock DO NOT defeat the ground connection in any way 33 32 31 30 29 28 27 26 26 Tweeter On Off swtich This switch when depressed deactivates the gt CA60 s internal tweeter 27 F
9. rus Level controllable XLR and 1 4 balanced line outs allow you to patch into house sound boards or recording consoles plus an effects loop line in line out setup allows connection of external effects The CA60 was designed evaluated tweaked and redesigned by musicians and music loving engineers Highly sophisticated computer driven assembly machines and highly skilled assemblers use only the finest components to produce each amp Every cabi net is hand built and hand covered by trained craftsmen The final assembled product is tested and played by skilled musician technicians It is only after the amplifier has passed this barrage of picky people that it gets packed up and shipped out The CA60 Acoustic Amplifier Designed to be its best so you can sound your best NES Crate Acoustic amplifiers are Made With Pride in the U S A To get this amplifier to sound its best read this owner s guide prior to its use To keep this amplifier looking its best avoid abrasive cleansers Wipe the cab inet clean using a slightly dampened cloth Never use brass cleaners on the hardware since they could damage their protective coatings CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE Bee OF ELECTRIC SHOCK DO NOT REMOVE COVE NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ATTENTION VORSICHT e D Eee ELEKTRISCHE SCHLAGGEFAHR PAS OUVR NICHT OFFENEN ATTENT
10. s effect Rotating this control clockwise increases the rate at which the effect occurs The Vocal Aux channel 15 16 17 18 19 20 21 22 Low Z input The signal output from a low impedance microphone may be connected here by means of a shielded balanced microphone cable terminated with an XLR connector Hi Z input The signal output from a high impedance microphone or a line level signal may be connected here by means of a shielded sig nal cable terminated with a 1 4 tip sleeve connector Phantom Power switch This switch when depressed applies 15 volts phantom power to pins 2 and 3 of the Low Z input jack 15 for proper operation of microphones requiring phantom power Mics not needing phantom power will not be affected by this switch Chorus On Off switch This switch when depressed applies the internal chorus effect to the vocal aux channel Chorus is only avail able for this channel when the instrument channel s chorus switch 12 is depressed Gain This serves as the input level control for the vocal aux channel of the amplifier Adjust this control for the best mix with the signals from the instrument channel Low This serves as the vocal aux channel s primary bass control Adjust this control to get the best sounding bass response for this channel Excessive boost of the low control can cause an unnatural howling and should be avoided High This serves as the vocal aux channel s
11. t affecting the overall sound rience excessive noise when using the low Z balanced output jack Chances are you may not have a problem with feedback at all In depress this switch that case set the CA60 s Freq and Cut controls fully counter clockwise 31 High Z Bal Use this jack to connect a high impedance line level signal However if you do encounter feedback while playing set the Cut control to a house sound board a recording console or an external power ampli to 30dB fully clockwise and adjust the Freq control until the feedback fier by means of an 1 4 stereo plug terminated cable Ring is signal is gone Reduce the Cut to the 12 o clock position and readjust the Freq tip is signal and sleeve is ground control as needed Continue reducing the Cut control and readjusting the 32 Low Z Bal Use this jack to connect a low impedance line level signal to Freq control until there is no more feedback with the Cut control as far a house sound board a recording console or an external power amplifi counter clockwise as possible This approach effectively eliminates er by means of an XLR terminated cable Pin 1 is ground pin 2 is signal instrument feedback without sacrificing the quality of your sound and pin 3is signal CA60 Block Diagram left right effects line out instrument nnel active piezo phantom high pass power Ser tweeter EH high on offo low z vocal aux input Channel ae 1
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