csl series reference manual 125168 original

7/25/2019 CSL Series Reference Manual 125168 Original

1/19

POWER

OFF

OFF

POWER

UNBALANCEDINPUTWIRING

BALANCEDINPUTWIRINGREG. U.S. PAT. OFF.

3,808,5454,330,8094,611,180

+

TIP

RING

SLEEVEGND

+ TIP

SLEEVEGND

CAUTION:TURNOFF AMPLIFIERBEFORECHANGINGTHIS SWITCH!

STEREO

BRIDGEMONO

PARALLELMONO

BRIDGE-MONOWIRINGTURNAMPLIFIER OFF.

SETSTEREO/MONOSWITCHTOBRIDGE-MONO.

OUTPUTACROSSREDTERMINALSONLY. (CH-1IS POSITIVE.)

PARALLEL-MONOWIRINGTURNAMPLIFIER OFF.

SETSTEREO/MONOSWITCHTOPARALLEL-MONO.

ADDJUMPER (14GAGEOR LARGER)ACROSS REDTERMINALS.

OUTPUTACROSS CH-1TERMINALS ONLY.

1

2

3

4

1

2

3

CH-2 CH-1

+

+CH-2

(MONO)INPUTGAIN

CH-1

INPUT GAIN

CLASS 2OUTPUTWIRING

REQUIRED.

OUTPUTS

CAUTION: TOPREVENT ELECTRICSHOCK DONOTREMOVETOP OR BOTTOMCOVERS.NOUSER SERVICEABLEPARTSINSIDE.REFER SERVICINGTOQUALIFIEDSERVICEPERSONNEL.DISCONNECTPOWERCORDBEFOREREMOVINGREAR P.I.P.MODULETOACCESS SENSITIVITY SWITCH.

ATTENTION: DBRANCHER AVANTD'OUVRIR.

WARNING: TOREDUCETHERISK OFFIREOR ELECTRICSHOCK,DONOT EXPOSETHIS EQUIPMENTTORAINOR MOISTURE.

MODEL 800CSL

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.

ELECTRONICEQUIPMENT

ELKHART,IN46517MADEINU.S.A.

SERIALNUMBER

0000

000000

CAUTION:THIS COVER IS NECESSARY FOREFFICIENT COOLING OF THE AMPLIFIER.REMOVE ONLY TO ACCESS GAIN SWITCH.

01

2

3

45 6 7

8

9

10

1112 0

1

2

3

45 6 7

8

9

10

1112

INPUT GROUNDLIFT

(AFFECTS PHONEINPUTS ONLY.)

LIFT

Models: 460, 800, 1400 CSLSome models may be exported under the name Amcron.

125168-1

8/97

1997 by C row n International, Inc., P.O . B ox 1000, Elkha rt, IN 46515-1000 U .S.A . Telep hone: 219-294-

8000. Fax: 219-294-8329. C SL series am plifiers are p rod uced by the Professional A ud io D ivision of C row nInternational, Inc. Tradem ark N otice:Am cron, C row n, C SL, and O D E P are reg istered trad em arks of

C row n International, Inc. O the r trad em arks are the p rop erty of their respective ow ners.

120 VAC NorthAmerican

Units Only:

CommercialAudio

E106377

Approved for

THXTheatreSystems


2/19

NORTH AMERICA

SUMMARY OF WARRANTYThe Crown Audio Division of Crown International, Inc., 1718 West MishawakaRoad, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINALPURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown prod-uct, for a period of three (3) years from the date of purchase by the originalpurchaser (the warranty period) that the new Crown product is free of defectsin materials and workmanship. We further warrant the new Crown productregardless of the reason for failure, except as excluded in this Warranty.

ITEMS EXCLUDED FROM THIS CROWN WARRANTYThis Crown Warranty is in effect only for failure of a new Crown product whichoccurred within the Warranty Period. It does not cover any product which hasbeen damaged because of any intentional misuse, accident, negligence, or losswhich is covered under any of your insurance contracts. This Crown Warrantyalso does not extend to the new Crown product if the serial number has beendefaced, altered, or removed.

WHAT THE WARRANTOR WILL DOWe will remedy any defect, regardless of the reason for failure (except asexcluded), by repair, replacement, or refund. We may not elect refund unlessyou agree, or unless we are unable to provide replacement, and repair is notpractical or cannot be timely made. If a refund is elected, then you must makethe defective or malfunctioning product available to us free and clear of all liensor other encumbrances. The refund will be equal to the actual purchase price,not including interest, insurance, closing costs, and other finance charges lessa reasonable depreciation on the product from the date of original purchase.Warranty work can only be performed at our authorized service centers or at thefactory. We will remedy the defect and ship the product from the service centeror our factory within a reasonable time after receipt of the defective product atour authorized service center or our factory. All expenses in remedying thedefect, including surface shipping costs in the United States, will be borne by us.(You must bear the expense of shipping the product between any foreigncountry and the port of entry in the United States and all taxes, duties, and othercustoms fees for such foreign shipments.)

HOW TO OBTAIN WARRANTY SERVICE

You must notify us of your need for warranty service not later than ninety (90)days after expiration of the warranty period. All components must be shipped ina factory pack, which, if needed, may be obtained from us free of charge.Corrective action will be taken within a reasonable time of the date of receipt ofthe defective product by us or our authorized service center. If the repairs madeby us or our authorized service center are not satisfactory, notify us or ourauthorized service center immediately.

DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGESYOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTALDAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWNPRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCT ORPRODUCTS RESULTING FROM SUCH A DEFECT.SOME STATES DO NOTALLOW THE EXCLUSION OR LIMITATIONS OF INCIDENTAL ORCONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OREXCLUSION MAY NOT APPLY TO YOU.

WARRANTY ALTERATIONSNo person has the authority to enlarge, amend, or modify this Crown Warranty.This Crown Warranty is not extended by the length of time which you are

deprived of the use of the new Crown product. Repairs and replacement partsprovided under the terms of this Crown Warranty shall carry only the unexpiredportion of this Crown Warranty.

DESIGN CHANGESWe reserve the right to change the design of any product from time to timewithout notice and with no obligation to make corresponding changes inproducts previously manufactured.

LEGAL REMEDIES OF PURCHASERTHIS CROWN WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, YOUMAY 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 OTHERSCONTAINED IN THIS MANUAL FOR CROWN PRODUCTS.

9/90

WORLDWIDE

SUMMARY OF WARRANTYThe Crown Audio Division of Crown International, Inc., 1718 WestMishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you,the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of eachNEW Crown1product, for a period of three (3) years from the date ofpurchase by the original purchaser (the warranty period) that the newCrown product is free of defects in materials and workmanship, and wefurther warrant the new Crown product regardless of the reason for failure,except as excluded in this Crown Warranty.

1 Note: If your unit bears the name Amcron,please substitute it for thename Crownin this warranty.

ITEMS EXCLUDED FROM THIS CROWN WARRANTYThis Crown Warranty is in effect only for failure of a new Crown productwhich occurred within the Warranty Period. It does not cover any product

which has been damaged because of any intentional misuse, accident,negligence, or loss which is covered under any of your insurancecontracts. This Crown Warranty also does not extend to the new Crownproduct if the serial number has been defaced, altered, or removed.

WHAT THE WARRANTOR WILL DOWe will remedy any defect, regardless of the reason for failure (except asexcluded), by repair, replacement, or refund. We may not elect refundunless you agree, or unless we are unable to provide replacement, andrepair is not practical or cannot be timely made. If a refund is elected, thenyou must make the defective or malfunctioning product available to us freeand clear of all liens or other encumbrances. The refund will be equal tothe actual purchase price, not including interest, insurance, closing costs,and other finance charges less a reasonable depreciation on the productfrom the date of original purchase. Warranty work can only be performedat our authorized service centers. We will remedy the defect and ship theproduct from the service center within a reasonable time after receipt of thedefective product at our authorized service center.

HOW TO OBTAIN WARRANTY SERVICEYou must notify us of your need for warranty service not later than ninety(90) days after expiration of the warranty period. All components must beshipped in a factory pack. Corrective action will be taken within areasonable time of the date of receipt of the defective product by ourauthorized service center. If the repairs made by our authorized servicecenter are not satisfactory, notify our authorized service centerimmediately.

DISCLAIMER OF CONSEQUENTIAL AND INCIDENTAL DAMAGESYOU ARE NOT ENTITLED TO RECOVER FROM US ANY INCIDENTALDAMAGES RESULTING FROM ANY DEFECT IN THE NEW CROWNPRODUCT. THIS INCLUDES ANY DAMAGE TO ANOTHER PRODUCTOR PRODUCTS RESULTING FROM SUCH A DEFECT.

WARRANTY ALTERATIONSNo person has the authority to enlarge, amend, or modify this CrownWarranty. This Crown Warranty is not extended by the length of time whichyou are deprived of the use of the new Crown product. Repairs andreplacement parts provided under the terms of this Crown Warranty shallcarry only the unexpired portion of this Crown Warranty.

DESIGN CHANGESWe reserve the right to change the design of any product from time to timewithout notice and with no obligation to make corresponding changes inproducts previously manufactured.

LEGAL REMEDIES OF PURCHASERNo action to enforce this Crown Warranty shall be commenced later thanninety (90) days after expiration of the warranty period.

THIS STATEMENT OF WARRANTY SUPERSEDES ANY OTHERSCONTAINED IN THIS MANUAL FOR CROWN PRODUCTS.

9/90

Telephone: 219-294-8200. Facsimile: 219-294-8301Telephone: 219-294-8200. Facsimi le: 219-294-8301

THREE YEAR

FULL WARRANTY YEAR3YEAR3


3/19

The inform ation furnished in this m anual does not include all of the details of design, production, or variations of the

equipm ent. N or does it cover every possible situation w hich m ay arise during installation, operation or m ainte-

nance. If your unit bears the nam e Am cron,please substitute it for the nam e C row nin this m anual. If you need

special assistance beyond the scope of this m anual, please contact our Technical Sup port G roup.

Crown Audio Division Technical Support GroupPlant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.

Phone: 800-342-6939(North America, Puerto Rico and Virgin Islands) or 219-294-8200Fax: 219-294-8301 Fax Back (North America only): 800-294-4094 or 219-293-9200

Fax Back (International): 219-294-8100 Internet: http://www.crownintl.com

Printed onrecycled paper.

The lightning bolttriangle is used toalert the user to therisk of electric shock.

The exclamation pointtriangle is used to alert theuser to important operatingor maintenance instructions.

WARNINGTO REDUCE THE RISK OF ELECTRIC

SHOCK, DO NOT EXPOSE THISEQUIPMENT TO RAIN OR MOISTURE!

Magnetic FieldCAUTION! Do not locate sensitive high-gain equip-ment such as preamplifiers or tape decks directlyabove or below the unit.B ecause this am plifier hasa high p ow er density, it ha s a strong m ag ne tic fieldw hich c an ind uce hum into un shielded devices that

are located nearby. Th e field is strongest just ab oveand below the unit.

If an eq uipm ent rack is used , w e recom m end locat-

ing the am plifier(s) in the bottom of the rack and theprea m plifier or other sensitive eq uipm en t at the top .

C A U T I O NRISK OF ELECTRIC SHOCK

DO NOT OPEN

TO PREVENT ELECTRIC SHOCK DONOT REMOVE TOP OR BOTTOM

COVERS. NO USER SERVICEABLEPARTS INSIDE. REFER SERVICINGTO QUALIFIED SERVICE PERSON-NEL. DISCONNECT POWER CORDBEFORE REMOVING BACK PANELCOVER TO ACCESS GAIN SWITCH.

A V I SRISQUE DE CHOC LECTRIQUE

NOUVREZ PAS

PRVENIR LE CHOC LECTRIQUENENLEVEZ PAS LES COUVERCLES. ILNY A PAS DES PARTIES SERVICEABLE

LINTRIEUR. TOUS REPARATIONSDOIT ETRE FAIRE PAR PERSONNEL

QUALIFI SEULMENT. DBRANCHERLA BORNE AVANT DENLEVER LA

COVERTURE EN ARRIRE.


4/19

CSL Series Power Amplifiers

Page 4

CONTENTS

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

1.1 U npacking .............................................................5

1.2 Features ................................................................5

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

2.1 Stereo ....................................................................6

2.2 M ono .....................................................................6

2.3 Input Sensitivity A djustm ent...................................82.4 Additional Load Protection .....................................8

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

3.1 Precautions............................................................9

3.2 Indicators ..............................................................9

3.3 Protection System s ................................................9

3.3.1 O D EP ..........................................................9

3.3.2 U ltrasonic and RF Protection .......................9

3.3.3 D rive Protection ...........................................9

3.3.4 Transform er Therm al Protection ...................9

3.3.5 Fuses and C ircuit Breakers........................10

3.4 C ontrols ...............................................................10

3.5 Filter C leaning ......................................................10

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

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

5.1 M T-XLR ................................................................17

5.2 M T-BB ..................................................................17

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

6.1 W orldw ide Service ...............................................18

6.2 N orth Am erican Service .......................................18

6.2.1 Service at a N . A m erican Service C enter...18

6.2.2 Factory Service .........................................18


5/19


Page 5

1. 1 UnpackingPlease unp ack and insp ect your new am plifier for any

dam age that m ay have occurred during transit. If dam -

ag e is found , notify the transportation com pany im m e-

diately. O nly you m ay initiate a claim w ith the carrier for

dam age resulting during shipm ent. Even if the unit ar-

rived in perfect condition, as m ost do, save all packing

m aterials so you w ill have them if you ever need to trans-

port the unit. N EVER SH IP TH E U N IT W ITH O U T TH E

FAC TO RY PAC K.

1 WelcomeC ongratulations on your purchase of a C row n C SL

am plifier.C SLam plifiers are com pact, professional ste-

reo pow er am plifiers engineered to m eet the m ost de-

m anding sound reinforcem ent need s. They com pare

very favorably to m ore expensive am plifiers, providinguncolored sound and signal-to-noise ratios m ore com -

m only associated w ith recording studios.

This m anual w ill help you successfully install and use

your am plifierw e strong ly recom m end you read all

instructions, w arnings and cautions. If you plan to oper-

ate in one of the tw o m ono m odes, be sure to read the

M ono section. Also for your protection, please save

your bill of sale as it is your official proof of purchase.

1.2 Features Rug ged , professional pow er am plifier m ounts in a stan-

dard 19 inch (48.3 cm ) equipm ent rack.

Front panel pow er sw itch w ith turn-on d elay for loud-

speaker protection.

Full, uncolored pow er w ith any reasonab le load.

Patented O utput D evice Em ulation Protection (O D E P )

keep s the am plifier w orking w hen others w ould fail.

H igh d am ping factor provides superior control over low -

freq uency d rivers for a clean, accurate low end.

Safe w ith any load. B ridge-M ono and Parallel-M ono

m od es offer optim al load-m atching perform ance.

C om plete protection ag ainst shorted outputs, m is-

m atched loads, overheating , D C inp ut/output and high-

frequency overload; full internal fault protection.

B alanced phone jack inputs w ith internal three-posi-

tion sensitivity sw itch. O ptional XLR or barrier block

input connectors are available w ith the M T-XLRand

M T-B Baccessories.

G round lift sw itch helps p reventground loopsby iso-

lating the chassis from the phone inp ut ground s.

Efficient heat sinks and self-contained forced air cool-

ing system dissipate heat quickly and evenly for extra

am plifier protection and greater pow er output.

Three year N o-Faultfull w arranty and guaranteed

specifications protect your investm ent.

OFF

POWER

EnableSwitch

EnableIndicator

Removable Grilleand Dust Filter

Fig. 1.1 1400 C SL Front and B ack P anels


6/19


Page 6

2 InstallationAlw ays rem ove pow er from the unit and turn the level

controls off w hen m aking connections. This reduces the

chance of loudspeaker dam age from loud blasts.Follow the guidelines listed next as w ell as the steps

required for the specific m ode of operation:

1. Install the am plifier in a standard 19 inch (48.3 cm ) rack

or place it on a stab le surface. The m ounting dim ensions

are 19 inches (48.3 cm ) w ide, 3.5 inches (8.9 cm ) tall

and 16 inches (40.6 cm ) deep behind the m ounting sur-

face.IMPORTANT! Allow for adequate ventilation.

able w ith the M T-XLRaccessory. See Section 5.)

4. An ap propriate A C cord and plug are provided. U se an

isolated w all outlet w ith the correct voltage and ad-

eq uate current. Voltag es m ore than 10% over the

am plifiers rated voltage m ay dam age the 15 volt regu-

Fig. 2.2 C SL Inp ut W iring

lator, filter capacitors and output transistors.

2.1 Stereo1. Turn the level controls dow n (fully counterclockw ise) and

turn off the am plifier.

2. Set the back panel stereo/m ono sw itch to Stereo.

3. If present, rem ove the Parallel-M ono jum per.

4. C onnect the inp ut and output cables as show n in the first

exam ple in Figure 2.3.

5. Turn on the am plifier and ad just the level for each chan-

nel w ith the b ack panel level controls.

CAUTION: In Stereo mode, never parallel the two

outputs by directly tying them together, and neverparallel them with the output of another amplifier.

2.2 M onoThe m onaural op erating m od es p rovide tw ice the

pow er to one channel as the Stereo m ode. In B ridge-

M ono m ode, the outputs are w ired in series for tw ice

the output voltage. In Parallel-M ono m od e, the outputs

are paralleled for tw ice the current capacity.

Bridge-M ono m ode is provided for loads w ith an im -

ped ance g reater than 4 ohm s. Parallel-M ono m ode

should be used w ith loads of 4 ohm s or less.

B R I D G E - M O N O1. Turn the level controls dow n (fully counterclockw ise) and


2. Set the b ack panel stereo/m ono sw itch to B ridge-M ono.

3. If present, rem ove the Parallel-M ono jum per.

4. C onnect the input and output cables as show n in the

second exam ple in Figure 2.3.Use the Ch.1 input only.

5. M ake sure the load is balanced (neither side shorted to

ground) and do not use the black () banana jacks.

6. Turn on the am plifier and adjust the level.Use the Ch.1level control only.

P A R A L L E L - M O N O1. Turn dow n the level controls (fully counterclockw ise) and


2. Set the back panel stereo/m ono sw itch to Parallel-M ono.3. Install a solid jum per (at least 14 gauge) across the out-

put betw een the tw o red (+) banana jacks.

4. C onnect the input and output cables as show n in the

third exam ple in Figure 2.3.Use the Ch.1 input only.

5. Turn on the am plifier and adjust the level.Use the Ch.1level control only.

CAUTION: When wired for Parallel-Mono mode, donot attempt to operate the amplifier in Stereo or

Bridge-Mono mode until the output jumper is re-moved. Failure to do so will result in inefficient op-

AIRFLOW

AIR FLOW

AMPLIFIER(TOP VIEW)

RACKCABINET

16 in40.6 cm

2 inMIN.

17 in43.2 cm

AIRFLOW

IMPORTANT: Be sure the back ofthe amplifier is supported.

Fig. 2.1 D o N O T B lock Air Flow

2. U se high-quality loudspeaker cables to connect the load

to the am plifiers output jacks. D o not use shielded

cab le. Banana plugs are recom m end ed for this connec-

tion.

3. U se shielded cables to connect audio sources to the

am plifier inp uts. Either balanced or unb alanced w iring

can be used as show n below . (XLR connectors are avail-

+

3

1

2

GND

FROM

PREAMPLIFIERINPUT

BALANCED

+

SHIELD

FROM

PREAMPLIFIERINPUT

UNBALANCED

+

SHIELD

+

3

1

2

SHIELD


7/19


Page 7

Fig. 2.3 Three System C onnection M ethods


8/19


Page 8

eration, distortion and excessive heating.

2. 3 Input Sensitivity AdjustmentThe input sensitivity sw itch inside the am plifier is set to

0.775 volts at the factory. It can be changed to 1.4 voltsor a voltag e gain of 26 dB as follow s:

1. Turn off and unplug the am plifier from the AC source.

2. Rem ove the access cover on the back panel.

3. Locate the lab eled access hole for the sensitivity sw itch.

4. Set the sw itch to the desired position.

5. Replace the access cover plate.

W hen set to 26 dB gain, the 460 C SLrequires a 2.0 volt

input, the 800 C SLrequires a 2.5 volt input and the 1400

C SLrequires a 3.2 volt input to deliver full output into an

8 ohm load.

2.4 Additional Load ProtectionBecause C SLam plifiers can generate enorm ous

pow er, it m ay be desirable to protect loudspeakers from

dam age due to excessive pow er. A com m on w ay to do

this is to put a fuse in series w ith the load. This m ay b e

accom plished w ith a single fuse to protect the entire

system , or by fusing each driver separately. U se Figure

2.4 to find the correct fuse.

Exam ple: (A) C hoose the peak m usic p ow er for the loud speaker

(such as 75 w atts). (B ) Find the loudspeaker im ped ance (8

ohm s). (C ) D raw a line betw een p oints A and B. The line inter-

sects the m iddle scale at the correct fuse value (1.5 am ps).

Fig. 2.4 Loud speaker Fuse N om ograph

1.0

1.2

1.4

1.6

2.5

3

4

5

6

7

8

9

10

12

14

16

20

25

30

20

15

10

8

6

5

4

3

2

1.5

1

.8

.6

.5

.4

.3

.2

.15

.1

.08

3000

2000

1500

1000

800

600

400

300

200

150

100

80

60

40

30

20

15

10

8

6

4

3

2

1.5

1

SPEAKERZ

(ohms)

FUSE

(amps)

SPEAKERRATING

PEAKMUSICPOWER

(watts)

(Typically4

timesthecontinuousaveragepower)

Example: Z = 8 ohms.

Peak Power = 75 W

Answer: Fuse = 1.5 A

2

40


9/19


Page 9

3 Operation3. 1 PrecautionsAlthough your am plifier is protected from external faults,

the follow ing safety precautions are recom m ended :

1. There are im portant differences am ong the Stereo,

Bridge-M ono and Parallel-M ono operating m odes.

Refer to Sections 2.1 and 2.2.

2. WARNING: Do not change the stereo/mono

switch unless the amplifier is first turned off.

3. CAUTION: In Parallel-Mono mode, a jumper is in-

stalled between the red output posts. Be sure toremove this jumper for Bridge-Mono or Stereo

mode, otherwise inefficient operation, high dis-tortion and excessive heating will occur.Also,

check the stereo/m ono sw itch for proper position.

4. U se care w hen m aking connections, selecting sig-

nal sources and controlling the output level.

5. D o not short the ground lead of an output cable to

the input signal ground . This m ay form a ground loop

and cause oscillations.

6. O perate the am plifier from AC m ains of not m ore

than 10% variation above or below the selected line

voltage and only at the specified line frequency.

7. N ever connect the output to a p ow er supply output,

battery or pow er m ain.8. C ircuit tam pering by unqualified personnel, or m ak-

ing unauthorized circuit changes voids the w arranty.

Rem em ber: C row n is not liable for any dam age that

results from overdriving other system com ponents.

3.2 IndicatorsW hen lit, the am ber LED show s that the unit is turned

on, and the low voltage p ow er supply is w orking. It does

not show the status of the high voltage supplies.

3.3 Protection SystemsC SLam plifiers have extensive protection system s, in-

cluding O D E P , ultrasonic/RF protection, drive protec-

tion, transform er therm al protection and fuses or circuit

breakers that protect the pow er supplies.

3 .3 .1 ODEPC row n invented O D E P to prevent am plifier shutdow n

during dem anding op eration and to increase the effi-

ciency of the output circuitry. To do this, C row n estab-

lished a rigorou s prog ram to m ea sure the safe

operating area(SO A) of each output transistor. Then,

C row n designed intelligent circuitry to sim ulate instan-

taneous transistor conditions. Its nam e describes w hat

it does: O utput D evice Em ulation Protection, orO D E P .

In essence, O D E P com pares transistor conditions to

their know n SO A. If m ore p ow er w ill be asked of them

than they can deliver w ith the present conditions,O D E P

lim its the drive until conditions fall w ithin the SO A. Lim -

iting is proportional and kept to an ab solute m inim um

only w hat is required to prevent output transistor

dam age. U nd er norm al cond itions, no lim iting is re-

quired and O D E P is transparent to the audio signal.

O D E P m akes possible a q uantum leap in output effi-

ciency and reliabilityw ith O D E P , the show goes on.

3. 3. 2 Ultrasonic and Radio Frequency (RF) ProtectionC SLam plifiers have a controlled slew rate. This m eans

that their design lim its the frequencies that they can re-

prod uce. The lim iting occurs far above audible freq uen-

cies (20 H z to 20 kH z), but it protects sensitive loads

like tw eeters from ultrasonic and radio frequencies. An

am plifiers slew rate only need s to be large enoug h to

deliver the m axim um voltage at the highest required

frequencyhigher slew rates actually allow undesir-

able frequencies to be reproduced.

3.3. 3 Drive ProtectionThe drive protection system tem porarily rem oves out-put drive to protect the am plifier and its loads. D rive

protection can be activated in tw o situations. First, if

dangerous subsonic freq uencies or direct current (D C )

is detected in the am plifiers output, the unit w ill activate

its D C /low frequency protection circuitry w hich also

activates drive protection m ode. This protects the loads

and prevents oscillations. The unit resum es norm al op-

eration as soon as dangerous output is no longer de-

tected. Although it is extrem ely unlikely that you w ill ever

activate the D C /low frequency protection system , im -

prop er source m aterials like sub sonic square w aves or

input overloads that excessively clip the input signalcan activate this system .

The am plifiers fault protection system w ill activate drive

protection m ode in rare situations w here the output de-

vices see heavy com m on-m ode current. The output

devices should never see heavy com m on-m ode cur-

rent unless the circuitry is dam aged. Activating drive

protection helps p revent further dam age.

3.3 .4 Transformer Thermal Protect ion

CSL am plifiers have transform er therm al protection.


10/19


Page 10

This protection circuitry is activated in unusual situa-

tions w here the units transform er tem perature rises to

unsafe levels. U nder these abnorm al conditions, the

unit rem oves pow er to the high voltag e transform er (the

fan w ill also run in 120 VAC , 60 H z units). The am plifierw ill return to norm al after it cools to a safe tem perature.

It is very unlikely that you w ill ever see a C SLam plifier

activate transform er therm al protection as long as it is

operated w ithin rated conditions. The am plifier is de-

signed to keep w orking under conditions w here other

am plifiers w ould fail. But even w hen the lim its of a C SL

are exceeded, it still protects itselfand your invest-

m entfrom dam age.

3. 3. 5 Fuses and Circuit Breakers

The p ow er sup plies for the 460 CS Land 800 CS Lare

protected by fuses, w hile the pow er supplies for the1400 CS Lare protected by a circuit breaker. W ith rated

loads and output levels, these fuses (or the circuit

breaker) should only shut dow n the am plifier in the in-

credibly rare instance of a catastrophic am plifier fail-

ure. O ther protection system s such as O D E P keep the

am plifier operational und er m ost other severe condi-

tions. The fuses (or breaker) can also shut dow n the

am plifier in situations w here extrem ely low -im pedance

loads and high output levels result in current draw that

exceeds their rating. Again, this should only be pos-

sible w hen operating outside rated conditions, such as

driving a 1 ohm load or overloading the inp ut and cre-

ating a severely clipped signal.

All 120 VAC , 60 H z units and all1400 CS Lunits have a

separate fuse for the low -voltag e p ow er supply and

cooling fan. Additionally, all units have separate fuses

(or a breaker) for the high-voltag e pow er supplies.

A CSL am plifier w ill not blow its fuses (or breaker) un-

less som ething is w rong. In the rare event that an inter-

nal fuse blow s, please refer the unit to a qualified

technician. If the breaker in a 1400 CS Ltrips, try to iden-

tify and correct the problem before resetting the breaker

w ith the back panel reset sw itch. If the problem per-

sists, refer the unit to a qualified technician.

3.4 ControlsThe enable sw itch is located on the front panel so you

can easily turn the am plifier on and off. W hen m aking

any setup or w iring changes, dont forget to turn off the

am plifier, turn dow n the level controls and disconnectthe pow er cord. The back panelstereo/mono switch

is used to select Stereo, Bridge-M ono or Parallel-M ono

operating m odes (see Sections 2.1 and 2.2). The level

controlsare also located on the back panel. Be sure toleave channel 2 turned dow n w hen using Bridge-M ono

m ode. The back panelground lift switchisolates thephone jack inp ut ground s from the chassis ground to

help prevent ground loops. It does not affect any in-

stalled input accessories. The input sensitivity switchis located inside the back cover plate. It is used to set

the am plifiers input sensitivity (see Section 2.3). And

the 1400 C SLhas a back panelreset switchthat is

used to reset the breaker that protects the am plifiers

pow er supplies (see S ection 3.3.5).

3. 5 Filter CleaningA dust filter is p rovided on the units air intake. If it be-

com es clogged, the unit w ill cool less efficiently and

m ay prod uce low er output levels. To clean, rem ove the

three phillips screw s that secure the front grille. U se

m ild dishw ashing detergent and w arm w ater for best

results. N ew filters m ay be ordered from the factory.

D ust filters are not 100% efficientdepending on the

local environm ent, the internal heat sinks of the am pli-

fier w ill benefit from periodic cleaning by a qualified

technician. Internal cleaning inform ation is available

from our Technical Support G roup.

Fig. 3.1 B ack Panel Level C ontrols

CHANNEL 2

LEVEL CONTROL

CHANNEL 1

LEVEL CONTROL

CH-2

(MONO)

INPUT

CH-1

INPUTGAIN

01

2

3

45 6 7

8

9

10

1112

GAIN

01

2

3

45 6 7

8

9

10

1112

INPUT GROUND LIFT

(AFFECTS PHONE INPUTS ONLY.)

LIFT


11/19


Page 11

PowerOutput Power:The follow ing specifications are guar-anteed m inim um s for standard 1 kH z pow er from 120

VA C , 60 H z N orth Am erican units. For ad ditional infor-

m ation and pow er specifications for international units,see the pow er m atrices on the pages that follow .

460 CS L

Stereo m ode (both channels driven):

240 w atts into 4 ohm s.


Bridg e-M ono m ode:



Parallel-M ono m ode:



800 CS L










1400 CS L


700 w atts into 4 ohm s.500 w atts into 8 ohm s.


1,500 w atts into 8 ohm s.





Load Impedance:Safe w ith all types of loads. Ratedfor 4 to 8 ohm s in S tereo, 8 to 16 ohm s in B ridge-M ono

and 2 to 4 ohm s in Parallel-M ono m ode.

Required AC Mains:50 to 60 H z; 100, 120, 220, 230and 240 VA C ( 10% ) units are availab le. A ll draw

90 w atts or less at idle. C urrent, frequency and voltage

requirem ents are provided on each units back panel.

460 C SL: 100 and 120 VA C units draw up to 6 am ps of

current; 220 and 240 VA C units draw up to 3 am ps.

800 CS L: 100 and 120 VA C units draw up to 10 am ps

of current; 220 and 240 VA C units draw up to 5 am ps.

1400 CS L: 100 and 120 VA C units draw up to 15 am ps

of current; 220 and 240 VA C units draw up to 7 am ps.

4 Specif icat ionsThe follow ing ap plies to units in S tereo m od e w ith 8 ohm loads and

an input sensitivity of 26 dB unless otherw ise specified.

Standard 1 kHz Power:refers to m axim um averag e pow er in w attsat 1 kH z w ith 0.1% TH D .

Full Bandwidth Power:refers to m axim um average pow er in w attsfrom 20 H z to 20 kH z w ith 0.1% TH D .

120 VAC, 60 Hz Units:refers to am plifiers w ith dedicated trans-form ers for 120 VA C , 60 H z pow er m ains.

International Units:refers to am plifiers w ith sp ecial m ulti-tap trans-form ers that m ake them configurable for several AC m ains voltag es

and line freq uencies.

PerformanceFrequency Response: 0.1 dB from 20 H z to 20 kH z

at 1 w att.

Phase Response: 10 degrees from 10 H z to 20 kH zat 1 w att.

Signal-to-Noise Ratio:A -w eighted, better than 105 dBbelow full bandw idth pow er. N o w eighting, better than

100 dB below full bandw idth pow er.

Total Harmonic Distortion (THD):Less than 0.05% atfull bandw idth p ow er from 20 H z to 1 kH z increasing

linearly to 0.1% at 20 kH z.

Intermodulation Distortion (IMD):(60 H z and 7 kH z)Less than 0.05% from less than 158 m illiw atts to full

bandw idth pow er.

Damping Factor:G reater than 1,000 from 10 H z to400 H z.

Crosstalk460 CS L: G reater than 75 dB below full bandw idth p ow er

from 50 H z to 2 kH z, rising linearly to greater than 60 dB at

20 kHz.

800 CS L: G reater than 90 dB below full bandw idth p ow er


20 kHz.

1400 CS L: G reater than 90 d B below full bandw idth p ow er


20 kHz.

Slew Rate:G reater than 13 volts per m icrosecond.

Voltage Gain:20:1 3% or 26 dB 0.25 dB at the m axi-m um level setting .

460 CS L: 51:1 12% or 34.3 dB 1 dB at 0.775 volt sensi-

tivity; 28:1 12% or 29.1 dB 1 dB at 1.4 volt sensitivity.

800 CS L: 64:1 12% or 36.2 dB 1 dB at 0.775 volt sensi-

tivity; 35:1 12% or 31.0 dB 1 dB at 1.4 volt sensitivity.

1400 CS L: 83:1 12% or 38.4 dB 1 dB at 0.775 volt sen-

sitivity; 46:1 12% or 33.3 dB 1 dB at 1.4 volt sensitivity.


12/19


Page 12

Sufficient AC pow er m ust be provided to the am plifier.

Am plifiers cannot create energythey require proper

voltage and current to deliver the pow er you expect.

Low-Voltage Power Supply:A 24 VD C fanform ersupply (fan m otor w inding) regulated to 15 VD C .

AC Connector:A n appropriate AC line cord and plug

are provided . N orth A m erican units have a standard

3-w ire, 15 am p ground ed connector (N EM A 5-15P).

ControlsEnable:A front panel rocker sw itch used to turn the

am plifier on and off.

Level:A back panel rotary potentiom eter for each chan-nel used to control the output level.

Stereo/Mono:A three-position back panel sw itch used

to select Stereo, Bridge-M ono or Parallel-M ono m od e.

Sensitivity:A three-position sw itch inside the backcover plate used to select the input sensitivity for both

channels: 0.775 volts or 1.4 volts for standard 1 kH z

pow er, or 26 dB voltage gain (see Section 2.3).

Ground Lift:A tw o-position back panel sw itch used to

isolate the phone jack input ground from the AC ground.

Reset (1400 CSLonly):A back panel push button used toreset the circuit breaker that protects the pow er supplies.

IndicatorsEnable:This am ber indicator show s the on/off statusof the low voltag e pow er supply.

Input/OutputInput Connector:Tw o balanced inch phone jacks.

See Section 5 for XLR and barrier block accessories.

Input Impedance:N om inally 20 K ohm s, balanced;10 K ohm s, unbalanced.

Output Connector:Tw o sets of color-coded 5-w ay bind-

ing posts (for banana plugs, spade lugs or bare w ire).

Output Impedance:Less than 10 m illiohm s in seriesw ith less than 2 m icrohenries.

DC Output Offset:Less than 10 m illivolts.

Output SignalStereo:U nbalanced, tw o-channel.

Bridge-Mono:Balanced, sing le-channel. C hannel 1controls are active; C hannel 2 should not be used.

Parallel-Mono:U nbalanced, single-channel. C hannel

1 controls are active; C hannel 2 should not be used.

ProtectionC SLseries am plifiers are protected against shorted,

open or m ism atched load s; overload ed pow er sup-

plies; excessive tem perature, chain destruction phe-

nom ena, input overload dam age and high-frequencyblow up s. They also protect loudspeakers from inp ut

and output D C , as w ell as providing protection from

turn-on/turn-off transients.

If operating conditions are unreasonable, the patented

O D E P circuitry proportionally lim its the drive level to

protect output transistors, particularly in the case of el-

evated tem perature. A therm al sw itch im bed ded in the

transform er protects the pow er supplies from overload.

In the rare event that a transform er overheats, the ther-

m al sw itch rem oves pow er, w aits until the unit has

cooled to a safe tem perature and resets itself. C on-

trolled slew rate voltage am plifiers p rotect the unit fromRF burnouts, and current-lim iting resistance protects

the input circuitry from overload. (Refer to Section 3.3.)

Turn On:N o dangerous transients. The four second

(approxim ate) turn-on delay can be changed. C ontact

C row ns Technical Sup port G roup for details.

ConstructionD urable black finish on steel chassis w ith specialflow -

throughventilation from front to side panels.

Cooling:Internal heat sinks w ith forced air cooling for

rapid, uniform heat dissipation.

Dimensions:Stand ard 19 inch (48.3 cm ) rack m ount

w idth (EIA RS-310-B ), 3.5 inch (8.9 cm ) height and

16 inch (40.6 cm ) depth b ehind the m ounting surface.

Approximate Weight:C enter of gravity is 6 inches (15.2cm ) behind front m ounting surface.

120 VAC, 60 Hz Units:

460 C SL: 30 pound s (13.6 kg) net; 34 pound s

(15.4 kg) shipping w eight.

800 C SL: 34 pound s (15.4 kg) net; 38 pound s

(17.2 kg) shipping w eight.

1400 CS L: 36 pound s, 2 ounces (16.4 kg) net;40 pounds (18.2 kg) shipping w eight.

International Units:

460 CS L: 30 pound s, 12 ounces (14.0 kg) net;

35 pounds, 1 ounce (15.9 kg) shipping w eight.


39 pounds, 11 ounces (18.0 kg) shipping w eight.


40 pounds, 15 ounces (18.6 kg) shipping w eight.


13/19


Page 13

Fig. 4.1 460 C SL M inim um Pow er M atrix

8

460 CSLMinimum 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

180

350

200

390

390

Maximum Average

Load(Ohms)

AC

M

ains

1

20VAC,

60HzUnits

1 kHz

0.1% THD+N

(See note 1)

0.1% THD+N

(See note 2)

240

200

455

395

455

400

20Hz-20kHz

185

370

4

2

8

8

16

4

175

350

200

390

390

230

205

465

410

440

410

185

375

0.05% THD+N

(See note 3)

1 kHz

235

200

455

390

445

395

225

200

455

405

430

405

4

2

8

InternationalUnits


Parallel-Mono


driven)

Crown specifications are guaranteed for three years.

In an effort to provide you w ith as m uch inform ation as possible ab out the high pow er-prod ucing capab ilities of your am plifier, w e have

created the follow ing pow er m atrices.

Minimum Power SpecificationsC row ns m inim um pow er specifications rep resent the ab solute sm allest am ount of output pow er you can exp ect from your am plifier

w hen it is driven to full output under the given cond itions. Som e sp aces in each m atrix m ay b e left blank because the sam e g uarantee

is not provided for those co nd ition show ever, your am plifier w ill perform w ell under all conditions listed in each m atrix.

W hen m easuring po w er, w e use TH D plus noise as the reference b ecause it is a m ore d em and ing test than true TH D . Po w er tests also

req uire a reference distortion level, and 0.1% TH D ap pears to be the ind ustry standard. Tw o of the m axim um averag e pow er rating s in

each m inim um po w er m atrix are m easured at 0.1% TH D plus noise so you c an easily com pare C row n sp ecifications to those of other

m anufac turers. B ut this high level of distortion actually allow s for som e clipping w hich is und esirable. B ecause of this, a m axim um

averag e pow er specification at 0.05% TH D plus noise is includ ed in each m inim um pow er m atrix to rep resent non-clipped cond itions.

A lthoug h m ost m anufacturers do not give you p ow er specifications at 0.05% TH D , w e encourag e them to p rovide these sp ecifications

so you w ill ha ve a m ore realistic rep resentation of the w ay am plifiers should be u sed in the rea l w orldw ithout a clipped output signal.

M any m anufacturers pub lish p ow er specs w ith a tolerance of 1 d B or w orse. This m eans their am plifier can d eviate m ore than 20% in

ou tput! A 100 w att am plifier w ould m eet their sp ecification if it on ly p rod uced 79.4 w atts. O ther m anufacturers qualify their specs by

saying they are typ ical,sub ject to m anufacturing tolerances,sing le cha nnel drivenor that they are specified w ith fuses b ypassed .

Each of these statem ents effectively rem oves any p erform ance guarantee. In fact, som e m anufacturers use these tactics to g enerate

large pow er num bers, and they d ont even print a d isclaim er. W e take a different ap proach at C row nour am plifiers are guaranteedto

m eet or exceed their specifications for three yea rs. Further, because our pub lished specs are set below ourin-housem easurem ents,you can expecteveryC row n am plifier to exceedits p ub lished m inim um po w er specs. W e b elieve you should get w hat you pa y for.

Minimum Power Notes:A ll m inim um po w er spe cifications are b ased on 0 .5% reg ulated A C m ains w ith TH D of less than 1.0% and an a m bient room tem pe rature of 70F (21C ).

Interna tion al un its w ith m ulti-tap tran sform ers are sp ec ified for the w orst-ca se tran sform er tap (no rm ally 10 0 V A C , 50 H z). The stand ard E IA pow er m ea-

surem en t (R S-49 0) is no t iden tified he re b ecau se it is iden tica l to the FT C C on tinu ou s A verag e P ow er spec ifica tion .

1. A 1 kH z sine w ave is presen ted to the am plifier and the ou tput m on itored for non line ar distortion . Th e level is inc rea sed un til TH D plus noise reaches

0.1% . A t this level the averag e pow er pe r channel is repo rted .

2. A sine w ave is p resented to the am plifier over the range from 20 H z to 2 0 kH z an d the output m onitored for nonlinear distortion. The level at each

freq uency is increased until TH D plus noise reaches 0.1% . A t this level the averag e p ow er per chan nel is rep orted .

3. A 1 kH z sine w ave is presen ted to the am plifier and the ou tput m on itored for non line ar distortion . Th e level is inc reased un til TH D plus noise reaches

0.05% . A t this level the averag e p ow er per channel is repo rted .

4. C ontinuous po w er in the context of Federal Trade C om m ission testing is understood to b e a m inim um of five m inutes of op eration. TH D plus noise is

m easured a s the R M S sum total and given as a percentag e of the fundam ental output voltag e. This ap plies for all w attag es g reater than 0.25 w atts.


14/19


Page 14


8

800 CSLMinimum Guaranteed Power (Wa tts)

Stereo/Mono

Mode


driven)


Parallel-Mono

16

4

FTC Continuous Average0.1% THD+N

(See note 4)

1 kHz 20Hz-20kHz

250

515

370

300

800

610

800

615

Maximum Average

Load(Ohms

)

AC

M

ains

120VAC,

60HzUnits

1 kHz

0.1% THD+N

(See note 1)

0.1% THD+N

(See note 2)

425

300

900

645

905

640

20Hz-20kHz

410

300

815

600

4

2

8

8

16

4

310

260

625

530

380

300

775

600

770

600

410

300

840

605

835

605

375

275

760

560

0.05% THD+N

(See note 3)

1 kHz

425

300

900

640

900

635

410

300

835

600

830

600

4

2

8

InternationalUnit

s


Parallel-Mono

Stereo

(both channelsdriven)


8

1400 CSLMinimum Guaranteed Power (Wa tts)

Stereo/Mono

Mode


driven)


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

M

ains

120VAC,

60HzUnits

1 kHz

0.1% THD+N

(See note 1)

0.1% THD+N

(See note 2)

700

500

1,500

1,075

1,515

1,050

20Hz-20kHz

700

500

1,415

1,030

4

2

8

8

16

4

470

455

1,070

915

540

500

1,100

1,010

1,100

1,015

665

500

1,320

1,010

1,350

1,000

615

480

1,225

965

0.05% THD+N

(See note 3)

1 kHz

700

500

1,500

1,060

1,505

1,050

645

500

1,300

1,000

1,325

1,000

4

2

8

InternationalUnits


Parallel-Mono


driven)


15/19


Page 15

Maximum Power SpecificationsC row ns m axim um pow er specifications rep resent the largest am ount of output pow er you can exp ect from your am plifier w hen it is

driven to full output under the given conditions. These specifications can b e used to p revent loudspeaker and hearing dam ag e.

The m axim um pow er m atrices includ e specifications for sing le cycle and 40 m illisecond burst sine w aves. Burst signals act like large

transient peaks that are present in com m on source signals. Loud speakers can respond to a sing le cycle b urst, so the sing le cycle b urst

sp ecifications sh ould be used to help you protec t your lou dspea kers. In co ntrast, a 40 m illiseco nd burst rep resen ts the typ ical

response tim e o f the hum an ear. Your ear w ill not respond to the entire d yna m ic c hang e of a burst that lasts less than 40 m illisecond s.

O ur m axim um pow er specifications are referenced to a distortion leve l of 0.05% . The distortion reference for this m easurem ent is not

lim ited to TH D , but includ es all types of distortion and no ise. The distortion level of 0.05 % is used because this represen ts a low

distortion condition. To help you op erate your am plifier w ithin these tolerance s, C row ns p rem ium am plifiers includ e an inp ut/output

com parator that show s w hen the am plifier has exce ed ed 0.05% distortion. O perating the am plifier at distortion levels ab ove 0.05% can

result in output pow er levels that are higher than those listed in the m axim um pow er m atrices.

Maximum Power Notes:A ll m axim um po w er spe cifications are base d o n 0.5% reg ulated A C m ains w ith TH D of less than 1.0% and an am bient room tem pe rature of 70F (21C ).

Interna tion al un its w ith m ulti-tap tran sform ers are spec ified for the best-ca se transform er tap (norm ally 240 VA C , 60 H z). A lthoug h it is an un usua l co nd i-

tion , your am plifier can function w ell w ith A C m ains voltag es up to 10% over the sp ec ified line voltag e. W ith o vervoltag e cond ition s, your am plifier m ay be

ca pab le o f delivering instan tan eous pow er levels up to 2 0% grea ter tha n the sp ec ifications in the m atrix.

1. A sing le cycle sine w ave is presen ted to the am plifier an d m on itored for no nline ar distortion . Th e averag e p ow er during the burst is rep orted . Lo ud -

sp ea kers m ust be ab le to w ithstan d this level if the y a re to be safely u sed w ith this a m plifier.

2. A 40 m illisecond sine w ave burst (10 percent duty cycle) is p resented to the am plifier and m onitored for non linear distortion. The ave rag e pow erduring the burst is reported . Th is p ow er level is a m easurem en t of the am plifiers m axim um transient po w er that can be p erceived b y the hum an ea r.

Fig. 4.4 460 C SL M axim um Pow er M atrix

8

460 CSL Maximum Power (Watts)

Stereo/Mono

Mode


Parallel-Mono

16

4

Single Cycle Tone Burst

Load(Ohms)

AC

M

ains

120VAC,

60HzUnits

0.05% Distortion +Noise

(See note 1)

50 Hz

325

265

630

540

635

530

4

2

8

8

16

4

325

290

640

580

620

580

1 kHz

335

310

640

630

645

615

330

345

650

690

625

690

7 kHz

335

300

620

610

640

600

330

335

670

670

625

670

4

2

8

InternationalUnits


Parallel-Mono

40 Millisecond Tone Burst

50 Hz


(See note 2)

315

230

600

470

620

465

1 kHz

295

220

565

440

580

430

320

260

635

520

615

515

315

235

625

470

615

475

7 kHz

310

230

580

455

605

450

330

250

655

495

625

490


driven)


driven)


16/19


Page 16



8

800 CSL Ma ximum Power (Watts)

Stereo/MonoMode


Parallel-Mono

16

4


Load(Oh

ms)

AC

M

ai

ns

120VAC,

60HzUnits

0.05% Distortion +Noise(See note 1)

50 Hz

655

460

1,410

915

1,440

915

4

2

8

8

16

4

720

465

1,440

920

1,390

915

1 kHz

805

525

1,850

1,060

1,685

1,055

900

530

1,770

1,055

1,670

1,055

7 kHz

790

515

1,805

1,020

1,645

1,020

885

510

1,785

1,020

1,655

1,015

4

2

8

InternationalU

nits


Parallel-Mono


50 Hz

0.05% Distortion +Noise(See note 2)

550

400

1,190

795

1,185

805

1 kHz

500

375

1,090

755

1,085

750

605

410

1,200

820

1,185

820

545

380

1,075

750

1,065

750

7 kHz

520

395

1,125

780

1,120

775

565

395

1,120

785

1,110

775


driven)


driven)

8

1400 CSL

Ma ximum Power (Watts)

Stereo/Mono

Mode


Parallel-Mono

16

4


Load(Ohms)

AC

M

ains

120VAC,

60HzUnits


(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

2,330

1,570

1 kHz

1,575

870

3,140

1,740

3,135

1,735

1,750

960

3,490

1,915

3,485

1,895

7 kHz

1,525

835

3,040

1,675

3,015

1,665

1,695

920

3,380

1,840

3,345

1,825

4

2

8

InternationalUnits


Parallel-Mono


50 Hz


(See note 2)

910

610

1,780

1,250

1,790

1,225

1 kHz

815

570

1,615

1,135

1,605

1,135

970

675

1,945

1,360

1,940

1,360

870

625

1,725

1,235

1,720

1,235

7 kHz

855

595

1,690

1,180

1,680

1,170

920

645

1,805

1,285

1,800

1,270


driven)


driven)


17/19


Page 17

5 AccessoriesThere are tw o accessories available at the tim e of this

printing: the M T-XLRand the M T-BB. Im portant: The M T-

XLRand M T-BBm ust be installed at a C row n FactoryService C enter or the C row n factory.

5. 1 M T-XLRThe M T-XLRis an accessory panel that provides tw o

standard 3-pin fem ale X LR inp ut connectors. The

M T-XLRaccessory m akes it easy to quickly change

connections in a system that uses standard XLR con-

nectors. It can also be used in system s that need to

daisy chain an input signal from one am plifier to an-

other. Because the M T-XLRconnectors are in p arallel

w ith the am plifiers built in p hone connectors, an input

signal fed to either input can be fed to another am plifierfrom the unused connector for that channel.

5.2 MT-BBThe M T-BBis an accessory panel that provides barrier

strip input connectors. An M T-BBaccessory m ight be

desirable in applications requiring bare w ire connec-

tions. It can also be used to d aisy chain an input signal

from one am plifier to another just like the M T-XLR.

MT-BB + +

CH- 2 I NP UT CH -1 I NP UT

Fig. 5.2 The M T-B B

MT-XLR CH- 2 I NP UT CH- 1 I NP UT

PUSH PUSH3

1 2GNDTHESE XLR INPUTS ARE CONNECTED IN PARALLEL WITH THE PHONE JACK INPUTS.

Fig. 5.1 The M T-XLR


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Page 18

6 ServiceThis unit has very sophisticated circuitry w hich should

only be serviced by a fully trained technician. This is

one reason w hy each unit bears the follow ing label:CAUTION: To prevent electric shock, do not remove

covers. No user serviceable parts inside. Refer ser-vicing to a qualified technician.

6.1 Worldwide ServiceService m ay be obtained from an authorized service

center. (C ontact your local C row n/Am cron representa-

tive or our office for a list of authorized service centers.)

To obtain service, sim ply present the bill of sale as proof

of purchase along w ith the defective unit to an autho-

rized service center. They w ill handle the necessary

paperw ork and repair.

Rem em ber to transport your unit in the original factory

pack.

6. 2 North American ServiceService m ay be obtained in one of tw o w ays: from an

authorized service center or from the factory. You m ay

choose either. It is im portant that you have your copy of

the bill of sale as your proof of purchase.

6. 2. 1 Service at a North American Service Center

This m ethod usually saves the m ost tim e and effort.

Sim ply present your bill of sale along w ith the defectiveunit to an authorized service center to obtain service.

They w ill hand le the necessary pap erw ork and rep air.

Rem em ber to transport the unit in the original factory

pack. A list of authorized service centers in your area

can be obtained from our Technical Support G roup.

6.2.2 Factory ServiceTo obtain factory service, fill out the service informa-

tion pagethat follow s and send it along w ith your proofof purchase and the d efective unit to the C row n factory.

For w arranty service, w e w ill pay for ground shipping

both w ays in the U nited States after receiving copies of

the shipping receipts. Shipm ents should be sentU PS

ground.(If the unit is under w arranty, you m ay send it

C .O .D . for the cost of freight via U PS ground.) The fac-

tory w ill return it via U PS ground. Please contact us if

other arrangem ents are req uired .

shipping pack. D o not send the service inform a-

tion form separately.

2. To ensure the safe transportation of your unit to

the factory, ship it in an original factory p acking

container. If you dont have one, call or w rite

C row ns Parts D ep artm ent. W ith the exception of

polyurethane or w ooden crates, any other pack-

ing m aterial w ill not be sufficient to w ithstand the

stress of shipping.Do not use loose, small size

packing materials.

3. D o not ship the unit in any kind of cabinet (w ood

or m etal). Ignoring this w arning m ay result in ex-

tensive dam ag e to the unit and the cabinet. Ac-

cessories are not need eddo not send the

instruction m anual, cables and other hardw are.

If you have any questions, please call or w rite the C row n

Technical Support G roup.

Always use theoriginal factory packto transport the unit.

Factory Service Shipping Instructions:

1. W hen sending a C row n p roduct to the factory for

service, be sure to fill out the service inform ationform that follow s and enclose it inside your units

Crown Audio DivisionTechnical Support / Factory Service

Plant 2 SW , 1718 W . M ishaw aka Rd., Elkhart,

Indiana 46517 U .S.A.

Telephone: 219-294-8200

800-342-6939 (North America,

Puerto Rico, and Virgin Islands only)

Facsim ile: 219-294-8301 (Technical Suppor t)

219-294-8124 (Factory Service)

Fax Back: 219-293-9200 (North America only)

800-294-4094 (North America only)

219-294-8100 (International)

Internet: http://w w w .crow nintl.com


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Crown Factory Service InformationShipping A ddress: C row n Factory Service, Plant 2 SW , 1718 W . M ishaw aka R d., Elkhart, IN 46517

Phone: 1-800-342-6939 or 1-219-294-8200 Fax: 1-219-294-8124

Owners Name: _________________________________________________________________________

Shipping Address: ______________________________________________________________________

Phone Number: _____________________________ Fax Number: _____________________________

Model: ________________________ Serial Number: ______________ Purchase Date: ___________

NATURE OF PROBLEM

(Be sure to describe the cond itions that existed w hen the prob lem occurred and w hat attem pts w ere m ad e to correct it.)

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

Other equipment in your system: __________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________

If warranty has expired, payment will be: Cash/Check VISA MasterCard C.O.D.

Card Number:___________________________ Exp. Date:_______ Signature:_____________________________

ENCLOSE THIS PORTION WITH THE UNIT. DO NOT M AIL SEPARATELY.

D

eta

chand

send

w

ithunit.

csl series reference manual 125168 original

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