User Manual - Pro Audio & Television
Contents
1. Processor DSP 24 bit 48 MHz clock Sampling 24 bit Diaital input amp link AES EBU S PDIF with format sample rate converter aa max 192 KHz eecormene internal 8 factory presets 4 user presets Y additional presets on ID Dimensions in mm WxHxD 483 x 88 x 375 8 5 kg D G l 09 12 The most important menu functions In this part of the user manual you will find a structured digest about the procedure for the necessary settings in the main menu and its functions If you pay attention to that a riskless use of the DA 428 is ensured 12 1 The mute function This function enables to mute separately every single channel of DA 428 with just one touch of a button Output headroom info Channel 1 Bass BEE a Bass muted Top L gt Ps Bass Top R For menu access gt EO 123 touch knob or panel long press tu unmute Pr 1 Preset 1 Pr 1 Preset 1 Press for 1 second the encoder A B C or D to mute the channel A repeated pressing of the particular encoder causes the deactivation of the mute function see display If the mute function was activated before switching off the DA 428 the mute function is after switching on the DA 428 again still activated If you are pressing an encoder for a short time during the mute function is activated you will see the state of the particular channel it effects also when the mute function is not activated 12 2 switching2. A d1 L left audio signal for the left 6 elements connect always two together Out D you have to rout to A B d1 L R sum Of channel A B With this signal you can drive the both upper elements of the center cluster After this please set the following link mode for link A B of the first DA 428 Link A A B d1 mono the left right analogue audio signal will be sum and digitalized link A analogue stereo in digital mono out for both lower elements of the center cluster of the second DA 428 on output D Link B source the right audio signal will be linked analogue in analogue out for the right 6 elements of the second DA 428 on output A output C 12 11 Specifications DA 428 Electronic Output power 4 8 Ohm 4 x 700 W 400 W Amplifier four fully digital amplifiers with high efficiency about 90 Frequency range 20 Hz 20 kHz hi unweighted per channel adjustable gain digital crossovers subsonic filter Features 6 fully parametric EQ s peak RMS limiter compressor phase 180 delay 0 1000 ms mute function matrix router for single channels short circuit DC on output impedance Protective circuits undercut for the hole device under over voltage temperature overload LCD display SD card reader line in 4 x XLR sym link out 4 x XLR sym Connectors max 4 x analogue or 2 x digital amp 2 x analogue speaker output 4 x Speakon NL 4 RSNC module
3. Note Keep in mind resp note down the entered password because if you want to unlock your DA 428 you have to enter the password again see lock function Should you have forgotten the password you have no possibility to re activate the DA 428 Please contact the K M E support Should the entered password had been cleared e g after a rental you have to assume a manipulation Follow now the instructions to activate the menu point Output headroom info A Preset 5X A Power Management Bass Bu B Memory Card B System Bass Ran C Display Mode C Software Top L g D LED Settings A A Top R ow For menu access gt I 4 touch knob or panel u Item SELECT Page gt u Item SELECT Page gt Pr 1 Preset 1 Back Confirm OK lt Back Confirm OK System 2x System System A Input Mod A Input Mod Eu Password B Link Mode Content Ks A B Link Mode Content FAnn f N DEE Tia dd eee el Er Eee cada Pate lt Item SELECT Page gt _ Item SELECT Page gt Use encoders to set Back Confirm OK lt Back Confirm OK lt Back Save OK Press the marked arrow keys of the navigation pad one after another like shown in the scheme to open the sub menu password Now you can enter your password with the help by encoder A and confirm with OK You can leave the menu by pressing the left arrow key 12 4 The lock function To lock your DA 428 with or without password please do the following instructions
4. analogue see page 13 After this please choose the following routing Out C A d1 L left top unit Out D B d2 L right top unit Out A A B d1 L R subwoofer mono signal sum A B 6dB Out B A B d1 L R subwoofer mono signal sum A B 6dB Example 2 You will drive a passively channelled PA system with two separately driven monitor systems passive with your DA 428 The input signal fort the PA is digital and the monitor systems are driven with two separately analogue input signals Please plug in the digital input signal to input A of DA 428 and the monitor signals to input C D Adjust the input mode for channel A to digital see page 13 After this please choose the following routing Out A A d1 L left channel Out B C d1 R right channel Out C C always monitor system 1 Out D D always monitor system 2 11 10 Link mode content of link channels Here you can appoint which audio signal is on the link A B adjustable for each channel If you choose the menu item source the input signal is also on the link socket available that means input signal output signal independent if there is an analogue or digital input signal If you do not choose the menu item source you will get always a digital link signal on the link socket all link possibilities for channel A B are listed below The link of channel C D can always reproduce the input
5. 4 rotary encoders The sophisticated user interface is completed by a graphic LCD display and 4 RGB LED s informing about relevant operation parameters and state of the single channels Factory and user presets may of cause be stored inside the unit an SD card reader is implemented and can be used to easily transfer preset and system information to other units An preset editor software and various firmware add ons are available as well On the inputs side are 4 analogue connections as well as 2 digital ports accepting AES EBU and SPDIF formats of 16 to 24 bit and 32 to 192 kHz sampling frequency 4 link sockets either carrying the signal applied to the inputs can be routed as processed digital outputs carrying AES EBU of 24 bit 48 kHz The designers also implemented a module slot for future updates i e connections to audio control networks standard fitted with module RSNC equipped with a RS232 connector and a normally closed contact feature Global remote control is guaranteed using future firmware upgrade modules but even the standard version contains simple remote features Another important feature is the PFC controlled audio optimised wide range switched mode power supply of the last generation The outside power connection was realised using a self locking Neutrik PowerCon connector 4 Neutrik Speakon sockets two are wired bi amp ensure the connection to the speaker systems An extensive set of protective circuits and d
6. Set all required parameters also the encoders volume control and press like shown in the graphics the OK button for 2 seconds and your system is locked now your unit is ready for a rental for example After pressing the OK button you have to disconnect the mains plug to switch off the unit When you connect the mains plug again the lockfunction is re activated That means you can not change any settings while the lockfunction is activated To deactivate the lock function you have to press the OK button again for 2 seconds and if entered before enter your password by the help of encoder A and confirm with OK Output headroom info Output headroom info Bass n Bass Bass Bass Top L Top L Top R Top R For menu access gt o Unit locked touch knob or panel Unlock long press OK Pr 1 Preset 1 Pr 1 Preset 1 15 13 System operation and extension This overview shows you examples of using combination and extension of passive PA components within using DA 428 as heart and control center to adapt your reinforcement optimally on your audience Monitor mode four independently and free routable channel for monitoring 4x passive monitors min 700 W 4 Ohm or 8x passive monitors min 350 W 8 Ohm System mode example 1 four independently and free routable channel e g full range or top units 4x passive top units
7. connection panel ce ceccec eee eeeeceeseeeeeeeeeeeeees 4 5 6 Powering up down 6 1 choosing preset play 6 6 2 selecting presets ccccecseeeeees 6 7 Navigation structure on the hardware unit cccccceeseeeeeeeeeees T OO OC FU Ol aa ee ee ee 8 10 9 Routing of input Channels cccccceccecceeeceeceeeceeecuecaseceesaeesaees 11 10 Link mode content of link channels 02 0220220 ss 12 11 Specifications DA 428 0000 0a 13 12 The most important menu functions 12 1 mute function 14 12 2 switching input between analogue or digital 14 12 3 entering password 15 12 4 lock function 15 13 System operation and extension c cece cceecc secs eeceeeeeeeeeeeeeeaees 16 18 14 EC declaration of conformity ccc cecceecc eee eeeeeeeeeeeeeeeeeeeeseeees 19 15 Disposal of your old appliance ccc ccc ecceecaeeeeeceeeeeeeeeeeeeeeenees 20 2 3 The completely digital 4 channel DSP amplifier The DA 428 is a completely digital 4 channel amplifier with 700 W 4 ohm output power on each channel This compact light weight 19 2U device is equipped with comprehensive DSP features like matrix router 6 fully parametric equalizers two crossover networks delay and dynamic processor per channel All parameters as well as user navigation can be managed using a simple 5 key navigation pad together with
8. mounting 6 Powering up down To switch on off your DA 428 please follow the instructions 1 Apply power supply connection 90 250 Volt 50 60 Hz on DA 428 if the unit is switched to power mode Always On it is switched on now lock function can be active 2 Press for a very short time the OK button to switch on the DA 428 3 To switch off the DA 428 press for 1 second the left arrow key and than the OK button If the unit is locked please disconnect the power supply connection to switch off the DA 428 Note Switch on the DA 428 when all connected components are switched on and muted previously to avoid an unwanted sound reproduction Because the DA 428 can be in lock function for rental purposes that means the unit may not react on changes on the control panel depending on adjustment before and this can cause an immediate reproduction when switching it on Therefore it is necessary to mute all connected devices previously During power on for the very first time Preset 1 is loaded More information about the initial state you can find on page 3 6 1 Choose your preset play To adapt your completely digital 4 channel amplifier to your reinforcement you have to choose and load the correct preset For chosen applications the DA 428 includes some pre set presets If you would choose these presets please take care of the internal routing of the signal inputs and speaker outputs of the DA 428 prov
9. signal of these channels always analogue that means input signal output signal Digital link signal Display shows A and C digital stereo out of A C A C d1 B and D digital stereo out of B D B D d2 A B digital mono out sum of A B or d1 mono A B d1 mono C D digital mono out sum of C D or d2 mono C D d2 mono C D T digital stereo out of C D C D always reg digital mono out sum of EOD A A B C D Example 1 You will drive an actively or a passively channelled PA system with your DA 428 the stereo input signal is analogue and the subwoofers are driven mono Please plug in the left input signal to input A and the right input signal to input B of DA 428 On input C D you will connect the analogue stereo signal of group 1 2 from the mixing desk e g for a digital recorder After adjust the input mode see page 11 please set the following link mode for link A link A C D always works as AD converter analogue stereo in digital stereo out Example 2 You will drive 12 passively channelled PANO Line Array elements with two DA 428 the stereo input signal is analogue Additionally you need a center cluster because your audience area is very width This center cluster consists also of 4 PANO Line Array elements Please plug in the left input signal to input A and the right input signal to input B of the first DA 428 Now you have to route output A output C of the first DA 428 to
10. B octave or 24 dB octave These digital filters crossover limit the frequency range The high pass filter can not be deactivated When you need a full range audio signal on the output you have to set the frequency to 35 Hz and choose a type of the high pass filter Dynamics adjust dynamics per channel Threshold Attack Release Post Gain This dynamic processor is working when the audio signal exceeds the entered threshold value The two time constants attack and release time draw the speed of the gain regulation mechanism and are dependent to the program material With the post gain you can adjust your audio signal level Routing routing possibilities for each channel A d1 L B d2 L C d1 R D d2 R C always D always A B d1 L R C D d2 L R C D always B C D A B C D d1 d2 The routing of the DA 428 offers comprehensive possibilities for controlling the audio signal You will find detailed information in the table on page 11 Level Link prospectively available Mute Link prospectively available Channel Names enter a name for each channel max 9 digits Preset Name enter preset name max 12 digits Memory Card Load all from card Save allto card Load Preset from card Save preset to card Here you can Display Mode Output headroom headroom display Input levels input level display Diagnostics operation display You can chose between three layouts of the LCD display The first one shows the headroom of a
11. User Manual DA 428 completely digital 4 channel amplifier 1 Introduction Thank you for choosing a K M E product This completely digital 4 channel amplifier with DSP functionality is based on a similar technology platform like the active units of the VERSIO series The exceptional and ground breaking performance of this digital amplifier allows an optimization within for all passively driven PA systems It provides a loudspeaker specific configuration and functionality With this compact and sophisticated amplifier you will be able to master your reinforcement situations in a very flexible manner main PA full range mode monitoring fill system delay line In this User Manual you will find some hints and warning notes for your new product with which a save use of the DA 428 is allowed Please read this instructions before you switch on the unit for the first time to get in touch with particular features of your new product If you have questions about this product please contact the K M E support Within our extensive production processes we only use exclusive materials and components of best quality Share with us the enthusiasm for good sound The K M E team wishes you fun and success with your new completely digital DSP amplifier 2 Contents 1 Introduction 2 COMENS carea a 2 3 The completely digital 4 channel DSP amplifier 3 4 Ine aelivery StatUS reset ASAAN ANNE 3 5 The control and
12. and human health 4 For more detailed information about disposal of your old appliance please contact your city office waste disposal service or shop where you purchased the product WEEE Reg Nr DE 84296747 Klingenthaler Musikelektronik GmbH Auerbacher Strake 268 08248 Klingenthal Germany phone 49 0 37467 558 0 fax 49 0 37467 558 33 service kme sound com www kme sound com Technical State December 2009 The content corresponds to the state at printing Subject to technical alterations Misprints and errors expected 20
13. d nominal load and impedance of the passive loudspeaker s you connect For more information please contact your K M E dealer or the K M E support Multi channel mode Bass management system for smaller surround systems 5 1 extendable e g for cinemas and multi media installations Attention Please mind nominal load and impedance of the passive loudspeaker s you connect For more information please contact your K M E dealer or the K M E support 18 This is to certify Article Product 1 220 002 DA 428 EC declaration of conformity fully digital DSP functionality Group multi channel amplifier Complies with the provisions of the Directive of the Council of the European Communities on the approximation of laws of the Member States relating to electromagnetic compatibility EMC Directive 89 336 EEC This declaration of conformity of the European Communities is the result of an examination carried out by the Quality Assurance Department of Klingenthaler Musikelektronik GmbH in accordance with European Standards VDE 839 Teil 6 1 08 2002 DIN EN 61000 6 1 VDE 839 Teil 6 3 06 2005 DIN EN 61000 6 3 VDE 838 Teil 2 12 2001 DIN EN 61000 3 2 VDE 838 Teil 3 05 2002 DIN EN 61000 3 3 VDE 860 Stand 01 2003 DIN EN 60065 VDE 875 Teil 1 06 1997 DIN EN 55103 1 VDE 875 Teil 2 06 1997 DIN EN 55103 2 This declaration is given by Kl
14. e encoder again for a short time After unmuting the volume level will be set on the level before muted the channel The encoders are also used for choosing and setting of menu items resp values too 2 SD card reader Is the interface to save and load presets from the card Firmware updates are also possible with this SD card reader You can also transfer user presets by SD card to copy it between in a number of devices The programmed format is FAT16 which is used on computers to read and write it 3 RGB LED Signalized different parameters per channel LED off there is no input signal or the device is not on LED green there is an input signal which is higher than the threshold LED blue the adjusted user threshold value is exceeded LED yellow max input level the limiter is working LED red there is a malfunction you have to power cycle the DA 428 LED cyan channel is muted LED white encoder can be used for entering of adjustable parameters LED magenta signalized external access is not used in this version 4 LCD display Is used as operation mode display of the DA 428 The arrows in the LCD display show the directions to navigate through the submenus see navigation structure All software parameters must be set on the unit itself Press the OK button to select a parameter To change a value in the submenus please use the four arrow keys or the encoders if you are asked by the unit 5 navigation pad H
15. equency 35 8000 Hz LP Off 12 dB 24 dB Dynamics Out A D Threshold 24 00 dB Attack 0 127 ms Release 0 1270 ms Post Gain 99 0 dB Polarity Out A D E normal 7 a inverse j Routing Out A D gt A d1 L B d2 L C d1 R D d2 R C always D always A B d1 L R C D d2 L R C D always B C D A B C D d1 d2 Level Link Out A D Mute Link Out A D Channel Names Out A D Names Preset Name Name Memory Card Load all from card Save all to card Load preset from card Save preset to card Input levels Display Mode E Output headroom Diagnostics LED Settings Z Signal LED Threshold Out A D gt 60 10 dB User LED Threshold Out A D gt 50 0 dB Trigger Level 99 0 dB Power Management E Mode gt Always On Last State Audio Trigger Trigger Time 7 120 min System Input Mode InA B In A analog In A digital In B analog In B digital Link Mode Content Link A B Source A C d1 B D d2 A B dimono C D d2mono C Dalways B C D A B C D Password Password RSNC baud rate gt 1200 2400 4800 9600 19200 38400 57600 115200 kbit s Brightness 7 127 Contrast 7 63 Software E Firmware Version Firmware Update DSP Update 1C EEPROM 8 Operation All these software parameters must be set directly on the hardware device in the first instance The na
16. ere you can switch on off the DA 428 and navigate through the menu The navigation pad is to be used for accessing and changing parameters on the display of the hardware unit Press the OK button if you are asked by the software see navigation structure Power 6 mains connector PowerCon in blue Attention use mains voltage of 90 250 V AC 50 60 Hz 7 mains fuse Replace fuse only by type 10 AT slow blowing fuse 5x20 mm 8 ground free switch Disconnects the ground of the input channels from chassis to avoid ground loops Inputs Outputs 9 LINE input 4x XLR sym inputs A B can be switched separately between analogue or digital see navigation structure 10 Link output 4x XLR sym outputs A B can be switched between analogue or digital see navigation structure The link output of channel A B can be routed as processed digital outputs carrying AES EBU of 24 bit 48 kHz All link sockets are only active when the DA 428 is powered on 11 module slot with RS NC module Equipped with a RS232 connector and a normally closed contact feature 12 speaker output Speakon NL 4 4x 700 W 4 ohms min impedance output power depends on preset Attention Please mind nominal load and impedance of the passive loudspeaker s you connect The speaker outputs A B are interconnected with the outputs C D for bi amp mode 1 1 and 2 2 13 M8 treads for rack mounting 4x M8 treads for 19 rack
17. ided that the input signal is analogue The DA 428 includes 12 factory presets in the internal memory which can be free programmed and saved on the actually preset You can change and save the name of the preset too You can save and load factory presets also on SD card How it can be made and which changes in the detailed submenu are possible you will find it on page 8 10 in this manual 6 2 Selecting presets On the following example you choose preset 3 please follow the instructions Output headroom info IX Output headroom info Bass o Bass nu Bass X N Bass RED Top L eae Top L o Top R Top R LY J X z gt T PN A C J For menu access gt AI For menu access Wd touch knob or panel 7 touch knob or panel Pr 1 Preset 1 Pr 3 Preset 3 After power on the DA 428 for the very first time the left graphic appears on the LCD display Now preset 1 is loaded For example to choose and load preset 3 you have to press the marked arrow key twice and confirm with the OK button If you control your PA system with an analogue audio signal you can start now 7 Navigation structure on the hardware unit Main Menu Preset Delay Out A D 0 400 m Equalizer Out A D EQ 1 6 Frequency 35 12000 Hz Q 00 7 12 5 Gain 12 12 dB Shape PEQ Shelf EQ 2 E Frequency 35 12000 Hz Be 00 7 12 5 Gain 12 12 dB Crossover Out A D HP Frequency 35 8000 Hz HP Subsonic 12 dB 24 dB LP Fr
18. igital monitoring components is included rounding off the professional features of this equipment The DA 428 is usable for stage monitor operation to system operation of passive PA components or realisation of professional multi channel systems within sound installations 4 The delivery status The scope of delivery includes 1x DA 428 1x PowerCon mains cable and user manual When you power up the DA 24 for the very first time the following default parameters in the main menu are pre set Preset 1 is loaded Sig LED threshold is adjusted to 50 dB User LED threshold is adjusted to 0 dB 0 dB deactivated Output levels are shown on the LCD display input A and B are switched to analogue a password is not entered This User Manual corresponds to the software version V1 01 r35 It is obvious in the menu item Diagnostics 5 The control and connection panel 4 LCD display 2 SD card reader 5 navigation pad 1 rotary encoder 8 ground free 10 link output 11 module slot with switch 9 LINE input RS NC Modul 7 mains fuse 12 speaker output 6 mains connector 13 M8 treads for rack mounting Operation 1 rotary encoder You can adjust the volume level of each channel independently If there is no menu item activated a short pressing of an encoder effected the status display of this channel By pressing the encoder a bit longer you are muting this channel To unmute the channel press th
19. ingenthaler Musikelektronik GmbH Auerbacher StraBe 268 D 08248 Klingenthal hho aging Director Klingenthal April 2009 Mar Warranty claims please learn from the warranty card included 19 Klingenthaler Musikelektronik GmbH Auerbacher Stra e 268 08248 Klingenthal Germany phone 49 0 37467 558 0 www kme sound com Deutsch Entsorgung von Altger ten 1 Wenn dieses Symbol eines durchgestrichenen Abfalleimers auf einem Produkt angebracht ist unterliegt dieses Produkt der europ ischen Richtlinie 2002 96 EC 2 Alle Elektronik Altgerate m ssen getrennt vom Hausm ll uber daf r staatlich vorgesehene Stellen entsorgt werden 3 Mit der ordnungsgem en Entsorgung des alten Ger tes vermeiden Sie Umweltsch den und eine Gef hrdung der pers nlichen Gesundheit 4 Weitere Informationen zur Entsorgung des alten Ger tes erhalten Sie bei der Stadtverwaltung beim Entsorgungsamt oder in dem Gesch ft wo Sie das English Disposal of your old appliance 1 When this crossed out wheeled bin symbol is attached to a product it means the product is covered by the European Directive 2002 96 EC 2 All electrical and electronic products should be disposed of a separately from the municipal waste stream via designated collection facilities appointed by the government of the local authorities 3 The correct disposal of your old appliance will help prevent potential negative consequences for the environment
20. input A and or B between analog or digital The DA 428 offers the opportunity to plug in four analogue audio signals or two analogue and two digital audio signals If you want to use a digital audio signal you have to switch the input A or and input B to digital see page 10 In the delivery status input A and input B are switched to analogue That means the DA 428 can be driven by four analogue input signals Output headroom info A Preset 5x A Power Management Bass nu B Memory Card p B System o Bass KAS C Display Mode KA C Software Ko Top L SG D LED Settings lt ax Top R oS lt BKD u 5 KFS a gt ID For menu access gt touch knob or panel Item SELECT Page gt o Item SELECT Page gt Pr 1 Preset 1 lt Back Confirm OK lt Back Confirm OK System System A Input Mode B Link Mode Content C Password D RSNC baud rate Input Mode In A analog In B analog Item SELECT Page gt Item SELECT Page gt lt Back Confirm OK Back Confirm OK Press the marked arrow keys of the navigation pad one after another like shown in the scheme to switch the input to analogue or digital by the help of the encoder After the correct selection of the input press the OK button and leave the menu with the left arrow key 14 12 3 Entering password To lock the DA 428 with a password max 8 digits you have to enter it first This password can be changed every time
21. ll 4 amplifier modules The second one gives an overview about input level with O dB level The third one informs you about the temperature of the amplifier module and the PSU PowerSupplyUnit as well as the actually mains voltage of DA 428 LED Settings Signal LED Threshold adjustable per channel User LED Threshold adjustable per channel Here you can set the threshold value where the LED starts to light green when the set value is reached by the audio signal It is only an optically notice Here you can set the threshold value where the LED starts to light blue when the set value is reached by the audio signal This function allows you to set an optical limit for the volume level for your audience e g 6 dB you know your pre set value is reached Power Management Mode Always On after apply power supply connection the DA 428 is switched on Last State DA 428 starts in the last state of operating Audio Trigger depending on the input level the DA 428 switched automatically on or off Trigger Level enter threshold value for Trigger Time valid for all channels Trigger Time adjust remaining On time In this menu item you can pre set the operating status of the DA 428 If you choose Always On the DA 428 is always on That means after apply power supply connection the unit is automatically on and ready to play the lock function can be active If you choose Last State mode the DA 428 will always start i
22. mes of the menu points refer to the user navigation on the device Die Menupunkte e Preset Delay adjust delay from 0 400m for each channel in 1 cm steps Output Phase adjust output phase for each channel choose between 0 or 1809 Equalizer 1 6 adjust equalizer per channel Frequency Q bandwidth Gain Shape Parametric Shelf fully parametrical EQ or Shelf function With this digital filter you can affect the frequency range by making adjustments of filter frequency center frequency the gain boost resp cut and the Q factor bandwidth If you adjust the sensitivity gain to O dB you deactivate this filter If you choose the type Low Shelf or High Shelf the bandwidth is not activated you can enter a value for the Q factor but it is ignored You can use the equalizer 1 as a fully parametrical equalizer or as Low Shelf and the equalizer 6 also as fully parametrical equalizer or as High Shelf Equalizer 2 5 adjust equalizer per channel Frequency Q bandwidth Gain With this digital filter you can affect the frequency range by making adjustments of filter frequency center frequency the gain boost resp cut and the Q factor bandwidth If you adjust the sensitivity gain to O dB you deactivate this filter Crossover high pass low pass filter crossover function per channel HP Frequency Type subsonic filter 12 dB Q 1 2 or 12 dB octave or 24 dB octave LP Frequency Type off or 12 d
23. min 700 W 4 Ohm or 8x passive top units min 350 W 8 Ohm example 2 four independently and free routable channel e g bass array 4x passive subwoofers min 700 W 4 Ohm or 8x passive subwoofers min 350 W 8 Ohm 16 example 3 actively channelled PA system 2x or 4x top units min 350 W 8 Ohm 2x subwoofers min 700 W 4 Ohm or 4x subwoofers min 400 W 8 Ohm example 4 free configurable passively and actively channelled PA systems with bass extension left drawing or top extension mid drawing or monitor extension lower drawing Attention Please mind nominal load and impedance of the passive loudspeaker s you connect For more information please contact your K M E dealer or the K M E support 17 example 5 directional dispersion of the subwoofers free configurable actively channelled PA systems with directional cardioid dispersion in the low frequency range lower drawing Attention Please min
24. n enter a max 8 digit password If you have entered a password and activate the lock function you must enter the password again to unlock the unit You will find detailed information on page 14 RSNC baud rate prospectively available Brightness adjust brightness of the LCD graphic display Contrast adjust contrast of the LCD graphic display e Software Firmware Version Firmware Update DSP Update iC EEPROM 10 9 Routing of input channels Here you can set the routing for each input channel This process depends on the input signal analogue or digital That means if you have chosen the input mode digital corresponds only for channel A B because this input channels can operate with a digital audio signal too see page 13 the routing possibilities will be automatically switched to digital see table In the following table you will find all adjustable configurations per channel which can be chosen msi iy stows analogue or igs eB or eo 7 7 EEE Calways DO C aways always analogue Camays D always obeys anavou Damas S er e o eo or en omn o tee O B c D always analogue fecon Example 1 You will drive an actively channelled PA system with your DA 428 the stereo input signal is analogue and the subwoofers are driven mono Please plug in the left input signal to input A and the right input signal to input B of DA 428 Adjust the input mode for channel A and B to
25. n the last state of operating after power cycle the unit To reduce the power consumption e g in installations you can choose the Audio Trigger mode In this mode you can set a threshold value and a time value where the system automatically switched off when the threshold is not exceeded with an audio signal After the pre set time the unit is switched off If the pre set threshold value is exceeded during the unit is still on the time value counts again that means this function is a posttrigger function You can switch on the unit again by pressing the OK button or playing an audio signal which has a higher input level as the pre set threshold value Trigger source for the pre set time value is every channel e System Input Mode only for channel A B InA analog InA digital In Banalog InB digital Here you can switch the input A resp the input B to analogue or digital By doing this you have the possibility to apply an analogue and or digital audio signal on input A B On input C D you can only operate with an analogue audio signal You will find more information on page 13 Link Mode Content only for link A B Source A C d1 B D d2 A B d1 mono C D d2 mono C D always B C D A B C D The link mode of the DA 428 offers comprehensive possibilities for controlling the audio signal to analogue or digital systems You will find detailed information in the table on page 12 Password In this menu item you ca
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