Klark Teknik DN9848E Operator's Manual
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Klark Teknik DN9848E Operator's Manual

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DN9848E
System Controller
Operator Manual
Klark Teknik,
Klark Teknik Building,
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
Tel: +44 (0) 1562 741515
Fax: +44 (0) 1562 745371
Email: info@uk.telex.com
Website: www.klarkteknik.com
DN9848E System Controller Operator Manual
DOC02-DN9848E Issue B - August 2006
© Telex Communications (UK) Limited.
In line with the company's policy of continual improvement, specifications and function may be
subject to change without notice. This Operator Manual was correct at the time of writing. E&OE.

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  • Page 1 Email: info@uk.telex.com Website: www.klarkteknik.com DN9848E System Controller Operator Manual DOC02-DN9848E Issue B - August 2006 © Telex Communications (UK) Limited. In line with the company’s policy of continual improvement, specifications and function may be subject to change without notice. This Operator Manual was correct at the time of writing. E&OE.

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS 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 sufficient 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 important operating and maintenance (servicing) instructions in the literature accompanying the product.

  • Page 5: Declaration Of Conformity

    Tel: +44 1562 741515 Fax: +44 1562 745371 www.midasconsoles.com www.klarkteknik.com DECLARATION OF CONFORMITY Telex Communications (UK) Limited Klark Teknik Building, Walter Nash Road, Kidderminster, Worcestershire, DY11 7HJ. Declare that a sample of the following product:- Product Type Number Product Description...

  • Page 7: Table Of Contents

    Please take time to complete and return the Klark Teknik three-year warranty registration card and, to obtain maximum performance with minimum effort, refer to this operator’s manual.
  • Page 8 HELIX DN9848E unit interconnections ................. 32 9.2.1 Connecting HELIX DN9848E units in a daisy chain ........... 33 9.2.2 Connecting HELIX DN9848E units to an Ethernet switch or hub ......... 33 9.3. Ethernet Connection ....................34 9.3.1 Ethernet connection – standard ................34 9.3.2...

  • Page 9: Attention

    ATTENTION! Please ensure that you read and follow the IMPORTANT SAFETY INSTRUCTIONS at the front of this manual and the SAFETY WARNINGS and INSTALLATION CONSIDERATIONS given below. Safety Warning To prevent shock or fire hazard, do not expose the unit to rain or moisture. To avoid electrical shock do not remove covers.

  • Page 11: Introducing The Idn9848E

    Klark Teknik has a policy of continuous development and may produce updates to the DN9848E host code. These can be downloaded to the unit via the front panel PC Port. To keep up with latest...

  • Page 12: Front Panel

    Controls, Connectors, Indicators 2. F RONT ANEL Input channels A-D MENU ACCESS Press to access and step through the menu pages for the Buttons A-D respective input. The available pages depend on the current security setting. The button is lit when active. Signal Level 9-segment signal meters for monitoring signal level Meters A - D...

  • Page 13: Rear Panel

    Controls, Connectors, Indicators 3. R ANEL IEC fused mains For mains power connection. Accepts input voltages from inlet socket 100-240V AC 50/60Hz. Ethernet 2-port Ethernet switch for remote control using Cat-5 cabling. Outputs 1-8 Electronically balanced XLR audio output plugs Pinouts: Pin 1 - Screen Pin 2 - Hot...

  • Page 14: Rogramming Ettings

    4. P ROGRAMMING ETTINGS 4.1. The DN9848E Programming Panel All the parameters for input and output signal processing and routing are defined via function-specific menu pages that are displayed and edited at the programming panel shown below. As described in the illustration, each menu page uses a standard layout that relates the displayed parameters to the three DATA ENTRY control knobs, which are used to adjust the parameter values.

  • Page 15: Navigating The Dn9848E Menus

    DN9848E Menu System 4.2. Navigating the DN9848E Menus The DN9848E menu system is divided logically into Input, Output and Set Up menus, plus two function-specific menus for quick access to the Store and Recall commands. A menu map is provided at the end of this section for reference purposes.
  • Page 16 DN9848E Menu Map...

  • Page 17: Input Channels

    HANNELS 5.1. Brief Technical Overview Referring to the illustration below, each input channel of the DN9848E processes the audio signal through delay and gain stages, followed by 12 bands of parametric equalisation, and a full-band compressor. All key stages are monitored for signal clipping which, if detected, illuminates the top red segment at the top of the input signal meter;...

  • Page 18: Gain And Delay

    OFF position just ‘below’ –40dB. Setting the gain to OFF will mute the input signal. 5.2.4 Parametric Equalisation (Pages 2 to 13) The DN9848E provides 12 parametric equalisation stages on each input channel, for equalising the input signal in respect of room/venue characteristics. Each stage can be used across the full range from 20Hz to 20kHz and is set independently via its own menu page.

  • Page 19: Compression

    Input Channels 5.2.5 Compression (Page 14) Each input has an independent full-range compressor to improve the dynamics of the incoming signal levels. The compressors are variable ratio and can be set to a hard knee characteristic for a sharp gain reduction response at the compression threshold, or soft knee for a more ‘musical’...

  • Page 20: Output Channels

    Output Channels 6. O UTPUT HANNELS 6.1. Brief Technical Overview The output channels are slightly more complex than the input channels in that they are responsible for the signal routing as well as output signal processing. At the input of each output there is a matrix mixer (see following diagram) that can source each output from a mix of the four input channels (A to D).

  • Page 21: Setting Output Parameters

    Each output of the DN9848E can be sourced from a mix of the input channels. The level of the source inputs can be set to between 0.0dB and –40.0dB or switched off.

  • Page 22: Signal Invert, Delay And Output Level

    6.2.4 Phase Adjustment (Pages 3 and 4) To meet the demands of a wide range of situations, the Klark Teknik DN9848E provides two all-pass filters with complementary control parameters for fine-tuning the phase response on each output, for example, for alignment at crossover. The first filter is presented as a ‘phase shifter’ for which you can set a specific phase shift at a reference frequency , for example, the HPF or LPF (typically the crossover point).

  • Page 23: High Pass And Low Pass Filters (Pages 5 And 6)

    (slope) and the left control knob to select the frequency. 6.2.5 High Pass and Low Pass Filters (Pages 5 and 6) The DN9848E provides the following high and low pass filter (HPF and LPF) options for crossover purposes: Butterworth: 6, 12, 18, 24, 36 and 48dB / Octave...

  • Page 24: Parametric Equalisation (Pages 7 To 12)

    6.2.6 Parametric Equalisation (Pages 7 to 12) The DN9848E provides six parametric equalisation Any PEQ can be used as the reference frequency for the Phase Shifter (see stages on each output channel, for equalising the Section 6.2.4)

  • Page 25: Compression

    Notably, the DN9848E uses a special ‘look-ahead’ limiter so that it can anticipate transient overshoots and act ‘immediately’ (see Section 10 “Application Notes” for further details). The limiter threshold can be adjusted to accommodate the varying requirements of commercial equipment.

  • Page 26: Monitoring The Output Signal

    Output Channels 6.3. Monitoring the Output Signal Each of the eight outputs has an 11-segment signal meter for monitoring internal signal clipping and output levels that may cause damage to the loudspeaker equipment. The top CLIP segment monitors the internal signal clipping. It operates independently of the rest of the meter, illuminating if signal clipping is detected at any stage in the processing circuits regardless of whether the level of the final processed signal is above or below the compressor and/or limiter thresholds.

  • Page 27: Output Gain And Mute - Front Panel Control

    Output Channels 6.4. Output Gain and Mute - Front Panel Control Each output is equipped with a dual-action rotary/push-switch control for adjusting or muting the output level. Note that zero mark on the control refers to the baseline output level set in the Output menu (see Section 6.2.3) and hence the rotary control provides fine-tuning relative to this level.

  • Page 28: Channel Copying

    Output Channels 6.5. Channel Copying Parameters from a source channel may be copied to one or more destination channels using the channel copy function. Note that parameters may only be copied between channels of a similar type, that is, you cannot copy input channels to output channels or vice versa. To copy a channel’s parameters Press and hold the blue MENU ACCESS button on the source input (A - D) or...

  • Page 29: Dn9848E Set U P Options

    PC, or the gang mode for working with ganged input or output channels. Comms channels 1 to 32 are available enabling a slave network of up to 16 DN9848E units to be remotely controlled from a PC using the Elgar Library Manager and HELIX DN9848E RCS add-in software.
  • Page 30 The front panel controls, except the HOME (SETUP) button, are locked out to facilitate remote operation. The display indicates that the unit is under remote control. For further details on DN9848E remote control set ups, see Section 9. To switch gang mode on Press and hold the HOME (SET UP) button to re-open the Comms page.

  • Page 31: Gang Mode Setup

    Security and Other Set Up Options 7.3. Gang Mode Setup (Page 2) This option is used to link multiple input channels or output channels together so that a change on one channel will be made to all channels in the gang. When a gang is created, the settings from the source channel are copied to the destination channel(s) so that all ganged channels inherit the same parameter values.

  • Page 32: Security Settings (Pages 3 And 4)

    Security and Other Set Up Options To remove a channel(s) from a gang This procedure is the same for input channels and output channels. In the following example, inputs A, C and D are initially ganged. Step through the Set Up menu to the Gang Mode Setup menu page.

  • Page 33: System Protect

    If correct, the display will report ‘UNLOCKED’. Press HOME to exit the page and return to normal operation. If you have entered the wrong password, the DN9848E will flag it as incorrect and return to the Panel Unlock page for a further attempt.

  • Page 34: Analogue/Digital Input Select

    Turn the right control knob clockwise to apply the password. If you have entered the wrong password, the DN9848E will flag it as incorrect and return to the Panel Unlock page for a further attempt.

  • Page 35: Lcd And Led Lighting

    The default setting is 4, with a range of 0-15. 7.7. Naming (Pages 7 and 8) To help with system identification, the DN9848E unit and the current working memory may each be given a name up to 24 characters long.

  • Page 36: Backup System

    For Metric or Imperial distance measurement, specify the ambient temperature of the venue using the centre control knob. The DN9848E will use this to adjust the speed of sound (which varies with temperature) in the delay calculation so that accurate delays are applied to the channels.

  • Page 37: Power Up Options

    7.11. Ethernet Settings (Pages 12 and 13) When controlling the DN9848E unit remotely via Ethernet, the unit requires an individual IP Address and Subnet Mask to be set. For more information on DN9848E remote control set ups, see Section 9. 7.11.1 Ethernet IP Address (Page 12) The IP Address is entered manually on each unit in the network using the DN9848E’s front panel...

  • Page 38: Ethernet Subnet Mask Setup

    ‘hidden’ from another. For example, in an installation with one network but multiple auditoriums. For more information on configuring your network, please see the HELIX DN9848E RCS User Guide. For more information on remote control setups, see Section 9.

  • Page 39: Storing And Recalling Settings

    Press STORE to confirm the action and return to the DN9848E Home page. The DN9848E automatically checks the memory settings and displays a warning if any errors are found. Where possible, it will also attempt to automatically correct the error.

  • Page 40: Dn9848E Remote Control Setup

    Manager and HELIX DN9848E RCS User Guides. 9.2. HELIX DN9848E unit interconnections The HELIX DN9848E units in your system can be connected together in a daisy chain, or each one can be connected to an Ethernet switch or hub. Note When connecting the Ethernet cable to the rear panel of a HELIX DN9848E unit, either of the Ethernet sockets can be used.

  • Page 41: Connecting Helix Dn9848E Units In A Daisy Chain

    Remote Control Setup 9.2.1 Connecting HELIX DN9848E units in a daisy chain The diagram below shows a typical example of the HELIX DN9848E units connected in a daisy chain configuration. 9.2.2 Connecting HELIX DN9848E units to an Ethernet switch or hub The diagram below shows each HELIX DN9848E unit directly connected to an Ethernet switch or hub, which is then connected top a laptop/PC.

  • Page 42: Ethernet Connection

    Alternatively, you can set up a system involving multiple units. One end of the Ethernet cable is connected to the network socket of the laptop/PC. The other end is either connected to an Ethernet socket on one of the HELIX DN9848E units (daisy chain), or an Ethernet switch or hub, depending on system configuration.

  • Page 43: Configuring The Dn9848E For Network Communication

    There is an option to control your system remotely from a laptop/ PC via the RS-232 connection (the “PC PORT”) on the front panel of the first HELIX DN9848E unit. It is possible to connect to other HELIX DN9848E units from the rear Ethernet port(s) when using a serial connection, but note that this will be slower than using Ethernet.

  • Page 44: Connection And Configuration Procedure

    KK systems USB/232 converter plus host cable For details of converters plese refer to http://www.klarkteknik.com/faq_connections.htm For details on configuring and controlling the DN9848E from the Elgar Library Manager and HELIX DN9848E RCS add-in software, please refer to the relevant documentation.

  • Page 45: Application Notes

    All other settings are default on both units. As with all units that use sigma-delta ADC and DAC converters, there is a propagation delay from input to output, 3.2 ms for the DN9848E and 2.1 ms for the competitor unit, the additional delay in...

  • Page 46: Application Notes

    In order to prevent driver failure, the competitor product’s limiter threshold needs to be reduced such that the peak of the transient is at the same level as the threshold of the DN9848E’s look-ahead limiter, with a major effect on efficiency of speaker systems, as the effect of reducing the limiter threshold is to limit the amount of continuous output power available, which means more amplifiers and more speaker cabinets to achieve the same SPL.

  • Page 47: Phase-Adjustment With The Dn9848E

    The first filter of the DN9848E is presented as a “phase shifter” for which you can specify a particular phase shift at a reference frequency , namely a HPF or LPF (typically the crossover point) or one of the 6 PEQs.
  • Page 48 Application Notes Audio Precision 1st order allpass @ 300, 1K, 10K 01/19/01 16:00:02 +150 +150 +100 +100 -100 -100 -150 -150 C olor Lin e Style Th ick D ata Axis Gree n Solid An lr.Pha s e Left Ye llo w Solid An lr.Pha s e R igh t...

  • Page 49: Technical Specification

    Technical Specification 11. T ECHNICAL PECIFICATION Digital Inputs Two 2-Channel Inputs Type AES/EBU Impedance (Ω) Sample Rate 44.1kHz, 48kHz, 88.2kHz*, 96kHz* Word Length 24-bit or 16-bit * SRC Input at these sample rates Analogue Inputs Four Type Electronically balanced (Pin 2 Hot) Impedance (Ω) Balanced 20k, Unbalanced 10k Common Mode Rejection...
  • Page 50 Technical Specification Output Processing (per channel) Routing Full featured matrix mixing: any combination of inputs can be routed to any output in 0.1dB steps from 0dB to –40dB and OFF. Delay (at 20°) Time: 0 to 300ms; 0 to 1ms in 5.2µs steps and 1ms to 300ms in 0.01ms steps Metric: 0 to 103.06 metres in steps of 0.1 m Imperial:...

  • Page 51: Service Information

    Service Information 12. S ERVICE NFORMATION 12.1. Battery This unit contains a battery. Do not expose unit or batteries to excessive heat, such as may be caused by sunshine, fire or the like. 12.1.1 Replacement Caution!: Danger of explosion if battery is incorrectly placed. Replace only with the same or equivalent type recommended by the manufacturer.
  • Page 52 Service Information...

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