APart CHAMP-3D audio amplifier
Contents
1. MANUAL J ANA CHAMP 3D Audiophile Digital Power Amplifier INFO APART AUDIO COM Safety first e Caution hot and sharp surfaces This professional device needs to be installed by qualified personnel only e Please check the packing for any kind of damage upon reception of the goods If the packing is damaged please contact your dealer before opening it 11 Danger Exposure to high sound pressure levels may cause permanent hearing loss Hearing loss induced by exposure to high sound pressure levels will vary from individual to individual but nearly everyone will lose some hearing when exposed for a sufficient amount of time Therefore it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplifier wear sufficient ear protection while installing or operating this unit Read all documentation before operating your equipment e Keep all documentation for future reference e Keep the carton and packing material even if the equipment has arrived in good condition e Should you ever need to send the unit back use only the original factory packing Do not spill water or other liquids on or into the unit e Make sure power outlets conform to the power requirements listed on the back of the unit e Do not use the unit if the electrical power cord is damaged e Always operate the unit with the AC ground wire co2. i A 20 100 The line at the top shows a peaking equalizer with a relatively low Q factor or wide bandwidth Boost level is 9dB center frequency is 1 kHz This type of equalizer corresponds to the typical mid tone control found on most audio equipment Red line shows a peaking equalizer with a rather high Q factor or low bandwidth Cut level is 6dB Center frequency is 100 Hz Lo and Hi shelf equalizer 12 A 12 20 100 10k 20k The line at the top shows a high shelf equalizer the red line shows a low shelf equalizer These types of equalizer correspond to the typical bass and treble tone controls found on most audio equipment INFO APART AUDIO COM l DELAY menu The delay can be adjusted in steps of 291 6667 us which is the time necessary for sound to travel 10 cm in dry air at 20 C For convenience the delay time is expressed in meters not us The delay menu contains the following submenus LEFT DELAY set the delay from to 6 meters in 0 1 meter steps for the left channel RIGHT DELAY set the delay from to 6 meters in 0 1 meter steps for the left channel O meters corresponds to milliseconds or no delay OFF 6 meters corresponds to 17 48 milliseconds at 20 C dry air speed of sound equals 343 2m s
3. INC or DEC is used and no value is specitied the detault step value 1 is used Valid values ranging from 1 to 10 can be specified when using INC or DEC commands When using the SET command you can specify a value within the range of possible values for example you want to set the master level to 45dB without knowing the actual level the command looks like this SET MASTER 45 Not all possible commands require a value If a value is necessary or optional it will be mentioned Please note that all audio related parameters that have been edited will be lost after cycling the power unless the instruction SET STORE ON is sent LEVEL here you can set the level of the channels relative to each other it is advised to leave this parameter set to O unless you want to decrease the level of the subwoofer by tor example dB In this case the command looks like this SET LEVEL SUB 3 Please note that this parameter will NOT change if the MAXLEVEL is set to a value lower than the LEVEL value MAXLEVEL here you can specify the maximum level for each channel individually Possible commands are SET GET INC DEC Please note that the lowest LEVEL or MAXLEVEL parameter will be used As a consequence when MAXLEVEL value is lower than LEVEL value the LEVEL will change to the value of MAX LEVEL INFO APART AUDIO COM MAXMASTER set this parameter to desired maximum mast
4. MASTER and MAX MASTER just proceed to the next step by pushing the upper arrow After adjustment press the upper button to enter the LOCK MODE menu Adjust the mode if necessary If you select VOL ONLY or LOCKED you will be asked if you want to change the password If you don t change the password the previous password will remain valid Important parameters such as crossover frequency filter type equalizer settings and limiter thresholds will be optimized You can of course adjust certain parameters such as equalizer setting subwoofer phase and delay settings to match your specific situation We do not recommend changing the maximum specitied levels because this may result in damage to your speakers INFO APART AUDIO COM 55 Top type means crossover type for L R channels This parameter is linked tor both channels Sub type means crossover type for the Sub channels There are different types of crossover characteristic selectable OFF gt no crossover the channels work at full range valid tor L R amplifiers only L R 48 gt Linkwitz Riley 48 dB octave default L R 24 gt Linkwitz Riley 24 dB octave L R 12 gt Linkwitz Riley 12 dB octave BUT 48 gt Butterworth 48 dB octave BUT 24 gt Butterworth 48 dB octave FIRST6 gt First order filter or 6 dB octave Sub freq and freq means the crossover frequency This is freely selectable Sub lo cut
5. beings In extreme conditions human beings are not able to pertorm efficiently This also applies to amplifiers It is generally bad idea to mount multiple heat generating units such as amplifiers in the same rack If necessary use a forced ventilation system in your mounting rack The mains fuse is located inside the unit When the fuse is broken replace it with a fuse of the same current and voltage rating 6 3 AT 250V For qualitied personnel only This unit has NOT been designed for use in mobile applications such as mobile disco bars and DJ setups mobile PA systems live bands audio rental systems Use it in tixed installations only Block diagram HYPEX D CLASS HI CURRENT AMPLIFIER DELAY LIMITER r r lee HYPEX D CLASS 24 BIT MASTER AUTO MAIN ADC LEVEL LOUDNESS COMPRESSOR X OVER HI CURRENT AMPLIFIER L R SUBSONIC LIMITER HYPEX D CLASS HI CURRENT AMPLIFIER INFO APART AUDIO COM Technical specitications Dynamic program power per channel left right amp 370W 4 530W 2 70 2 balanced euroblock THD L R amp lt 0 1 100W 4Q 1kHz A weighted THD Sub amp lt 0 1 500W 20 80Hz A weighted Frequency response 10 24 kHz 0 3dB Analog digital volume control analog via external volume control digital internal control Built in DSP yes featuring compressor limiter crossover subwoofer phase control 4 band fully parametric automatic lo
6. case you want to use 2 pieces 4 ohm subwoofers then wire them independently One sub connected to 10 the second to 11 Always make use of the 4 connection pins 1 and 2 1 and 2 to avoid contact burn in caused by the extreme currents flowing through these connectors 12 Right speaker output on 4 pole Speakon connector 1 and 2 as well as 1 and 2 are connected in parallel Always make use of the 4 connection pins 1 and 2 1 and 2 to avoid contact burn in caused by the extreme currents flowing through these connectors 13 Left speaker output 4 pole Soeakon connector 1 and 2 as well as 1 and 2 are connected in parallel Always make use of the 4 connection pins 1 and 2 1 and 2 to avoid contact burn in caused by the extreme currents flowing through these connectors 14 Ground lift switch this switch normally stays in the EARTH position In case you have created a ground loop you can switch it to the LIFT position to help you find the source of the ground loop However when the ground loop is severe activating the switch will not help much and eventually one or more system components may fail When excessive noise hum or system instability occurs power off all devices and start connecting all units individually Tuners connected to an outdoor antenna or a cable signal distribution system computers serial control devices and laptops are the usual suspects 15 Mains inlet connector plug in the
7. down e LEFT AMP SHUT DOWN the left channel amplifier has shut down due to an error supply voltage error or short circuit on the output RIGHT AMP SHUT DOWN the right channel amplitier has shut down due to an error supply voltage error or short circuit on the output e LEFT AMP DC ERROR the left channel amplitier has encountered a DC offset error and has shut down RIGHT AMP DC ERROR the right channel amplitier has encountered a DC offset error and has shut down INVALID EXT VOL the external volume control option has been enabled while no external volume control is present at the rear connector or the external volume potentiometer value is out of range INPUT OVERLOAD the analog input is overloaded this can be caused by an incompatible system configuration or a severe ground loop e SUB AMP OVERLOAD the subwoofer amplifier is being overloaded due to extremely low load impedance or a short circuit LEFT AMP OVERLOAD the left channel amplitier is being overloaded due to extremely low load impedance or a short circuit RIGHT AMP OVERLOAD the right channel amplitier is being overloaded due to extremely low load impedance or a short circuit When one of the above mentioned errors has occurred we strongly advise to switch of the unit Then disconnect all inputs and outputs and power on again In case external volume control is enabled disable the external volume control in the settings menu and chec
8. protection which is accessible ONLY via the front panel controls For example it is possible to edit the standard text appearing on the display using RS232 commands On the following pages we will explain the possibilities of remote control via RS232 In case you might experience RS232 communication problems consult an experienced system engineer to get you started Port settings are fixed at 19200 baudrate 8 databits no parity no handshake LF line feed BS backspace and ECHO parameters are not enabled by default They can be enabled using an RS232 command string We strongly advise not to change any RS232 communication related parameters Instructions are not case sensitive Each command must end with lt CR gt When the instruction has been executed the unit will send a reply provided that a parameter or setting has been changed It the parameter value is already equal to the value specified in the instruction no parameter will be changed so the unit will not reply The reason is obvious only changes are reported It is possible to retrieve a value by using the GET command E g GET MASTER INFO APART AUDIO COM I IMPORTANT When the command SET GET INC DEC is invalid the unit will send ERROR Unknown Command When an invalid attribute is sent the unit will reply ERROR Unknown Attribute When you attempt to send an instruction with a val
9. will not be available LED VU Meter LEFT RIGHT In normal situations the LED VU meter indicates the channel s output level where O dB is the absolute maximum The LED s will light up in green showing the actual output level When the push button beneath the VU meter is pushed once the channel is muted The SGL ERROR LED will light up orange When the SGL ERROR is red an error has occurred and the channel will be disabled or muted until the error is removed When the master level is turned up the output level will increase When the maximum sate level is reached the internal compressor will reduce the output signal The upper LED s in the VU meter will become orange to indicate the measure of automatic gain reduction When the O dB LED lights up red the amplitier is clipping Always avoid clipping LCD Display When in use the display will show the user definable text Default text is CHAMP 3D large font This text and the font type can be changed via RS232 instructions The actual master level is also shown in this case 72 dB Pushing the push button next to the arrow will allow you to enter the main menu The next screen will pop up INFO APART AUDIO COM You will notice that an up and down arrow has appeared next to the push buttons Use these to scroll through the different menus When you want to enter a menu in this case the LEVELS menu is highlighted push the
10. will not increase the master level When the LEVELS and MAXLEVELS menu is used the SGL ERROR LED s will light up in green showing you which channel is selected In some cases you can edit the parameters of multiple channels simultaneously When this is the case the selected channel will light up strong while the selectable channels will light up weak Push the channel select buttons simultaneously to select them for simultaneous parameter editing the green channel LED s will light up strong and the editable parameter for the selected channels will be highlighted in the LCD display In some menus such as the equalizer and crossover menu the left and right channel parameters are automatically linked The green channel LED s will automatically light up strong for both channels SPEAKER WIZARD The speaker wizard menu offers you an easy way to automatically adjust all audio related parameters for optimum compatibility with our most popular speaker sets Enter the speaker wizard menu and follow the on screen instructions choose the number and type of speakers in your set up First select the type and number of speakers used in your system subwooter s as well as top speakers Atter speaker selection the following message will appear in the screen CHANGE MASTER AND MAX MASTER LEVEL or PROCEED Adjust the MASTER level to your specitic needs The value of the MASTER level will be used as MAX MASTER If you don t want to set the
11. 2 1 amplifier with Hypex audiophile Class D digital amplifier modules e High end operational amplifiers in the analog signal path e High thermal efficiency typically 92 e Exceptionally high damping factor for tight bass response All the benefits of a Class D amplifier with the highly appreciated classic analog amplitier sound Design without fans oversized convectional cooling traditional power supply unit e Toroidal power transformer and separate power supplies for 2 channel and monoblock amplitiers e Soft start power supply unit Standby function with separate standby power transformer accessible via RS232 Low standby power consumption e Integrated Analog Devices digital signal processor DSP featuring 24 bit analog to digital converters ADC 4 band fully parametric equalizer crossover with freely selectable frequencies and Linkwitz Riley or Butterworth filter characteristics delay compressor and clip limiter Balanced internal analog signal distribution UC controlled operation Intelligent auto loudness system Balanced XLR female and male input connectors and euroblock inputs with pass through 4 pole Speakon output connectors on all channels Extended speaker and amplifier protection circuits DC protection over current protection over temperature protection Real time mains voltage monitoring system disables the amplifiers and main power supply in case the mains voltage is out of r
12. 32 communication serial cables and communication parameters ask for assistance from a qualitied engineer HIWARNING Connecting a computer or any other similar control device via RS232 may cause a severe ground loop Ground loops may cause erratic behavior and eventually damage your system components 3 APNET connector For future use DO NOT connect any kind of computer network cable here It will result in malfunction or damage to your network 4 Right channel XLR male input connector 5 Right channel XLR female input signal connector WWW APART AUDIO COM 6 Right channel balanced input euroblock Items 4 5 and 6 are hardwired internally and can be used to create a daisy chain for connecting even more amplifiers 7 Left channel balanced input on euroblock Items 7 8 and 9 are hardwired internally and can be used to create a daisy chain for connecting even more amplifiers 8 Left channel XLR male input signal connector 9 Left channel XLR female input connector 10 Subwoofer output on 4 pole Speakon connector Pins 1 and 2 as well as 1 and 2 are connected in parallel Minimum load impedance is 4 ohms on each Speakon connector 11 Subwoofer output on 4 pole Speakon connector 1 2 as well as 1 and 2 are connected in parallel This connector carries exactly the same signal as 10 and is hardwired internally Minimum load impedance is 4 ohms on each connector In
13. APART AUDIO COM parameter to OFF Changes will be displayed only when EQ is set to ON EQTYPE possible commands GET SET You have to specify the equalizer band trom 1 to 4 Possible values are OFF HPF LOSHELF PEAK HISHELF LPF A command could look like this GET EQTYPE 3 The unit will reply EQTYPE 3 PEAK indicating that the third band of the equalizer is a peaking type equalizer EQFREQ possible commands GET SET You have to specify the equalizer band from 1 to 4 Possible values are trom 10 to 20000 An instruction could look like this SET EQFREQ 2 1000 indicating that you want to set the equalizer center frequency of equalizer band 2 to 1000 Hz The unit will reply EQFREQ 2 1000 if the frequency is changed and VALFB is ON EQGAIN possible commands GET SET You have to specify the equalizer band from 1 to 4 Possible values are 12 to 12 dB 0 1 dB steps An instruction could look like this SET EQGAIN 2 3 5 indicating that you want to set the equalizer gain of equalizer band 2 to 3 5 dB The unit will reply EQGAIN 2 3 5 EQQFACTOR possible commands GET SET You have to specify the equalizer band from 1 to 4 Possible values are 0 08 0 12 0 18 0 25 0 35 0 50 0 71 1 00 1 41 2 00 2 83 4 00 5 66 8 00 11 3 16 0 A command could look like this SET EQQFACTOR 2 00 The unit will reply EQQFACTOR 3 2 00 DELAY possible comm
14. Linkwitz Riley BUT means Butterworth and the numeric value is the filter slope in dB octave XTOPFREQ possible commands GET SET All values between 10 and 20 000 are possible however practical values are between 80 to 200 Hz This instruction specities the crossover frequency for the left and right channel also called top or satellite channel The parameter is linked tor both channels XSUBTYPE possible commands are GET SET Possible attributes are L R48 L R24 L R12 BUT48 BUT24 BUT12 FIRST This instruction specifies the crossover type for the subwoofer channel XSUBFREQ possible commands GET SET All values between 10 and 20000 are possible however practical values are between 80 to 200 Hz This instruction specifies the crossover frequency for the subwoofer channel SUBLOCUT possible commands GET SET All values between 10 and 80 are possible You can disable this filter by sending SET SUBLOCUT OFF This instruction enables or disables the subsonic filter on the sub channel SUBPHASE possible commands GET SET Binary values are ON OFF This command specifies the electrical phase between subwoofer and L R speakers default is PHASE OFF meaning O phase difference between both ON means 180 or phase reverse EQ possible commands GET SET Binary values are ON OFF Please note when equalizer is OFF obviously you will not be able to hear any change When no equalizer is in use set this 16 WWW
15. The delay can be adjusted in steps of 291 6667 Ls which is the time necessary for sound to travel 10 cm in dry air at 20 C For convenience the delay time is expressed in meters not us The delay menu contains the following submenus LEFT DELAY set the delay from to 6 meters in 0 1 meter steps for the left channel RIGHT DELAY set the delay from to 6 meters in 0 1 meter steps for the left channel O meters corresponds to milliseconds or no delay OFF 6 meters corresponds to 17 48 milliseconds at 20 C dry air speed of sound equals 343 2m s 5 CONTRAST set the contrast of the LCD display AUTO LD set automatic loudness ON or OFF EXT VOL enable or disable external volume control using a standard 10 k linear potentiometer 10V source LOCK MODE choose lock mode UNLOCKED VOL ONLY or LOCKED When you change the lock mode trom UNLOCKED to LOCKED or VOL ONLY you will be asked to change the password Default password when leaving the menu is 1 2 3 4 Maximum number of characters is 4 When you choose to change your password you can enter it by turning the rotary encoder the selected character will change Move the cursor to the next character by pushing the uppermost button right arrow and so on To enter the password please follow the same procedure When the password is lost you ll be unable to unlock the unit Contact your authorized dealer for assistance When you choose LOCKED
16. and GET Use this instruction to get status information via RS232 SERIAL possible command GET Use this instruction to get the serial number from the unit HWVRSN possible command GET Use this instruction to get the hardware version SWVRSN possible command GET Use this instruction to get the software version RESTORE possible command SET Binary value ON Use the instruction SET RESTORE ON to restore the factory settings All user detined settings such as equalizer and crossover settings will be overwritten with the factory default settings The unit will automatically shut down and restart with the master level at co The standard password to unlock the unit is this 1 2 3 4 without the brackets We advise you to change this password to a less obvious password in case the lock function is required of course STANDBY possible commands SET Binary value ON or OFF An instruction could look like this SET STANDBY ON in this case the unit will go into standby mode current consumption will be minimal It is also possible to request the power status by sending the GET STANDBY command 18 WWW APART AUDIO COM 52321 possible commands SET Binary value ON OFF With the command SET RS232LOCK ON you can lock operation via RS232 The RS232 lock function will be active ONLY WHEN THE front panel LOCKMODE IS SET TO LOCKED OR VOL ONLY When lock mode
17. ands GET SET You have to specify the channel LEFT RIGHT or ALL for both and also the value between 0 0 and 6 0 in 0 1 meter steps An instruction could look like this SET DELAY RIGHT 2 The unit will reply DELAY RIGHT 2 0 AUTOLD possible commands GET SET Binary values are ON OFF When AUTOLD is ON a gentle boost of low and high frequencies will be applied to the audio signal on low volume settings At high volume settings the effect is gradually switched off EXTVOL possible commands GET SET Binary values are ON OFF Use this parameter to enable or disable the external volume control option Please note that enabling the external volume will always disable the volume control function using the front dial When the unit is locked it will still be possible to control the volume via the external volume control however the maximum set master level will always be respected External volume control will always be in 2 dB steps whereas front dial volume control is possible 1 dB steps This is not a malfunction possible commands GET SET Possible values are LOCKED UNLOCKED VOL_ONLY Suppose you want to lock the front panel operation via an RS232 command this case the command looks like this SET LOCKMD LOCKED The password to unlock the unit can be changed only via the front panel controls not via RS232 This means that any user capable of communicating with this unit is able to unlock the f
18. ange Real time power supply monitoring system disables the amplitiers when the internal DC supply is out of range Lockable front controls password protected parameter access remote operation via RS232 and external volume control using a single external potentiometer 3 lock levels locked unlocked and volume only Individual channel mute select buttons and versatile LED VU meters dot matrix LCD display and rotary encoder User definable display text and font adjustable via RS232 User friendly menu structure with display guidance to access all adjustable parameters Speaker wizard menu with preset x over and limiter parameters optimized for use with our most popular speaker configurations Versatile modular amplifier applicable for both background music systems as well as medium power applications e User definable maximum output level ideal for use in small pubs or other places where maximum sound levels are restricted No need for external sound level controllers All parameters can be locked and password protected e Ground lift switch This unit has NOT been designed for use in mobile applications such as mobile disco bars mobile PA systems Live bands audio rental systems Firmware update possible RS232 port INFO APART AUDIO COM Connections Rear panel layout MOTE CONTROL SEE USER MANA 15 1 External volume control 2 pole eur
19. er level If set to a value of 20 the maximum possible level is 20 dB If the user wants to abuse this setting and increases the level at the input the amplifier will start to reduce the internal gain The VU meter level LED s will change from green to orange indicating that the gain is being reduced In worst case the amplifier will show INPUT OVERLOAD on the display and the lower LED s on the VU meters will blink red When this warning is neglected the amplitier will produce distorted sound What you set is what you get Possible commands are SET GET INC DEC Possible values are between OFF not recommended because the amplifier will not produce any sound and 6 Practical values between 20 and O are recommended MUTE possible commands are SET and GET You have to specity the channel SUB LEFT or RIGHT and also a binary value ON or OFF An instruction could look like this SET MUTE SUB ON The amplifier will mute the sub channel and the SGL ERROR LED on the sub channel will light up orange When the instruction GET MUTE SUB is sent the amplifier will send the sub channel s mute status in this case MUTE SUB ON XTOPTYPE possible commands are GET SET Possible attributes are OFF L R48 L R24 L R12 BUT48 BUT24 BUT12 FIRST This instruction specifies the crossover type for the left and right channel also called top or satellite channel The parameter is linked for left and right channel L R means
20. ing its power on self tests your communication parameters or serial cable are wrong not connected or incompatible We suppose you are familiar with RS232 communication serial cables and RS232 port settings In case you might experience RS232 communication problems consult an experienced system engineer to get you started Cable connections 00000 Pin 2 TX data data transmission output rom 7 eS Pin 3 RX data data reception input Pin 5 GND ground Other pins are not used Cable is wired straight through meaning null modem cables will not work Do not attempt to connect this unit using non compatible cables or untested serial ports When used with a computer beware of possible ground loops caused by the serial port connection Make sure you can access and modity if necessary the serial port settings on your control device computer If you are not familiar with serial control ask for assistance from a qualitied engineer 14 WWW APART AUDIO COM Each instruction has at least a command and an attribute In many cases extra values are necessary such as a numeric or binary value Instructions always have to be ended with lt CR gt carriage return No space between the last character of the instruction and the lt CR gt Instructions are not case sensitive The 4 possible commands are SET GET INC and DEC With the INC and DEC command a step value can be specitied This needs to be posit
21. is set to LOCKED or VOL ONLY it is not possible to unlock the RS232 lock using an RS232 command First unlock the unit using the tront panel controls gt RS232 lock will automatically be unlocked factory default settings if for any reason you feel the need to restore the factory default settings you have to send a command via RS232 SET RESTORE ON The unit will restart automatically and default settings will be written to the internal memory during power up It is not possible to restore the factory default settings via the front panel controls Atter a firmware upgrade all user defined settings will be maintained however it is recommended to check and adjust the settings after a firmware upgrade The newest firmware will be available on our website www apart audio com A firmware updater program will also be available for download In order to update the firmware you need a computer with a working serial port and an appropriate serial cable between Champ 3D and your computer If you are not familiar with serial ports and cables ask for assistance from a qualitied engineer INFO APART AUDIO COM Warning and error messages shown on the LCD display e SUB AMP SHUT DOWN the subwoofer amplifier has shut down due to an error over temperature supply voltage error or short circuit on the output e SUB DC ERROR the subwoofer amplifier has encountered a DC offset error and has shut
22. ive number between 1 and 10 A step value higher than 10 will result in a step value of 10 If no value is specitied default value 1 will be used This means that with every INC or DEC command the value will increase or decrease by 1 step Example the master level is 50 and the following instruction is sent INC MASTER lt CR gt you want to turn up the master volume by 1 step The master level now will be 49 Now the next instruction is sent DEC MASTER 8 lt CR gt you want to turn down the master volume 8 steps at once The master level is now set to 57 because the unit has decreased the master level by 8 steps as requested The unit will reply via RS232 MASTER 57 with VALFB on and provided that the value has been changed or Instruction executed with VALFB off When you send the instruction SET MASTER 99 lt CR gt the unit will set the master level to OFF and will reply MASTER OFF because the lowest possible master level is 80 Since the requested level is below the lowest possible level value the unit will set the master level to the OFF mute position From here commands will be shown between and the lt CR gt or carriage return is omitted in the text for clarity Below is a list with all possible commands and attributes Possible commands are SET GET INC DEC When SET is used a value needs to be specitied This can be a numeric value or a binary value ON or OFF When
23. k if the error still occurs In case overheating is the cause of the error wait for a few hours and allow the amplifier to cool down In case the mains supply is permanently out of range the amplifier will not pass its initial power on self tests and will not switch on First trace the cause of the error remove the error situation and power on again When there is a temporary problem with the mains supply voltage caused by a spike or voltage dip the unit will power down and restart In this case during power on self test there will be additional message Watchdog Reset in the RS232 startup text dump 20 WWW APART AUDIO COM This amplitier relies convectional cooling only In normal situations overheating will not occur Since there are no noisy cooling fans in the amplitier make sure the convectional cooling system can work properly The unit can be built in a 19 inch rack system but it is forbidden to block the ventilation openings at the front rear top and bottom Therefore it is absolutely necessary to allow at least one free rack space or 44 mm above and beneath the amplifier Do not remove the rubber feet in case the amplitier is not built into a rack Make sure the ambient temperature is between O and 40 C Operating the unit beyond its normal limits will result in excessive internal temperature Power amplifiers are hard workers and their behavior is similar to human
24. left channel Some parameters are linked for left and right channels 5 Dot matrix LCD display with blue background light The standard text displayed on the normal screen can be edited using RS232 commands The display shows the actual master level On the right arrow symbols appear These are located next to the three push buttons used for parameter editing The symbols may change to text related to the tunction of the push buttons 6 Menu buttons During normal operation the uppermost button is used to enter return to the main menu the middle and lower buttons are used for scrolling through the available parameters appearing in the display An editable parameter will be highlighted in the display and the value can be changed by turning the rotary encoder The function of the push buttons will change when necessary The function of the push buttons is described on the right side of the LCD dot matrix display WWW APART AUDIO COM 7 Rotary encoder in normal operation you can control the master volume with this encoder When you enter the menu this encoder is used to change the selected parameter value The editable parameter will be highlighted in the display 8 Standby LED this LED lights up when the amplifier is in standby mode The standby function is available via RS232 instruction only When the mains power switch is in the OFF position all electrical circuits will be deactivated and standby mode
25. means the frequency where the 48dB octave subsonic filter will be active Valid parameters are OFF or 10 to 80 Hz Filter slope is L R48 and cannot be changed Sub phase when set to OFF the sub channel is in phase with the L R channels When set to the ON position sub phase is 180 also called phase reverse If the low frequency response of your system is insufficient experiment with the phase setting first Fine tuning can be done via the DELAY menu EQUALIZER EQUALIZER ON or OFF BAND select band 1 to 4 TYPE select equalizer type HPF LO SHELF PEAK HI SHELF LPF FREQ select equalizer trequency GAIN set equalizer gain Q set Q factor All equalizer frequencies can be freely selected These Q factors are selectable 0 08 0 12 0 18 0 25 0 35 0 50 0713 1 00 1 41 2 00 2 83 4 00 5 66 8 0 119 16 0 The higher the Q value the more narrow the bandwidth of the equalizer If you are not familiar with equalizer settings and Q factors leave the Q factor to its default setting of 0 71 HPF stands for high pass filter all frequencies below the selected frequency will be cut LPF stands for low pass filter all frequencies above the selected frequency will be cut NOTE with a Q factor of 0 71 default the 3 dB point equals the selected frequency for HPF and LPF HPF and LPF have a fixed slope of 12 dB octave 10 WWW APART AUDIO COM Peaking equalizer nll
26. mode the user will not be able to change the master level Therefore you must adjust the master level to the desired value and then perform SAVE AND EXIT If you don t save the settings the next time the unit is powered on it will return to the master level that was previously stored The default master level is and no sound will be heard EXT VOL potentiometer connection use a standard shielded audio cable 12 WWW APART AUDIO COM EXT VOL potmeter connection use a standard shielded audio cable CONNECT TO EXT VOL CONTROL CONNECT TO EXT VOL CONTROL Exit the main menu and return to the main screen without saving Please note that some parameters such as system settings will automatically be saved SAVE AND EXIT Exit the main menu and save all parameters that have been changed IMPORTANT Some parameters will not be saved when exiting without saving All audio related parameters are stored in a temporary memory location and will be lost when cycling power In order to save them you need to select SAVE AND EXIT LEVELS MAX LEVELS EQ settings CROSS OVER settings including the PHASE setting of the subwoofer channel AUTO LD setting and DELAY settings must be saved prior to exiting the main menu All system related parameters such as display contrast etc are automatically saved RS232 commands Via RS232 even more features are available with the exception of the password
27. nnected to the electrical system ground e Turn the level controls on the amplifiers all the way down during power up to prevent speaker damage if there are high signal levels at the inputs e Do not connect the inputs outputs of amplifiers or consoles to any other voltage source such as batteries mains sources or power supplies regardless of whether the amplitier or console is turned ON or OFF Power down and disconnect units from mains voltage before making connections Do not use the unit near stoves heat registers radiators or other heat producing devices Do not operate equipment on a surface or in an environment which may distort the normal flow of air around the unit If the unit is used in an extremely dusty or smoky environment the unit should regularly be blown tree of dust e Do not remove the cover Removing the cover will expose you to potentially dangerous volt ages Do not drive the inputs with a signal level higher than that which is required to drive equipment to full output Do not run the output of any amplifier back into another input In case of malfunction this device should be serviced by qualitied service personnel only CAUTION TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER OR BACK NO USER SERVICEABLE PARTS INSIDE SERVICING ONLY FOR QUALIFIED PERSONNEL WWW APART AUDIO COM Features e Modular design high power
28. oblock here you can connect standard 10 linear potentiometer wired as an adjustable resistor using a shielded cable Connect the shield to the connector When enabled in the settings menu this external potentiometer allows you to increase or decrease the master volume in 2 dB steps Enabling the external volume control automatically disables the front panel master volume control Serial port volume control will also be disabled When no external potentiometer is connected while the external volume control feature is enabled or the connecting cable is faulty or the value of the potentiometer is out of range the SGL ERROR LED s on the front panel will light up red and blink The display will show INVALID EXT VOL and the audio signal will remain muted until the connection has been repaired or the external volume control has been disabled in the settings menu 2 RS232 port on DBY connector Standard serial port connector tor programming external control and firmware updates using our firmware update program available online Port settings are fixed at 19200 baudrate 8 databits no parity no handshake LF line feed BS backspace and ECHO are not enabled but can be enabled using an RS232 command string More information in the RS232 commands chapter When the text returned via RS232 is garbled or no communication is possible adjust your communication parameters to match those of the unit If you are not familiar with RS2
29. ront panel controls using RS232 commands However the RS232 commands can be locked The procedure is described below see RS232LOCK INFO APART AUDIO COM l STORE possible commands GET SET Binary value is ON only Use this command to store all edited audio related parameters The store instruction looks like this SET STORE ON ECHO possible commands GET SET Binary values are ON OFF Use this command to enable or disable ECHO via RS232 LF possible commands GET SET Binary values are ON OFF Use this instruction to enable or disable Line Feed via RS232 BS possible commands GET SET Binary values are ON OFF Use this instruction to enable or disable Backspace via RS232 VALFB possible commands GET SET Binary values are ON OFF Use this instruction to enable or disable value feedback via RS232 USRSTF with this instruction you can set the user string font There are font types available Possible commands are SET GET possible values are 1 2 3 USRSTR Possible commands are SET GET With this command you can program the user string text that will be shown on the display In order to change the text SET USRSTR xxxxxxxx The maximum number of characters depends on the font type 1 2 3 and character width The maximum is 16 ASCII characters The text will be automatically stored in memory The user string is case sensitive INFO possible comm
30. supplied mains cable here The mains fuse is located inside the unit and can be accessed by removing the top cover of the unit For authorized personnel only When the tuse blows regularly check your system first remove any ground loops caused by faulty installation Always check for short circuits on your speaker lines audio signal lines and other connections INFO APART AUDIO COM Operation Front panel layout 1 Power switch power on the unit by flipping the switch to the on position In the OFF position ALL electrical circuits are disabled In the on position the unit be switched to standby using an RS232 instruction which will turn off the main power supply resulting in very low standby power consumption 2 Sub mute select switch during normal operation push once to mute the sub channel During parameter editing this button can be used to select the sub channel In editing mode you can also push multiple channel switches at once to edit the parameters simultaneously for all channels 3 Left channel mute select switch during normal operation push once to mute the left channel During parameter editing this button can be used to select the left channel Some parameters are linked for left and right channels 4 Right channel mute select switch during normal operation push once to mute the right channel During parameter editing this button can be used to select the
31. udness speaker delay Apart speaker configuration wizard Crossover Linkwitz Riley and Butterworth characteristics 12 to 48 dB oct or 6 dB oct first order filter Subsonic filter 48 dB oct between 10 and 80 Hz defeatable display guided menu structure 3 user security levels 22 WWW APART AUDIO COM Protection circuits overcurrent overtemperature DC offset AC and DC over and undervoltage Channel separation gt 80dB 1kHz Damping factor gt 400 all channels APC sytem internal compressor and clip limiter auto gain circuit External interface RS232 and external volume control 0 10V 1 mA closed loop circuit RS232 settings 19200 baudrate 8 databits no parity no handshake Max power consumption 1500W Mains operating voltage 230VAC 50 60Hz Dimensions 48 3 x 8 9 x 38 without rubber feet including rack ears Net weight 16 kg Gross weight 18 kg INFO APART AUDIO COM ANY SUGGESTION They are well appreciated and eventually rewarded Send your ideas or suggestions to suggestions apart audio com Company names product names and names of formats etc are the trademarks or registered trademarks of their respective owners 2011 APart Audio specifications subject to change without notice X CHAMP 3D is developed by Audioprof nv Industriepark Brechtsebaan 8 bus 1 BE 2900 Schoten BELGIUM 24 WWW APART AUDIO COM
32. ue out of range the unit will reply ERROR Value Invalid However this does not apply to output level related commands these cases the unit will set the value to the value closest to the absolute limit value For example you send SET MASTER 99 The unit will not reply with an error message instead the reply will look like this MASTER OFF The lowest possible Master level is 80 so 99 means that the master is lower than the lowest 80 value The master will be muted When a command that does not require value feedback has been executed the unit will reply Instruction Executed for example when the user definable display text or font type has been altered When the instruction is invalid the reply will be ERROR Invalid Instruction When the text returned via RS232 is garbled or no communication is possible adjust your communications parameters to match those of the unit Also make sure the front panel operation is unlocked When a communication error has occurred due to invalid communication parameters or unknown characters you will need to flush the RS232 buffer manually when the unit receives lt CR gt or enter the butter will be flushed Alternatively you might consider cycling the power just to be sure During the power on procedure the unit will identity itself via a text dump on the serial port When no text is shown on your serial communication device while the amplifier is perform
33. upper button The next screen appears Now use the up or down buttons to select the SUB LEFT or RIGHT channel and turn the rotary encoder to set the level You can also push the buttons underneath the LED VU meters to select the channels and it necessary you can push these buttons simultaneously to edit the level of all channels simultaneously Some parameters are linked for left and right channels The menu structure looks like this LEVELS MASTER MAX LEVELS SUB LEFT RIGHT MASTER 55 LEVELS MAX LEVELS SPEAKER WIZARD CROSS OVER EQUALIZER DELAY SETTINGS EXIT SAVE AND EXIT DAFA EXT VOL LOCK MODE WWW APART AUDIO COM LEVEES MAX LEVELS Here you can edit the levels of all channels relative to each other Default value is O dB It is recommended to use this parameter for level matching only Example you want to adjust the level of the subwoofer because it is 3 dB louder than the L R speakers in this case set the SUB parameter to 3 dB After adjusting push the upper button to go back to the main menu select SAVE AND EXIT and push the upper button again to save your selection Some parameters such as all audio related parameters are not automatically saved System settings such as display contrast are automatically saved Please note that decreasing the MAX level will decrease the master level While increasing the MAX level
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