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OWNER’S MANUAL

ACL

Protect

ACL

Active

Signal

Signal

Off

Remote

On

Ch A

Ch B

CKV 80 0

Professional Power Amplifier

ACL

Protect

ACL

Active

Signal

Signal

Off

Remote

On

Ch A

Ch B

CKX 500

Professional Power Amplifier

ACL

Protect

ACL

Active

Signal

Signal

Off

Remote

On

Ch A

Ch B

CKS 800

Professional Power Amplifier

POWER PROCESSING

AMPLIFIERS

1
2
3
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Summary of Contents for CKS

Page 1: ...h A Ch B CKV 800 Professional Power Amplifier ACL Protect ACL Active Signal Signal Off Remote On Ch A Ch B CKX 500 Professional Power Amplifier ACL Protect ACL Active Signal Signal Off Remote On Ch A Ch B CKS 800 Professional Power Amplifier POWER PROCESSING AMPLIFIERS ...

Page 2: ...nit is used in an extremely dusty or smoky environ ment the unit should be periodically blown free of foreign matter 14 Do not remove the cover Removing the cover will expose you to potentially dangerous voltages There are no user serviceable parts inside 15 Connecting amplifier outputs to oscilloscopes or other test equipment while the amplifier is in bridged mode may damage both the amplifier an...

Page 3: ...t Bay 7 Module Removal 7 Signal Ground Lift Jumper 8 TourClass Protection Features 9 Sequential Turn On Off 10 Service Information 10 CKS Series Specifications Appendix A CKV Series Specifications Appendix B CKX Series Specifications Appendix C Wire Gauge Charts Appendix D Distributed Constant Voltage Systems Appendix E Power Amplifier Owner s Manual Crest Audio CK Power Processing Amplifiers Page...

Page 4: ...ormers CKX Series models feature transformer isolated outputs for 100V opera tion 50V optional Together these amplifiers cover almost every conceivable installed or distributed sound power requirement By combining legendary Crest performance with three unique plug in module bays located on the rear panel these amplifiers can become very sophisticated audio processors The CK family is everything th...

Page 5: ... essential in non permanent installations like mobile or touring sound systems but recommended for perma nent installations as well Distance from the back of the front rack ear to the center of the rear mounting ear holes is 16 5 8 422mm Because of the cables and connectors on the rear panel a right angle or offset screwdriver or hex key will make it easier to fasten the rear mounting ears to the ...

Page 6: ...a tion see the sections on Signal Ground Lift Jumper Module Removal and Sequential Turn On Turn Off 12 Network Bay The CC BLK blank panel comes standard with all amplifiers See the section on Replacing or Installing a Network Module for more information 13 Input Bay CK Power Processing amplifiers come standard with a CC IPB Input module Barrier strip input connectors and individual channel rotary ...

Page 7: ... powerful single channel amplifier One channel pushes and the other pulls equally effectively quadrupling the power over that of either channel alone Signal is connected to the input barrier strip as shown in the drawing below with one jumper connecting the pos itive terminal of Input A to the negative terminal of Input B and another jumper connecting the negative terminal of Input A to the positi...

Page 8: ...he diagram below shows the location of these jumpers All jumpers must be set to the same position as indicated in the drawing below To change jumper settings the Input module must first be removed from the amplifier chassis This opera tion is covered in the section Module Removal Replacement N Coder Setup Jumpers All NC Modules have internal jumpers used to set the module for operation with NexSys...

Page 9: ...rvice technician should remove top cover The amplifier must be switched off and the mains plug removed from the supply before module removal operation is undertaken Removing or Replacing an Input Module The amplifier must be switched off and unplugged from the mains supply before this operation is undertaken Remove the four 8 3 8 Phillips pan head sheet metal screws that secure the module to the c...

Page 10: ...the amplifier Com Out In 8 to 18VDC 240 mA Model CC STL NEC CLASS 2 ONLY A B Signal Ground Lift Jumper Signal Ground Lift Jumper Model NC NXS Hi Data Lo Network Address 0 8 1 9 2 A 3 B 4 C 5 D 6 E 7 F 0 8 1 9 2 A 3 B 4 C 5 D 6 E 7 F Model Name CKS 100 CKS 200 CKS 400 CKS 800 CKS 800 2 CKS 1200 2 CKS 1600 2 Output Power 8Ω Ch 50W 100W 200W 400W 400W 600W 800W Crest Audio Inc 100 Eisenhower Dr Param...

Page 11: ...y will open If NexSys con trol is installed IGM operation is reported to NexSys AutoRamp Protection AutoRamp operates every time the amplifier is turned on or is reacti vated after a protect condition This exclusive Crest feature gradually increases gain to the attenuator setting after the output relays close avoiding unnecessary stress on the loudspeakers Thermal Protection If the heatsink temper...

Page 12: ... amplifiers Manual or NexSys Compatible Sequential Turn On Turn Off Wiring CK Power Processing amplifiers fitted with a NexSys compatible NC Power Output Module NC STI NC SAC NC SLM may be powered up via NexSys OR with a manual switch closure If NexSys is employed the STO delay time is also software controllable Note when using NexSys control hard wiring for manual switch closure between amplifier...

Page 13: ...Appendices ...

Page 14: ...26 42 kg 58 20 lbs 26 42 kg 78 65 lbs 35 39 kg 78 65 lbs 35 39 kg 26 63 lbs 12 09 kg 29 44 lbs 13 37 kg 30 44 lbs 13 82 kg 50 20 lbs 22 80 kg 50 20 lbs 22 80 kg 70 65 lbs 32 08 kg 70 65 lbs 32 08 kg 5 Years USA Canada United Kingdom and many other countries 8Ω Stereo Power 20Hz 20kHz 0 1 THD N 8Ω Stereo Power 1kHz 0 01 THD N 4Ω Stereo Power 20Hz 20kHz 0 1 THD N 4Ω Stereo Power 1kHz 0 01 THD N 2Ω S...

Page 15: ...lbs 13 92 kg 50 20 lbs 22 80 kg 70 65 lbs 32 08 kg 70 65 lbs 32 08 kg 5 Years USA Canada United Kingdom and many other countries Output Power 70 7 Volt Max RMS Output Voltage each channel Peak Output Voltage each channel Frequency Response 0 0 3dB 1W 70 7V Power Bandwidth full power 1 THD N TourClass Protection THD N rated power 1kHz SMPTE IMD rated power 60Hz 7kHz Input CMRR 1kHz Input Sensitivit...

Page 16: ...g 35 0 lbs 15 91 kg 35 0 lbs 15 91 kg 57 0 lbs 25 91 kg Output Power 100 volt 50 or 70 7 volt option 40Hz 20kHz 0 1 THD N Max RMS Output Voltage each channel Peak Output Voltage each channel Frequency Response 1W 100V Power Bandwidth rated power 1 THD N TourClass Protection THD N rated power 1kHz SMPTE IMD rated power 60Hz 7kHz Input CMRR 1kHz Input Sensitivity rated power Voltage Gain Input Imped...

Page 17: ... 2 9 1 74 1 09 Power Loss 2 ohm load 10 8 6 7 4 5 2 3 1 39 0 87 15 5 10 8 5 6 3 4 2 2 1 45 28 19 9 10 8 6 7 4 3 2 9 Stranded Cable Lgth ft 5 10 40 80 Wire Gauge AWG 18 16 14 12 10 18 16 14 12 10 18 16 14 12 10 8 18 16 14 12 10 8 Power Loss 8 ohm load 0 81 0 51 0 32 0 20 0 128 1 61 1 02 0 64 0 40 0 25 6 2 4 0 2 5 1 60 1 01 0 60 11 9 7 7 5 0 3 2 2 0 1 20 Power Loss 4 ohm load 1 61 1 02 0 64 0 40 0 2...

Page 18: ...ated for trans former insertion loss P X xfrmr 1 P speaker 1 X xfrmr 2 P speaker 2 and V is the distributed line voltage So for a 70 7 volt line Z 70 7 2 P Z 5000 P For example if the total power demanded by the speakers is 200 watts then V2 P 25 The compensation factor for transformer insertion loss is x power drawn from distributed line power delivered to speaker 10 Insertion loss in dB 10 There...

Page 19: ...Crest Audio CK Power Processing Amplifiers ...

Page 20: ...Power is serious business v 1 9 11 26 97 1997 Crest Audio Inc Crest Audio Inc 100 Eisenhower Dr Paramus NJ 07652 USA TEL 201 909 8700 FAX 201 909 8744 http www crestaudio com Printed in USA C1000020 ...

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