Owner`s Manual CA-M300 / CT-M300 300W Monaural - E-HiFi
Contents
1. 0 ssseerseneneznnneneazennnnnzenzznenaznenenaznenazzznana 25 PlayLinK ae 25 IND INTO Em 26 21 7 9 5 T M 26 Care and Maint nanc reed i 27 TOUBISSNOOUNE E S T 28 Specificatii ONS esisiini 30 DIMENSION Srann RT 31 a word about installation Welcome to the Class family Congratulations on your purchase of a Class amplifier It is the result of man 8 your p years of continuous refinement and we are sure that you will enjoy it for many years to come We value our relationship with our customers Please allow us to stay in touch with you by returning your warranty card now before you pack up the shipping carton of your new product and forget all about it Doing so will enable us to let you know about any possible future upgrades or updates that might become available for your Class component You can register online at www classeaudio com or complete and mail the registration card located in the separate warranty booklet Please take a few moments now to register your new Class amplifier and record your serial number here for future reference Serial Every effort has been made to make the Class CA M300 CT M300 simple and straightforward to install and use Ihe C1 M300 has been designed2. macros for sophisticated remote control systems facilitating the control of the amplifier in the larger context of a complete system Actually this ZR Input and Output description is a bit of a misnomer the input supplied to these plugs is e ectrical in nature not IR It is obtained by using standard IR receivers distribution amplifiers and emitters available from your dealer to translate the remote s flashes of infrared light into corresponding pulses of electricity The big advantages here include being able to easily route the signals anywhere they might need to go and the reliability of a solid electrical connection Since an IR distribution system such as your dealer may design for you usually must control many products your amplifier includes both an IR input for the control of this product and an IR output so as to pass along the same signal to the next product This allows you to daisy chain your control wires from one product to the next The amplifier is designed to respond to IR commands of 5 Volts DC with the tip of the mini plugs defined to be positive relative to the shank of the plug 5Vdc less than 100 mA 16 10 DC Trigger Input and Output Many audio video preamplifiers can supply a DC control voltage to associated equipment in order to induce desired behavior Your Class amplifier can take advantage of these capabilities in order to be switched between operate and stand
3. s XLR connector s take standard balanced interconnect cables and plug them in If you are using another brand of preamplifier or processor please refer to its operating manual to verify that the pin assignments of its output connectors correspond to those of your amplifier If not have your dealer obtain cables with the appropriate output pin connecting to the equivalent input pin Single Ended RCA Input Single ended cables using RCA connectors are the most common form of analog connection used in consumer electronics When implemented carefully and with use of high quality interconnecting cables this standard can provide excellent performance Class has gone to extraordinary effort to ensure that the single ended RCA input of your power amplifier is as good as possible However this connection standard cannot offer the immunity from interference that balanced interconnection does hence our recommendation to use the balanced inputs when possible Speaker Outputs Two pairs of high quality five way binding posts are provided on the amplifier in order to facilitate bi wiring In practice bi wiring involves connecting two preferably identical sets of speaker cables between each amplifier channel and its corresponding loudspeaker In many cases the benefit is a subjectively improved level of clarity and detail from the speaker as a result of being able to feed the two separate sections of its crossover and driver complement w
4. Having several powerful amplifiers all turning on at the same time can sometimes stress the AC mains in your home potentially leading to nuisance tripping of circuit breakers The amplifier sequence number turn on delay may be programmed by your Class dealer using a PC utility Make your preamp processor connections With the amplifier in standby or disconnected from the AC mains using high quality interconnecting cables make the appropriate connections with the balanced or single ended connectors Make sure all the connections are snug even if it means gently squeezing the outer shell of the RCA with pliers and reinserting it to tighten the connection Make your speaker connections Make the connection between the output terminals of the amplifier and your loudspeakers using high quality speaker wires Connect the black terminals on the amplifier to the black terminals on your speaker and the red terminals on the amplifier to the red terminals on your speaker If bi wiring run a total of four conductors between each amplifier channel and its corresponding loudspeaker two separate leads one for the bass and the other for the mids and treble Make sure that no wires cross between the red and black terminals at either end Make sure all the connections are snug and cannot be easily wiggled free but do not overtighten them If you can give the speaker wires a reasonable tug without movem
5. Owner s Manual CA M300 CT M300 300W Monaural Amplifier NOTICE All of us at Class take extreme care to ensure that your purchase will remain a prized investment We are proud to inform you that all Class components have been officially approved for the European Community CE mark This means that your Class product was subjected to the most rigorous manufacturing and safety tests in the world The CE mark certifies that your purchase meets or exceeds all European Community requirements for manufacturing consistency and consumer safety This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment on and off the user is encou
6. ii i 6 serial vies 6 operating voka DE ssa iie ii e rinse xat rett ga tin eed ete 7 warmi p break in period is susc ertet ente ene oe tene leere 8 please read this mantial z nc Ra RES highly refined circuit design extensive listening tests extraordinary longevity ettet herren 9 robust protection Front PANE eT M CT M300 stand alone installation instructions 18 eG DI a ARTAB 21 ICE C aes 21 III E 21 usin CANEBUS rare D nere din a ai re ind 23 CAN Bus shared features s 24 CONT BUTAtIONA X 24 AC status SUALUS 7 7 name global brightness global standby M 24 CAN Bus model specific features
7. sensors gt The touchscreen will then display the CAN Bus devices screen which lists connected Delta series components by model amp serial number back CAN bus le devices p COP 202 1832545 a CP 500 1641150 CA 2200 1594489 Highlighting a unit on the CAN Bus devices screen identifies it as the target unit The front panel LEDs of the target unit will start flashing unless you highlight the unit that you are using to access CAN Bus Once you have chosen the target unit press select The target unit s LEDs will stop flashing and the touch screen will list the CAN Bus features available to it Some CAN Bus features are shared by all models some are specific to individual models 23 24 CAN Bus shared features configuration operate AC status Status name global brightness global standby The following CAN Bus features are shared by all models 684 CAN bus home iG configuration Q C 3 global brightness Selecting configuration will present the CAN Bus configuration screen allowing access to name global brightness and global standby features The operate settings allow you to bring the target unit in and out of standby or mute This key will be disabled for the unit whose touchscreen you are using to access CAN Bus The AC status screen displays information from the target units electrical supply sensors Two screens are available w
8. will ensure that you get all the benefits you deserve from having purchased such a fine piece of equipment highly refined circuit design extensive listening tests extraordinary longevity Special Design Features This Class amplifier benefits from the use of high quality component parts application of advanced electronics design principles and exhaustive testing Its design uses fewer parts in the signal path than is typical while also achieving outstanding measured performance This unusual accomplishment showcases both the innovation of the design and the persistence of the Class Design Team Excellent measured performance is to be expected in world class products and Class products deliver that performance However experience has shown that technical excellence alone is insufficient to guarantee subjectively musical results For this reason all Class products are laboriously fine tuned during the development process by carefully controlled listening tests Our ears are still some of the finest laboratory test instruments available and nicely complement more traditional engineering test equipment We rely on careful listening tests which we view as a necessary complement to the solid engineering you should rightly expect from Class The Class Design Team has accumulated vast experience in what works well over the long term By using only the highest quality parts to begin with and then using them in an inform
9. able to achieve its usual standard of performance under these compromised conditions The Standby LED will flash to indicate the condition warm up break in period please read this manual Your new Class power amplifier will deliver outstanding performance immediately However you should expect to hear it improve somewhat as it reaches its normal operating temperatures and its various components break in It has been our experience that the greatest changes occur within the first 300 hours as the amplifier reaches thermal equilibrium and the capacitors fully form After this initial break in period the performance of your new amplifier should remain quite consistent for years to come The only exception to this rule is if the unit is placed in standby or unplugged for an extended period of time allowing it to cool down Depending on the degree of cooling involved you should expect a brief warm up period on the order of 10 15 minutes before the power amplifier s sound quality is at its best Unless your amplifier was allowed to become quite chilled subsequent thermal re stabilization should not take long Fortunately you should never have to repeat the initial 300 hour break in period Please take a few minutes to review this manual and to familiarize yourself with your new amplifier We understand that you are anxious to plug everything in and get started However reading this manual and following the advice it gives
10. connections and speaker connections and refer to the appropriate item of the section enitled Troubleshooting Danger Do not open your amplifier There are no user serviceable parts within this product Potentially dangerous voltages and current capabilities exist within your power amplifier even when disconnected from AC mains Do not attempt to open any portion of the amplifier s cabinet There are no user serviceable parts inside your power amplifier All service of this product must be referred to a qualified Class dealer or distributor 18 Important CT M300 rack mount installation _ CT M300 stand alone installation instructions Installation Your new Class amplifier is quite simple to set up and enjoy Please follow the steps outlined below in order to safely set up and use your new amplifier The AC mains connection should be the last connection you make on your new power amplifier In addition it is always a good idea to power up your power amplifier s last after everything else has been powered up and has stabilized Conversely it is good practice to power the amplifier s down first when shutting down the system as this prevents any transients from other components from getting through to your loudspeakers 1 Unpack everything according to the included instructions Be careful when doing so as this amplifier is quite heavy 2 Place your amplifier be sure to read Unpacking and
11. is active pressing play on the disc player will also automatically switch the preamp processor to a specified input This means that you can listen toa CD or watch a DVD literally at the touch of a button back CDP 202 1933952 configuration status gt The first step in using PlayLink is to choose the input you wish to be selected when play is pressed on the disc player Press the PlayLink icon then select the correct input from the list CAN bus d configuration lt name Disc Once you have selected the input press back then select configuration PlayLink is activated and disabled through the PlayLink icon on the CAN Bus configuration screen PlayLink is automatically active after a software update and the PlayLink icon will only appear on the CAN Bus configuration screen of a Delta series disc player PlayLink can only select a single input per disc player It is therefore not designed for users who regularly play both CDs and DVDs through different inputs from a single disc player When PlayLink is active the disc player will default to the same input every time play is pressed regardless of whether it is playing CD or DVD 25 26 amp info event log Available for amplifiers only this screen displays the data provided by the heatsink and AC Module temperature sensors back CA 2100 z 1583036 2 configuration status J operate E eventlog gt gt AC
12. standby and carefully reconnect the speaker wires Check both ends of the speaker wires for possible short circuits Then power up the amplifier again If the amplifier remains functional the fuse does not blow then the original fuse probably blew in order to protect the amplifier from a large AC mains surge If it blows again contact your Class dealer for assistance The Standby LED is flashing quickly Try resetting the unit by disconnecting it from the AC mains power waiting a few seconds and reconnecting the amplifier to power If this does not solve the problem contact your Class dealer for assistance 29 30 Specifications All tests un weighted and 500kHz measurement bandwidth except SNR W Frequency response 1112 80kHz 3dB B Output power 300W rms into 80 24 8 dBW 600W rms into 40 27 8 dBW B Harmonic Distortion 0 00296 2 1kHz balanced 0 00496 1 kHz single ended Peak Output Voltage 150V peak to peak 53V rms no load 136V peak to peak 48V rms into 8Q Input Impedance 50kQ balanced single ended Voltage gain 29 dB balanced single ended W Input level at clipping 1 88V rms balanced single ended intermodulation Distortion 90dB below fundamental into 80 balanced single ended gt 90dB below fundamental into 4Q balanced single ended Signal to noise ratio 116dB at peak output into 80 Measurement Bandwidth 22kHz E Output Impedance 0 0150 e 1kHz W Standby power consum
13. status amp info d gt NOTE This feature is only accessible when the target amplifier is on Reserved for amplifiers this feature is a protection circuitry event log which can only be accessed when the target amplifier is in standby The protection circuit shuts down the amplifier or channel if it overheats or if its output could damage your speakers The event log details the circumstances surrounding the amp going into protection and should be referred to in situations that require the intervention of your dealer or Class customer support The log can report the following events interpreted as follows ve slow blo trip amp ve slow blo trip The average current has reached the safe operating limit ve fast blo trip amp ve fast blo trip The peak current has reached the safe operating limit over temperature trip The unit temperature has reached the safe operating limit DC protection trip The DC output level has reached the safe operating limit Communication failure There has been a loss of communication between the amp s system monitoring sensors ACline trip The power supply has reached the limits of the amps safe operating range Air intake filter The intake filter is constricting airflow and should be cleaned This event is also triggered after every 2 000 hours of operation even if the sensors do not yet detect constricted airflow The unit will co
14. 259mm 1 16 00 406mm 878 223mm 1 D 1 L __ 1 1594 405mm 10 21 259mm 1 1 1 o e 1 go 5 o 10 76 2 e 273mm E E 17 52 M pn 445mm 5966 18 83 Es 478mm eo 9 PS o LY G Y murder 31 32 CT M300 19 00 483mm IT AI 19 89 442mm 505mm 432mm CLASSE Class Audio 5070 Francois Cusson Lachine Quebec Canada H8T 1B3 1 514 636 6384 1 514 636 1428 fax http www classeaudio com email cservice classeaudio com North America 1 800 370 3740 email classe bwgroupusa com Europe 44 0 1903 221 700 email classe bwgroup com Asia 852 2790 8903 email classe2bwgroup hk All Others 1 514 636 6394 email cservice classeaudio com Copyright 2009 Class Audio Inc Printed in Canada V 1 4 092210
15. LASSE Front Panel 1 Standby button amp LED indicator The front panel Standby button will toggle the amplifier between operate its fully operational state and a standby mode that leaves the amplifier off yet ready to respond to system commands via any of the supported control options e g IR input DC trigger CAN Bus or RS 232 The current state of the amplifier is indicated by the LED indicator in the Standby button The state of this LED indicates the following on dim red standby e flashing blue on power up initialization on blue operate e flashing after power up AC mains voltage out of range the air intake filter needs to be cleaned protection circuit s engaged flashing alternating red blue slow flashing red 12 Caution When in standby the amplifier s gain stages are powered down Only a small power supply and control circuit remain on consuming relatively little power Fortunately since the output stages by their nature conduct a great deal of current they warm up and sound their best very quickly If you are not going to use the amplifier for an extended period of time we suggest you disconnect it from the AC mains Please be certain that the amplifier is in standby prior to disconnecting it from the AC mains Also it is a good practice to physically disconnect any and all valuable electronics from the AC mains during electrical storms as a lightnin
16. Placement and connect it to the AC mains This includes deciding on the location making sure you have adequate ventilation and adequate clearance for all the wires behind the amplifier Once accomplished connect the amplifier directly to the AC mains Do not use extension cords as most are not suitable for the current sometimes required by your amplifier FOR RACK MOUNTING INSTALLATION CONTACT YOUR CLASSE PROFESSIONAL NON RACK MOUNT INSTALLATION FOR CT M300 la Install 4 feet and secure with 4 6 flat washers and 4 6 32 X 9 16 philips pan head screws e lt Tighten to 5 0 in Ibs 0 56 N m Important Optional accessory feet can be purchased and installed as follows 1b Install 4 accessory feet FC90902 and secure with 8 6 32 X 3 4 screws Tighten to 8 5 in Ibs 0 96 N m Install 2 securing brackets when using the CT M300 in a stand alone non rack mount installation 2 Install left and right faceplate securing brackets L7326 for CT SSP and CT AMPS and L7909 for CT 5300 secure with 4 8 32 X 3 8 philips pan head screws Tighten to 5 0 in Ibs 0 56 N m 20 Configure your amplifier turn on delay amp no In a system that contains multiple Class amplifiers you may set the number of seconds of turn on delay for each amplifier allowing each to turn on in the order you have specified rather than all at once This number also acts as an ID when using the CAN Bus
17. are in constant communication creating a global network that delivers system wide status information and shared operational features all through the touchscreen display CAN Bus will allow a Delta or CT series touchscreen to Display status information for every connected unit including amplifiers which do not have a touchscreen display Create a PlayLink that allows an SSP or Preamp to automatically switch to the correct input when a Delta series source component starts playback Adjust the global system brightness Configure the entire system to go in and out of standby at the touch of a button and also bring individual components in and out of standby Mute any connected unit Class Delta or CT Series Products Two or more Class Delta or CT series products are required at least one of which must have a touchscreen display Category 5 Network Cables These are ordinary network cables commonly used for broadband Internet connections They should be typical straight through cables not the crossed over type and the total required will be one less than the total number of Delta and or CT series components in your system CAN Bus Terminator A single CAN Bus Terminator may be required It is inserted into the CAN Bus OUT connector of the last component in the CAN Bus daisy chain One is included in the box with your CT amplifier They are also available free of charge from your nearest Class Customer Suppo
18. by automatically perhaps in concert with the A V preamp itself Two s inch mini mono jacks provide this remote controlled turn on that is toggling between operate and standby of the amplifier These jacks provide a simple pass through of the control voltage from one to the other allowing you to daisv chain a series of amplifiers quite easily The remote trigger will be operated by the presence of 5 12 Volts DC with tip polarity as shown below 5 12 volts ST less than 100 mA RS 232 Control Port This DB 9 connector has two purposes downloading new operating software into your amplifier should new features ever be added for example e for external control of your amplifier by systems such as AMX Crestron and Control 4 For more information please contact your dealer and ask about home automation systems USB Control Port The USB connector provides the same functionality as the DB 9 connector described above It is compatible with the USB ports on PCs and may obviate the need for a USB to RS 232 adaptor AC Mains Input An IEC standard power cord supplied is used with the CA M300 CT M300 Plug the cord into the IEC receptacle on the rear panel and the other end into a suitable wall outlet AC Mains Fuse Your Class power amplifier has an AC mains fuse accessible on the rear panel If you suspect that your AC fuse has blown disconnect your amplifier from the AC mains as well as from its input
19. dio world for preserving the delicate nuances of extremely small microphone level signals For many years now they have also been used by performance oriented companies such as Class to preserve every nuance of the finest audio performances in your collection 14 Technically balanced audio interconnections provide two distinct benefits they double the signal s strength as it travels from one component to the next increasing the potential Signal to Noise ratio by 6 dB they also do an excellent job of rejecting noise and interference that might otherwise be picked up between the components due to either EMI electromagnetic interference or RFI radio frequency interference In the world of wireless telecommunications there is more potential interference around than ever before it makes sense to keep it out of music and movie soundtracks For this reason we strongly recommend using the balanced analog interconnections between your Class components wherever possible The pin assignments of these XLR input connectors are PTS Pin 1 Signal ground l Pin 2 Signal 4 non inverting Pin 3 Signal inverting Connector ground lug chassis ground These pin assignments are consistent with the standard adopted by the Audio Engineering Society AES14 1992 If you are using your Class power amplifier with a Class preamplifier processor youre all set just remove the supplied shorting pins from the amplifier
20. ed way as a result of both accelerated aging experiments and actual long term experience we are able to design and manufacture products which we are confident will stand the test of time We are confident that your new Class amplifier will give you many years of trouble free reliability and musical enjoyment just as previous Class products have given their owners 10 robust protection Finally your new Class amplifier incorporates a variety of protection circuits all designed to protect both the amplifier and your loudspeakers against dangerous fault conditions Significantly these protection circuits do not intrude upon or limit the normal performance of the amplifier rather they simply put the amplifier into protection mode when confronted with abnormal conditions These conditions include output overload DC offset AC mains voltage outside of normal tolerances excessive operating temperatures If any such conditions occur any of which might harm either your amplifier or possibly your loudspeakers the amplifier will immediately go into protection mode In such a case a Standby LED indicator will blink red until the fault can be righted and the amplifier is re started by pressing and holding the standby button Likewise if the AC mains voltage is out of range the Standby LED will blink In all cases the unit will need to be re started once the cause of the fault condition has been rectified C
21. ent they are snug Further tightening will not make a better connection and taken to the extreme may damage the connectors Double check all your connections We understand that this step sounds redundant but it is worth the extra minute or two it might take just to ensure that all connections are correct and secure before plugging the power cables to the AC outlets Turn on all the other components in your system and then turn on your amplifier It is always good practice to turn any power amplifier on last and to turn it off first Doing so prevents any turn on turn off transients that might originate in other components from damaging your loudspeakers CAN Bus features hardware setup Install the front panel CT M300 only Once all connections have been made and the amplifier is verified to be working correctly remove the front panel from its packing and firmly press it into place NOTE If the CI M300 is NOT installed in an equipment rack the front panel should be secured to the chassis using the supplied security tabs These will prevent the faceplate from unexpectedly popping off if someone should try to lift the amplifier by its front panel Class s Controller Area Network or CAN Bus opens the way to a new level of interaction between our Delta range of amplifiers preamps processors and source components When the amplifier is connected with CAN Bus the different elements of a Delta or CT series system
22. enters standby mode it will require reset to operate normally press and hold the standby button Use this opportunity to check and clean the air intake filter Remove the front panel CT series amps or the air intake cover Delta series amps to access the filter 27 28 Troubleshooting In general you should refer any service problems to your Class dealer Before contacting your dealer however check to see if the problem is listed here 1 sound and Standby LED is not lit e The amplifier is not plugged into the AC mains or the AC mains are down circuit breaker fuse A brown out or short term loss of power might require the internal microprocessor to be reset Unplug the unit for at least 30 seconds and then plug it in again and try powering it up The AC mains fuse is blown See Troubleshooting 4 below or contact your Class dealer The AC mains is out of range Check the voltage specified on the rear panel 2 No sound and Standby LED is blinking red Your protection circuitry has been engaged The most likely cause is the check filter interval The amplifier is programmed to flash its standby LED after every 2 000 hours in the operate mode as a reminder to check and clean the air intake filter The amplifier continues to play after the 2 000 hour threshold is crossed but once entering the standby mode the amp will require a reset See Care and Maintenance Press and hold the standby button
23. g strike anywhere near your home can put a tremendous surge on the AC mains that can easily damage any piece of electronics no matter how well designed and protected The best protection in the case of severe electrical storms is to simply remove the electronics from any connection with the power grid If you see the Standby LED indicator blinking red please check that all external connections are cleanly made and secure If no fault is immediately obvious try to reset the amplifier by pressing and holding the standby button If the unit does not reset or continues to enter protection mode please call your authorized Class dealer for assistance 9 E Eel CAN BUS RS 232 5 8 OUTPUT e Q ix oe I Y NI A o9 8 605 10 9 3 2 U ro n Fall e Quo 7 fi ea jil J 5 o o o Rear Panel The following descriptions are intended as a quick reference should you have any questions about your new product Please see the next section entitled Initial Setup for specific advice on incorporating your new amplifier into your system 1 Balanced XLR Input Balanced audio interconnections were originally developed for the telephone and more recently in the professional au
24. has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Do not expose this apparatus to dripping or splashing and ensure that no objects filled with liquids such as vases are placed on the apparatus WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO REDUCE THE RISK OF ELECTRICAL SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of suf ficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of im portant operating and maintenance servicing instructions in the literature accompanying the product Contents Welcome to the Class family A Word about Unpackina and Placement UNpacking your amplifier rtt teet 6 placement m 6 ME mc EE 6 custom installatiols
25. he AC cord and connecting cables must be left behind the amplifier We suggest leaving six inches 15 cm of free space behind your power amplifier to allow all cables sufficient room to bend without crimping or undue strain Your Class power amplifier generates a certain amount of heat in the course of normal operation The vents on both the bottom and the top of the amplifier must be kept free from any obstruction which would reduce the flow of air through the unit Avoid placement on soft surfaces that would restrict airflow such as plush carpeting Drawings are included in this manual to facilitate special installations and custom cabinetry see the section Dimensions A purpose designed rack mount kit is included with the CT M300 Contact your Class dealer for more information The serial number for your power amplifier is found on the rear of the unit Please note and record this number on the page entitled Important Safety Instructions for your future reference operating voltage Warning The amplifier is set at the factory internally for 100V 120V 220V 230V or 240V AC mains operation as appropriate for the country in which it is to be sold 230V only in European Union countries in compliance with CE regulations The voltage setting may not be changed by the user or dealer Make sure that the label on the rear panel of your power amplifier indicates the correct AC operating voltage for your location Attempti
26. ith identical yet separate signals Many high quality loudspeakers also offer two sets of connections on their speakers Generally one set of the connections on the loudspeaker feeds the portion of the speakers crossover network that supplies the woofer with its signal the other set of connections connects to the portion of the crossover that supplies the rest of the speaker with the midrange and high frequencies Although the binding posts on your Class amplifier will accept bare wire connections we strongly recommend the use of high quality spade or hook lugs crimped and soldered onto the ends of your speaker wires Using high quality connectors will ensure that your speaker connections do not gradually deteriorate from fraying and oxidizing bare wires It also helps prevent accidental short circuits from poorly terminated connections Class CAN Bus Control Ports These RJ 45 connectors are reserved for control and communication applications using Class Audio s implementation of the Controller Area Network CAN Bus specification Refer to the CAN Bus section located later in this manual for more information IR Input and Output Your Class amplifier includes two s inch mini mono jacks in order to support the IR remote controls that are ubiquitous today IR commands exist for toggling the amplifier between operate and standby as well as discrete command codes for either operate or standby These codes may be used in
27. ith the second accessed by selecting more The status screen is the simplest way to access essential information about the target unit It displays the target unit s model number software version operational status and serial number Allows you to set the name that this component will be listed under in the CAN Bus devices screen The name will appear next to the unit model and serial number and facilitate the identification of units in large systems By setting all your components to global brightness you can adjust the touchscreen and LED brightness for your entire system by changing the brightness of a single touchscreen All CAN Bus software updates automatically set the updated unit to Global Brightness If you want a particular unit to be excluded from Global Brightness deselect Global Brightness for that unit By setting all your components to global standby you can bring your entire system in and out of standby by pressing the standby button of any unit or remote All CAN Bus software updates automatically set the updated unit to global standby If you want a particular unit to be excluded from global standby deselect global standby for that unit CAN Bus model specific features PlayLink The following CAN Bus features are model specific This feature is exclusive to Delta series disc players and will only function if the disc player is connected to a CAN Bus enabled preamp or surround sound processor When PlayLink
28. ng procedure for a blown AC mains fuse since this rare occurrence sometimes indicates a significant problem Please use the following steps in order a Disconnect your amplifier from the AC mains as well as from its input connections and speaker connections and remove the fuse cover on the rear of the unit b If the fuse appears to be blown replace it only with a fuse of the same type and rating specified below Using any other type of fuse particularly a larger value fuse can result in permanent damage to your amplifier If you are not comfortable replacing the fuse yourself contact your Class dealer for assistance Mains voltage 100 120VAC Fuse type IEC time lag high breaking capacity Rating 6 3A 250V Mains voltage 220 230 240VAC Fuse type TEC time lag enhanced breaking capacity Rating 3 15A 250V c After replacing the fuse and fuse cover reconnect the amplifier to the AC mains only and turn it on without reconnecting either the inputs or the speaker wires If the fuse blows again disconnect it from the AC mains and contact your Class dealer for assistance d If everything seems fine place the amplifier back into standby and carefully reconnect the input cable and power the amplifier up If the fuse then blows or the amplifier goes into protection you may have a serious fault with your preamplifier processor Contact your Class dealer e Finally if everything is still fine place the amplifier in
29. ng to operate your power amplifier at an incorrect voltage may damage the unit The voltage setting of your power amplifier may not be changed by the user There are no user serviceable parts within the unit Please refer any problems to an authorized Class service center If the AC mains voltage indicated on your power amplifier is incorrect please contact your local authorized Class dealer or distributor The amplifier can easily be powered by a normal 15 or 20 ampere AC mains line If other devices are also powered from the same AC line their additional power consumption should be taken into account The amplifier includes protection circuitry that will prevent the amplifier from operating at dangerously high or low voltages Atstartup the AC mains voltage must be within a range of approximately 15 to 10 of its nominal value at startup or the amplifier will not turn on For example a 120V unit requires the AC mains to be between approximately 95V 135V in order to turn on Over voltage during operation if the AC mains voltage surges by roughly 1096 or more during operation the amplifier will enter protection mode and shut down The Standby LED will flash to indicate the protection mode has been engaged Under voltage during operation if the AC mains voltage sags by 15 or more the amplifier will continue to play since this does not present a particular danger to the amplifier but note that it may not be
30. ntinue to operate with its standby LED flashing until the filter is checked and the unit reset by pressing and holding the standby button for 3 seconds Events are rare and generally occur due to issues that are external to the amp They should be interpreted positively The amp is doing what it s designed to do Caution Care and Maintenance To remove dust from the cabinet of your amplifier use a feather duster or a lint free soft cloth To remove dirt and fingerprints we recommend isopropyl alcohol and a soft cloth Dampen the cloth with alcohol first and then lightly clean the surface of the amplifier with the cloth Do not use excessive amounts of alcohol that might drip off the cloth and into the amplifier At no time should liquid cleaners be applied directly to the amplifier as direct application of liquids may result in damage to electronic components within the unit From time to time the air intake filter will need to be vacuum cleaned or removed and rinsed with clean fresh water A pressure sensor measures the airflow to determine when it is necessary to clean the filter When cleaning is required the Standby LED will flash red blue and a message will be sent to connected touchscreen controlled devices via the connected CAN Bus system Since this is a maintenance and not a protection feature the amplifier will continue to operate while the LED is flashing so as not to interrupt a listening session Once the amplifier
31. ption 1W 230V W Rated power consumption 420W 1 8th power into 80 B Overall Dimensions CA M300 Width 17 50 444mm CT M300 Width including faceplate 19 483mm CT M300 Width excluding faceplate 17 432mm CA M300 Depth excluding connectors 17 52 445mm CT M300 Depth excluding connectors 18 625 473mm CA M300 Height 8 78 223mm CT M300 Height 6 97 177mm W Gross weight CA M300 87155 39 46 kg CT M300 96155 43 50kg Net weight CA M300 75 155 34 0 kg CT M300 76155 34 5kg E Mains voltage Specified on rear panel For more information see your Class dealer or contact Class Audio 5070 Fran ois Cusson Lachine Quebec Canada H8T 183 Telephone 1 514 636 6384 FAX 1 514 636 1428 Internet http www classeaudio com email cservice classeaudio com Class and the Class logo are trademarks of Class Audio Inc of Lachine Canada All rights reserved AMX is a registered trademark of AMX Corporation of Richardson TX All rights reserved Crestron is a trademark of Crestron Electronics Inc of Rockleigh NJ All rights reserved Control 4 is a trademark of Control 4 Corporation of Saltlake City UT All rights reserved CA M300 Dimensions 17 50 444mm 10 20
32. raged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help CAUTION Changes or modifications to this equipment not expressly approved by the manufacturer could void the user s authority to operate the equipment The information contained in the manual is subject to change without notice The most current version of this manual will be posted on our web site at http www classeaudio com Class marks the CE symbol indicating compliance of this device with the EMC Electromagnetic Compatibility and LVD Low Voltage Directive standards of the European Community Class complies with the European Parliament and Council Directive 2002 96 EC concerning Waste Electrical and Electronic Equipment WEEE This product must be appropriately recycled or processed in accordance with these directives Consult your local waste disposal authority for guidance e Class products are designed and manufactured to comply with the Restriction of Hazardous Substances RoHS A as stated in the European Parliament and Council Directive 2002 95 EC 10 11 12 13 14 15 gt gt Important Safety Instructions Read these ins
33. rt Centre http www Classeaudio com support service htm SSP 300 amp 600 CAN Bus Interface Box Systems that include an SSP 600 or SSP 300 will also require an SSP 300 600 CAN Bus Interface Box These are included with the products or available free of charge from your nearest Class Customer Support Centre http www Classeaudio com support service htm 21 22 The diagrams below illustrate how to connect the CAN Bus hardware Any combination of models in any order NOTE Daisy chain may need to be terminated with CAN Bus Terminator using CAN Bus CAN Bus is controlled via the touchscreen of any Delta or CT series component There is no master component so Delta CT series systems where two or more units have a touchscreen can be controlled through any of the touchscreens However it is probably easiest to start using CAN Bus through just one CAN Bus is accessed by pressing the menu button on the face of the unit or remote then the status button followed by the more button status tox CAN bus nome lt J devices lt status pre stopped J Sut media DVD system setup 2 triggers video 2 channels none 202 1832545 Re s tracks title O has 10 chapters 2 05 33 teach IR remote Fkeys ange Oof1 CP 500 1641150 f 59 6 d CA 2200 1584489 Cv display setup 3 status gt version info
34. specifically for rack mount installations although it may just as easily be placed on a shelf in a traditional cabinet or on the floor near the speaker s The size and shape of your room its acoustics and the associated equipment you have chosen to use with your amplifier all influence the ultimate performance of your system For this reason we strongly encourage you to have your system installed and calibrated by your dealer whose experience training and specialized equipment can make a profound difference in the final performance of the system unpacking your amplifier Important placement ventilation custom installations serial number Unpacking and Placement Carefully unpack your power amplifier according to the supplied instructions and remove all accessories from the carton Please take care when lifting the amplifier as it is quite heavy Keep all packing materials for future transport of your Class amplifier Shipping your new component in anything other than its purpose designed packing material may result in damage that is not covered by the warranty Many installations will utilize an equipment rack although a shelf a traditional cabinet or the floor near the speaker s are acceptable alternatives In any case take care to position it well away from source components and preamp processors which may be sensitive to the amplifier s electromagnetic fields Note that adequate clearance for t
35. to reset the amplifier Ifthe amplifier does not reset or continues to go into protection mode disconnect the amplifier from the AC mains and disconnect all inputs and outputs fit powers up without any difficulty power it back down and reconnect only the inputs Then restart the amplifier If it goes into its blinking protection mode something is wrong with a component upstream of the amplifier probably a DC offset or similar problem Your amplifier is trying to protect your loudspeakers even small amounts of DC can increase distortion and damage speakers in relatively little time Try different source components to discover whether the problem is limited to a single source or exists all the time which would indicate a problem with the preamplifier processor Contact your dealer for help with the appropriate component 3 The amplifier keeps shutting off Make sure you are providing adequate ventilation to the amplifier and that the ambient room temperature is below 105 F 40 C Run through the troubleshooting sequence outlined above assuming the amplifier is going into its protection mode The amplifier logs all protection circuit events These are viewable on the touchscreen of a CAN Bus connected Class component or by your dealer on a PC using a special diagnostic program Contact your dealer to assess the likely cause of the trouble 5 The AC mains fuse is blown There is a specific troubleshooti
36. tructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturers instructions Do not install near any heat sources such as radiators heat registers stoves or other apparatus that produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Only use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid in jury from tip over Unplug this apparatus during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid
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