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User Manual

DA 428

completely digital 4-channel amplifier

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Summary of Contents for DA 428

Page 1: ...User Manual DA 428 completely digital 4 channel amplifier ...

Page 2: ...n 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 Content...

Page 3: ...dates 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...

Page 4: ...ry encoder 2 SD card reader 10 link output DA 28 4 1 1 1 1 3 RGB LED 4 LCD display 5 navigation pad 9 LINE input 8 ground free switch 7 mains fuse 6 mains connector 11 module slot with RS NC Modul 12 speaker output 13 M8 treads for rack mounting ...

Page 5: ...ough 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 Here you can switch on off the DA 428 and navigate through the menu The navigation pad is to be used for accessing and changing param...

Page 6: ...letely 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 provided that the input signal is analogue The DA 428 includes 12 factory presets in the internal mem...

Page 7: ...Out A D Names Channel Names Out A D Preset Name normal 0 Polarity Out A D inverse 180 Name Memory Card Load all from card Save all to card Load preset from card Firmware Update DSP Update I C EEPROM Save preset to card Display Mode Output headroom Input levels Diagnostics LED Settings Signal LED Threshold Out A D User LED Threshold Out A D 60 10 dB 50 0 dB Power Management Mode Trigger Level Alway...

Page 8: ...n 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 0 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 dB octave or 24 dB...

Page 9: ...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 y...

Page 10: ...ono 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 can 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 wi...

Page 11: ... 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 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 ...

Page 12: ...e 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 wi...

Page 13: ...ctive circuits for single channels short circuit DC on output impedance undercut for the hole device under over voltage temperature overload Power consumption 2500 W Power requirements 90 250 Volt 50 60 Hz PowerCon In Operation modes stereo mono 4 channel mode free routable Control panel Navigation pad 4 rotary encoders 4 RGB LEDs LCD display SD card reader Connectors line in 4 x XLR sym link out ...

Page 14: ...nel it effects also when the mute function is not activated 12 2 switching 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 switc...

Page 15: ...de Content Item SELECT Page C Password D RSNC baud rate 2x 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 fol...

Page 16: ... 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 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 7...

Page 17: ...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 ...

Page 18: ...ease 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 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 plea...

Page 19: ...19 Warranty claims please learn from the warranty card included ...

Page 20: ...alleimers auf einem Produkt angebracht ist unterliegt dieses Produkt der europäischen Richtlinie 2002 96 EC 2 Alle Elektronik Altgeräte müssen getrennt vom Hausmüll über dafür staatlich vorgesehene Stellen entsorgt werden 3 Mit der ordnungsgemäßen Entsorgung des alten Gerätes vermeiden Sie Umweltschäden und eine Gefährdung der persönlichen Gesundheit 4 Weitere Informationen zur Entsorgung des alte...

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