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Klark Teknik DN9340E Operator's Manual

Digital equaliser
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DN9340E/DN9344E
Digital Equaliser
Operator Manual
Software Version 4.00
Klark Teknik
Klark Teknik Building
Walter Nash Road
Kidderminster
Worcestershire
DY11 7HJ
England
Tel:+44 1562 741515
Fax:+44 1562 745371
Email: info@uk.telex.com
Website: www.klarkteknik.com
DN9340E/DN9344E HELIX V4.00 Operator Manual
DOC02-DN9340E/44E Issue A – March 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 Operators 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 DN9340E/DN9344E HELIX V4.00 Operator Manual DOC02-DN9340E/44E Issue A – March 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 Operators Manual was correct at the time of writing. E&OE.

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS WARNING : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE AVIS: RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR These symbols are internationally accepted symbols that warn of potential hazards with electrical products.

  • 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. Please ensure that you read both the Important Safety Instructions and Attention! pages.
  • Page 8 10.2. HELIX DN9340E/DN9344E unit interconnections ............41 10.2.1 Connecting the HELIX DN9340/DN9344E units in a daisy chain ......... 42 10.2.2 Connecting the HELIX DN9340E/DN9344E units to an Ethernet switch or hub....42 10.3. Ethernet Connection ....................43 10.3.1 Ethernet connection – standard ................43 10.3.2...
  • Page 9 16.2. What do we mean by all these Q types? ..............60 16.3. What is AES/EBU? ....................63 17. T ................. 64 ECHNICAL PECIFICATION 17.1. DN9340E ........................ 64 17.2. DN9344E ........................ 66 18. S ................68 ERVICE NFORMATION 18.1. Battery Replacement ....................68...

  • Page 11: 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 13: Quick Reference

    Quick Reference 1. Q UICK EFERENCE 1.1. DN9340E Front Panel 10 11 Access buttons Access buttons to control each type of equalisation – GRAPHIC, PARAMETRIC, DYNAMIC, FILTERS. Press the HOME (SETUP) button (11) to return to the home page. EQ active lights These show if a particular type of EQ is currently affecting the overall frequency response.

  • Page 14: Dn9344E Front Panel

    Quick Reference 1.2. DN9344E Front Panel Remote control active These show that that the master unit is currently controlling indicators (green) x 4 the channel by remote control. Often referred to as the “me” light. There is one indicator for each of the channels 1A, 1B, 2A and 2B.

  • Page 15: Introducing The Dn9340E/Dn9344E

    The Klark Teknik DN9344E Helix Slave digital equaliser is a 1U slave version of the DN9340E unit. By packaging FOUR channels of Helix processing into a 1U case, it offers unrivalled space efficiency, with a cost per channel lower than many less flexible products.
  • Page 16 (or RS-232 PC port on the front panel). This network can provide up to 32 channels, each with A and B inputs. Alternatively, a DN9340E master unit can control a network comprising up to 32 channels provided by DN9340E and/or DN9344E units acting as slaves. The master unit also acts as a single slave.

  • Page 17: Front Panel : Dn9340E

    Controls, Connectors, Indicators: DN9340E 3. F : DN9340E RONT ANEL 3.1. EQ Access and Displays Access buttons to control each type of equalisation: GRAPHIC, Access buttons PARAMETRIC, DYNAMIC, and FILTERS. Pressing one of these buttons selects the type of EQ to be controlled. These buttons do not affect the actual sound at all - they just activate the controls.

  • Page 18: Bypass, Channel Select, Soft Keys And Alphanumeric Display

    Controls, Connectors, Indicators: DN9340E 3.2. Bypass, Channel Select, Soft Keys and Alphanumeric Display BYPASS button On the home page this bypasses the complete unit for the selected channel (both channels if linked). When a particular EQ type is selected (by the buttons above the bypass switch), the bypass operates on that type of EQ only.

  • Page 19: Touch Strip, Store And Recall, Home (Setup) And Data Entry

    Controls, Connectors, Indicators: DN9340E 3.3. Touch Strip, Store and Recall, Home (Setup) and Data Entry Two part touch strip The touchstrip is used to select individual faders or filters and can also be used to adjust gain settings. Press either part briefly to select a particular filter or fader.

  • Page 20: Pc Port, Metering And Power

    Controls, Connectors, Indicators: DN9340E 3.4. PC Port, Metering and Power PC port connector 8-pin mini-DIN socket for connecting to an RS-232 serial port on a PC or other remote control device. (Ethercon connectors are provided on the rear panel for remote control via Ethernet.)

  • Page 21: Rear Panel : Dn9340E

    Controls, Connectors, Indicators: DN9340E 4. R : DN9340E ANEL Mains Mains inlet unit is auto sensing over the range 100-240V AC. inlet socket Ethernet 2-port Ethernet switch for remote control using Cat-5 cabling. RS-232 serial interface RS-232 serial interface for Solo Tracking System operation in association with MIDAS consoles.

  • Page 22: Signal Flow: Dn9340E

    Signal Flow: DN9340E 5. S : DN9340E IGNAL...

  • Page 23: Operation: Dn9340E

    Operation: DN9340E 6. O : DN9340E PERATION 6.1. Home Page The home page is accessed from any of the EQ pages by pressing the HOME (SETUP) button. In the setup menu the HOME (SETUP) button is pressed repeatedly to move through the menus. After the last menu entry the display returns to the home page.

  • Page 24: Touchstrip Operation On The Home Page

    Operation: DN9340E 6.1.3 Touchstrip Operation on the Home Page In the home page, the touchstrip is inoperative.

  • Page 25: Graphic Equalisation

    EQ type - allows the selection of different EQ characteristics. Proportional, Constant and Symmetrical-Q types are available, together with emulations of the classic Klark Teknik DN360 and DN27. See the application notes later in this manual for more detail on selecting EQ types and Q.
  • Page 26 This function enables automatic room equalisation based on an audio spectrum from a DN6000. Note that the DN9340E auto equalises on the basis of a captured DN6000 ‘snapshot’; it does not auto-equalise in real-time. The Helix unit generates a reciprocal response curve that compensates for peaks and troughs in the snapshot audio spectrum, so creating a overall flat response.

  • Page 27: Touchstrip Operation With Graphic Equalisation

    Operation: DN9340E 6.2.2 Touchstrip operation with Graphic equalisation On the Graphic EQ page, the touchstrip provides an alternative to using the encoder knobs for selecting and operating the faders on the display. If you are not currently using the Freq/Level menu, the unit automatically switches to it when you press the touchstrip.

  • Page 28: Parametric Equalisation

    Operation: DN9340E 6.3. Parametric Equalisation Select parametric equalisation by pressing the PARAMETRIC button. Soft key display The display for the parametric equaliser is similar to the home page, showing the frequency response - in this case just for the parametric sections. At the top is a legend that shows which PEQ section is currently active for control and also how many sections are in use.

  • Page 29: Touchstrip Operation With Parametric Equalisation

    Operation: DN9340E EQ remove page This page allows the currently-selected PEQ section to be deleted entirely (as opposed to bypassed see IN/OUT below). The centre encoder is turned clockwise to remove the section, and then the right encoder is also turned clockwise to confirm.

  • Page 30: Dynamic Equalisation

    Operation: DN9340E 6.4. Dynamic Equalisation Select dynamic equalisation by pressing the DYNAMIC button. The display for the parametric equaliser is similar to the home page, showing the frequency response of the two dynamic EQ sections. However, please note that for each of the two sections there are two different curves drawn.

  • Page 31: Touchstrip Operation With Dynamic Equalisation

    Operation: DN9340E EQ settings page • EQ type - this allows control over the characteristics of the equaliser. Proportional, Constant, and Symmetrical curves are available. • Graph display - two modes are available, to ensure that clear information is available for any application.

  • Page 32: Filters

    Operation: DN9340E 6.5. Filters Select filters by pressing the FILTERS button. Number of active filter section Soft key display The display for the filters is similar to the home page, showing the frequency response - in this case just for the filters. At the top is a legend that indicates which filter is currently active for control and also how many filters are in use.

  • Page 33: Touchstrip Operation With Filters

    Operation: DN9340E Filter settings page • Filter type - available types are Notch, Low Pass (normal and peaking), High Pass (normal and peaking), Hi Shelf and Lo shelf. • Graph display - three modes are available, to ensure that clear information is available for any application.

  • Page 34: Metering

    Operation: DN9340E 6.6. Metering Comprehensive audio metering is provided by eight LED bargraph meters: There are a pair of input meters (labelled “A” and “B” for audio channels A and B, respectively) that show the input level immediately following the input gain control.

  • Page 35: Clear Down Sequence

    6.7. Clear Down Sequence Because of the comprehensive facilities available on the DN9340E, it may be important to ensure that the unit is ‘cleared down’ before use. Remember to clear down both channels A and B if the unit is not linked for stereo operation.

  • Page 36: Setup Menu: Dn9340E

    7. S : DN9340E ETUP MENU 7.1. General The DN9340E provides various set up options for adapting the operation of the unit to best suit your operational requirements and preferences, as follows: • Comms channel setting for controlling a network remotely via a PC or using a DN9340E as a master controller (Page 1) •...

  • Page 37: Comms Channel

    Comms channels 1 to 32 are available providing up to 64 inputs in a slave network comprising DN9340E and/or DN9344E units. The units are remotely controlled from a PC using the Elgar Library Manager and HELIX DN9340E/DN9344E RCS add-in software. For more information on remote control set ups, see Section 10.

  • Page 38: Using A Dn9340E For Master Control

    7.2.2 Using a DN9340E for master control Comms channels 1 to 32 are available, enabling a mater/slave network with one DN9340E unit acting as the master and up to 31 DN9340E and/or DN9344E slave units. To select a master remote communications channel Press HOME (SETUP) for more than one second to access the Set Up menu;...

  • Page 39: Front Panel Lock

    If correct, the display will report ‘UNLOCKED’. Press HOME (SETUP) to exit the page and return to normal operation. If you have entered the wrong password, the DN9340E will flag it as incorrect and return to the Panel Unlock page for a further attempt.

  • Page 40: Analogue/Digital Input Select

    Use the left control knob to select the input source for channels A and B. Note The ‘Ref’ menu shows the clock reference for the DN9340E, for example, Internal. If the input is set to ‘DigLock’, then this menu becomes active; turn the right control knob to select the input clock reference from internal to AB (lock to the channel’s...

  • Page 41: Digital Output Clock Select

    This page selects the clock reference for the digital AES/EBU outputs. Note that the output clock reference settings are independent of sampling frequency. The available options are: • ‘System’ – the digital output is locked to the DN9340E’s system clock. Note that this is the default setting. •...

  • Page 42: Lcd Contrast Adjustment

    For Metric or Imperial distance measurement, specify the ambient temperature of the venue using the centre control knob. The DN9340E 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 43: Power-Up Logo

    7.11. Ethernet Settings (Pages 11 and 12) When controlling the DN9340E unit remotely via Ethernet, the unit requires an individual IP Address and Subnet Mask to be set. For more information on DN9340E remote control set ups, see Section 8. 7.11.1...
  • Page 44 It is important that all units and the controlling PC have a unique IP Note Address in order for the network to function correctly. For more information on configuring your network, please see the HELIX DN9340E and DN9344E RCS User Guide. To change to DHCP mode...

  • Page 45: 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 DN9340E and DN9344E RCS User Guide. For more information on remote control setups, see Section 9.

  • Page 46: Storing And Recalling Settings : Dn9340E

    ECALLING ETTINGS The DN9340E includes two types of memory location, to provide maximum flexibility in a range of applications. There are 32 user memories in battery-backed-up SRAM and 32 preset memories in non-volatile FLASH memory. Recalling settings from either memory type uses the same procedure, and the user memories can be stored directly from the front panel of the unit.

  • Page 47: Dn9340E And Dn9344E Master /Slave Remote Control

    “Get all” data from the slaves or to “Set all” data from the master. This allows the settings for up to 64 channels of audio to be stored in a single DN9340E or, conversely, an “empty”...

  • Page 48: Getting Started

    - ignore the master unit for now. It doesn't matter what addresses you use, but each unit MUST have a unique address (two unique addresses for a DN9344E). On a DN9340E: Press and hold HOME (SETUP). The left encoder illuminates, to show that it is active.

  • Page 49: Operation

    Long name: This 20-character name will be used on the master unit to indicate to the user which of the slaves is being controlled. It is also displayed on any DN9340E units that are being used as slaves. The first nine characters are not editable, and show the channel number.

  • Page 50: Copy Channel Function

    Midas Heritage and Legend consoles. The console RS-232 port is connected to the RS-232 connector (D9) on the rear of the master DN9340E unit using a straight-wired cable (no crossovers). Once the channel assignments have been configured (see below), pressing a solo button on the console will automatically select the channel of EQ that corresponds to that console function onto the master unit, ready to be controlled.

  • Page 51: Dn9340E And Dn9344E Remote Control Setup

    ONTROL ETUP A slave network of up to 32 DN9340E/DN9344E units can be linked together and remotely controlled from a PC running the Elgar Library Manager and HELIX DN9340E or DN9344E RCS add-in software. Further details on these commercially available software applications can be found on the Klark Teknik website at www.klarkteknik.com.

  • Page 52: Connecting The Helix Dn9340/Dn9344E Units In A Daisy Chain

    The diagram below shows a typical example of the HELIX DN9340/DN9344E units connected in a daisy chain configuration. 10.2.2 Connecting the HELIX DN9340E/DN9344E units to an Ethernet switch or hub The diagram below shows each HELIX DN9340E/DN9344E unit directly connected to an Ethernet switch or hub, which is then connected top a laptop/PC.

  • Page 53: 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 DN9340E/DN9344E units (daisy chain), or an Ethernet switch or hub, depending on system configuration.

  • Page 54: Configuring The Dn9340E For Network Communication

    Remote Control Setup 10.3.3 Configuring the DN9340E for Network Communication Before you can control the DN9340E from your remote software, there are number of configuration settings to check on the DN9340E unit(s): • First, you must configure the system devices (the laptop/PC and HELIX DN9340E units) to communicate with each other using TCP/IP protocol.

  • Page 55: Serial Connection (Option)

    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 DN9340E/DN9344E unit. It is possible to connect to other HELIX DN9340E/DN9344E units from the rear Ethernet port(s) when using a serial connection, but note that this will be slower than using Ethernet.

  • Page 56: Front Panel : Dn9344E

    Controls, Connectors, Indicators: DN9344E 11. F : DN9344E RONT ANEL 11.1. Alphanumeric displays, SETUP, Metering and Power Alphanumeric Displays The large red alphanumeric displays can be used to show for sections 1 and 2 electronic scribble-strip information, Last Memory Recalled or Set Up menu options.

  • Page 57: Indicators, Up And Down Buttons, Pc Port And Scribble Strips

    Controls, Connectors, Indicators: DN9344E 11.2. Indicators, Up and Down Buttons, PC Port and Scribble Strips. Remote Control Active This indicator shows that the master unit is currently indicators (green) for controlling this channel by remote control. Green lamps are Channel 1A, 1B, 2A and often referred to as the “me”...

  • Page 58: Rear Panel : Dn9344E

    Controls, Connectors, Indicators: DN9344E : DN9344E ANEL Mains inlet socket Mains inlet unit is auto sensing over the range 100-240V AC. Ethernet 2-port Ethernet switch for remote control using Cat-5 cabling. Inputs 1A, 1B, 2A and 2B Analogue – electronically balanced XLR audio input sockets Pinouts: Pin 1 Screen Pin 2 Hot...

  • Page 59: Signal Flow : Dn9344E

    Signal Flow: DN9344 13. S : DN9344E IGNAL...

  • Page 60: Peration : Dn9344E

    The Comms page lets you select the communications channel on which the unit will send/receive data to/from a controlling PC or master DN9340E unit. Note that each DN9344 has TWO independent communications channels (one for Section 1 and one for Section 2) as it contains the equivalent of TWO DN9340 master units.
  • Page 61 DN9344E is seen by the system management software as representing two individual DN9340E units, each with two channels. This allows DN9340E and DN9344E units to be freely swapped in and out of the system without changing the mapping between audio channels and communications channels.
  • Page 62 Set Up Menu: DN9344E To enable the Contact Closure (RELAY) mode Press and hold the SETUP button to enter the SETUP menu. Note that the red alphanumeric displays are now showing Last Recalled Memory and Communication (COMMS) mode. The blue display mode indicator lights to emphasise this fact. The UP and DOWN buttons illuminate to show that they are now active.

  • Page 63: Password Page

    Set Up Menu: DN9344E 15.3. Password Page (Page 2) This allows the presets to be password protected to prevent unauthorised editing. The password is six characters long. To set a password Press and hold the SETUP button to open the Comms menu. Press SET UP again. Press UP on the right-hand section of the unit (Section 2) to highlight the furthest left digit in that section;...

  • Page 64: Digital Output Clock Select (Pages 5 And 6)

    15.6. Ethernet Settings (Pages 7, 8 and 9) When controlling the DN9340E unit remotely via Ethernet, the unit requires an individual IP Address and Subnet Mask to be set. For more information on remote control set ups, see Sections 9 and 10.

  • Page 65: Ip Address

    Set Up Menu: DN9344E To change the IP Address Mode With the DN9344E connected to your network, step through the Set Up menus to the ‘IP ADD’ setup page shown below: Use the UP and DOWN buttons on the right-hand half of the unit (Section 2) to change between the three available options.

  • Page 66: Subnet Mask

    ‘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 DN9340E/DN9344E RCS User Guide. For more information on remote control setups, see Sections 9 and 10.

  • Page 67: Application Notes

    The system developed by the Klark Teknik research and development team for the Helix series is rather different. It draws on KT's unrivalled experience in equalisation, and uses the signal level to directly control parametric equalisers.

  • Page 68: Application Notes

    Application Notes If we now replace the parametric with a Helix equaliser and select the dynamic EQ, we have some additional controls. Frequency and Q controls are as before, but now we have two pairs of controls replacing the single cut and boost control; these are [low threshold] / [low level], and [high threshold] / [high level].
  • Page 69 Application Notes Without changing modes or making any other selections, we can make the unit operate ‘the other way up’ just by selecting suitable values for the two thresholds and levels see Figure 3. In this case, [low threshold] is -20dBu, [low level] is 0dB, [high threshold] is -5dBu, and [high level] is +12dB, so that instead of cutting this frequency range as the level increases, we are now boosting it.

  • Page 70: What Do We Mean By All These Q Types

    Application Notes 16.2. What do we mean by all these Q types? The “Q” of an audio equaliser describes the steepness of the filter - the degree to which it will affect signals either side of its nominal or “centre” frequency. In general, the Q of a peaking filter is defined mathematically: where the bandwidth (in Hz) is the range of frequencies affected by the filter.
  • Page 71 Application Notes Proportional Q Proportional Q is the mode of operation familiar to users of the Klark Teknik analogue graphic equalisers, such as the DN360. As the amount of cut or boost is increased, the Q also increases. This has the effect of making the equaliser “focus” more tightly as the amount of EQ is increased.
  • Page 72 Application Notes Symmetrical Q This class of equaliser has the same curves in boost as the constant-Q type, but then has cut responses that are symmetrical with the boost ones. In other words, the bandwidth in cut is defined not according to our usual definition of Q (see constant-Q above) but as “the point were the signal is cut by 3dB less than the maximum cut”.

  • Page 73: What Is Aes/Ebu

    All DN9000E series Helix units feature sample rate converters (SRCs) on their AES/EBU inputs and, in the case of the DN9340E Helix Dual EQ and DN9344 Quad EQ, SRCs on their AES/EBU outputs as well. This allows the units to interface to AES/EBU systems operating up to 96kHz, including the Midas XL8 Live Performance System.

  • Page 74: Technical Specification

    Technical Specification: DN9340E 17. T ECHNICAL PECIFICATION 17.1. DN9340E Analogue Inputs Type Electronically balanced (pin 2 hot) Impedance (Ω) Common Mode Rejection >80dB @ 1kHz Digital Inputs One 2-Channel Input Type AES/EBU Impedance (Ω) Sample Rate 44.1kHz, 48kHz, 88.2kHz*, 96kHz*...
  • Page 75 Technical Specification: DN9340E Processing (Per Channel) Input Gain +12dB to 40dB in 0.1dB steps plus Off Delay 0-1 second (342.25 m or 333'10” at 20C in 20.8µs steps) Filters 4 Filters (max) Types Low Pass, High Pass, Low Shelf, High Shelf, Notch...

  • Page 76: Dn9344E

    Technical Specification: DN9344E 17.2. DN9344E Analogue Inputs Four Type Electronically balanced (pin 2 hot) Impedance (Ω) Common Mode Rejection >80dB @ 1kHz 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 Word Clock Input Type...
  • Page 77 Technical Specification: DN9344E Power Requirements Voltage 90V to 250V a.c. 50/60 Hz Consumption Terminations Audio inputs/outputs 3-pin XLR Ethernet inputs/outputs Ethercon RS-232 8-pin Mini-DIN socket (front) Relay Socket 9-pin D-type (rear) Power 3-pin IEC Dimensions and Weight Width 483 mm (19 inch) Height 44 mm (1.75 inch) 1RU High Depth...

  • Page 78: Service Information

    Service Information 18. S ERVICE NFORMATION 18.1. Battery Replacement Caution!: Danger of explosion if battery is incorrectly placed. Replace only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer’s instruction. Advarsel!: Lithiumbatteri. Ekxplosionsfare ved feijlagtig handtering af samme fabrikat og type. Lever det brugte batteri tilbage till leverandoren.

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