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CSL Series  Power Amplifiers

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CONTENTS

1 Welcome ....................................................................... 5

1.1 Unpacking ............................................................. 5
1.2 Features ................................................................ 5

2 Installation .................................................................... 6

2.1 Stereo .................................................................... 6
2.2 Mono ..................................................................... 6
2.3 Input Sensitivity Adjustment ................................... 8
2.4 Additional Load Protection ..................................... 8

3 Operation ..................................................................... 9

3.1 Precautions ............................................................ 9
3.2 Indicators .............................................................. 9
3.3 Protection Systems ................................................ 9

3.3.1

ODEP .......................................................... 9

3.3.2 Ultrasonic and RF Protection ....................... 9
3.3.3 Drive Protection ........................................... 9
3.3.4 Transformer Thermal Protection ................... 9
3.3.5 Fuses and Circuit Breakers ........................ 10

3.4 Controls ............................................................... 10
3.5 Filter Cleaning ...................................................... 10

4 Specifications ............................................................ 11

5 Accessories ............................................................... 17

5.1 MT-XLR ................................................................ 17
5.2 MT-BB .................................................................. 17

6 Service ....................................................................... 18

6.1 Worldwide Service ............................................... 18
6.2 North American Service ....................................... 18

6.2.1 Service at a N. American Service Center ... 18
6.2.2 Factory Service ......................................... 18

Summary of Contents for 1400 CSL

Page 1: ... WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE MODEL 800 CSL AC VOLTS 120 MAXIMUM OUTPUT 230 WATTS PER CHANNEL INTO 4 OHMS AT 1 KHz WITH NO MORE THAN 0 1 THD 11 5 AMPS 60 Hz INTERNATIONAL INC ELECTRONIC EQUIPMENT ELKHART IN 46517 MADE IN U S A SERIAL NUMBER 0000 000000 CAUTION THIS COVER IS NECESSARY FOR EFFICIENT COOLING OF THE AMPLIFIER REM...

Page 2: ...OWN WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE No action to enforce this Crown Warranty shall be commenced later than ninety 90 days after expiration of the warranty period THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERS CONTAINED IN THIS MANUAL FOR CROWN PRODUCTS 9 90 WORLDWIDE SUMMARY OF WARRANTY The Crown Audio Division of Crown Inter...

Page 3: ...ntenance instructions WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE Magnetic Field CAUTION Donotlocatesensitivehigh gainequip ment such as preamplifiers or tape decks directly above or below the unit Because this amplifier has a high power density it has a strong magnetic field which can induce hum into unshielded devices that are located nearby The ...

Page 4: ... Indicators 9 3 3 Protection Systems 9 3 3 1 ODEP 9 3 3 2 Ultrasonic and RF Protection 9 3 3 3 Drive Protection 9 3 3 4 Transformer Thermal Protection 9 3 3 5 Fuses and Circuit Breakers 10 3 4 Controls 10 3 5 Filter Cleaning 10 4 Specifications 11 5 Accessories 17 5 1 MT XLR 17 5 2 MT BB 17 6 Service 18 6 1 Worldwide Service 18 6 2 North American Service 18 6 2 1 Service at a N American Service Ce...

Page 5: ... is your official proof of purchase 1 2 Features Rugged professional power amplifier mounts in a stan dard 19 inch 48 3 cm equipment rack Front panel power switch with turn on delay for loud speaker protection Full uncolored power with any reasonable load Patented Output Device Emulation Protection ODEP keeps the amplifier working when others would fail High damping factor provides superior contro...

Page 6: ...ono mode is provided for loads with an im pedance greater than 4 ohms Parallel Mono mode should be used with loads of 4 ohms or less B R I D G E M O N O 1 Turn the level controls down fully counterclockwise and turn off the amplifier 2 Set the back panel stereo mono switch to Bridge Mono 3 If present remove the Parallel Mono jumper 4 Connect the input and output cables as shown in the second examp...

Page 7: ...CSL Series Power Amplifiers Page 7 Fig 2 3 Three System Connection Methods ...

Page 8: ...s can generate enormous power it may be desirable to protect loudspeakers from damage due to excessive power A common way to do this is to put a fuse in series with the load This may be accomplished with a single fuse to protect the entire system or by fusing each driver separately Use Figure 2 4 to find the correct fuse Example A Choose the peak music power for the loudspeaker such as 75 watts B ...

Page 9: ... name describes what it does Output Device Emulation Protection or ODEP In essence ODEP compares transistor conditions to their known SOA If more power will be asked of them than they can deliver with the present conditions ODEP limits the drive until conditions fall within the SOA Lim iting is proportional and kept to an absolute minimum only what is required to prevent output transistor damage U...

Page 10: ... nal fuse blows please refer the unit to a qualified technician If the breaker in a 1400 CSL trips try to iden tify and correct the problem before resetting the breaker with the back panel reset switch If the problem per sists refer the unit to a qualified technician 3 4 Controls The enable switch is located on the front panel so you can easily turn the amplifier on and off When making any setup o...

Page 11: ...input sensitivity of 26 dB unless otherwise specified Standard 1 kHz Power refers to maximum average power in watts at 1 kHz with 0 1 THD Full Bandwidth Power refers to maximum average power in watts from 20 Hz to 20 kHz with 0 1 THD 120 VAC 60 Hz Units refers to amplifiers with dedicated trans formers for 120 VAC 60 Hz power mains International Units refers to amplifiers with special multi tap tr...

Page 12: ... Channel 2 should not be used Protection CSL series amplifiers are protected against shorted open or mismatched loads overloaded power sup plies excessive temperature chain destruction phe nomena input overload damage and high frequency blowups They also protect loudspeakers from input and output DC as well as providing protection from turn on turn off transients If operating conditions are unreas...

Page 13: ... used in the real world without a clipped output signal Many manufacturers publish power specs with a tolerance of 1 dB or worse This means their amplifier can deviate more than 20 in output A 100 watt amplifier would meet their specification if it only produced 79 4 watts Other manufacturers qualify their specs by saying they are typical subject to manufacturing tolerances single channel driven o...

Page 14: ...0 4 2 8 International Units Bridge Mono balanced output Parallel Mono Stereo both channels driven Fig 4 3 1400 CSL Minimum Power Matrix 8 1400 CSL Minimum Guaranteed Power Watts Stereo Mono Mode Stereo both channels driven Bridge Mono balanced output Parallel Mono 16 4 FTC Continuous Average 0 1 THD N See note 4 1 kHz 20Hz 20kHz 480 970 500 1 040 1 050 Maximum Average Load Ohms AC Mains 120 VAC 60...

Page 15: ...THD of less than 1 0 and an ambient room temperature of 70 F 21 C International units with multi tap transformers are specified for the best case transformer tap normally 240 VAC 60 Hz Although it is an unusual condi tion your amplifier can function well with AC mains voltages up to 10 over the specified line voltage With overvoltage conditions your amplifier may be capable of delivering instantan...

Page 16: ...5 750 1 065 750 7 kHz 520 395 1 125 780 1 120 775 565 395 1 120 785 1 110 775 Stereo both channels driven Stereo both channels driven 8 1400 CSL Maximum Power Watts Stereo Mono Mode Bridge Mono balanced output Parallel Mono 16 4 Single Cycle Tone Burst Load Ohms AC Mains 120 VAC 6 0 Hz Units 0 05 Distortion Noise See note 1 50 Hz 1 090 715 2 155 1 415 2 140 1 420 4 2 8 8 16 4 1 190 785 2 355 1 540...

Page 17: ...ut signal from one amplifier to an other Because the MT XLR connectors are in parallel with the amplifier s built in phone connectors an input signal fed to either input can be fed to another amplifier from the unused connector for that channel 5 2 MT BB The MT BB is an accessory panel that provides barrier strip input connectors An MT BB accessory might be desirable in applications requiring bare...

Page 18: ...defective unit to the Crown factory For warranty service we will pay for ground shipping both ways in the United States after receiving copies of the shipping receipts Shipments should be sent UPS ground If the unit is under warranty you may send it C O D for the cost of freight via UPS ground The fac tory will return it via UPS ground Please contact us if other arrangements are required shipping ...

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