DN9340E/DN9344E Digital Equaliser 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 DN9340E/DN9344E HELIX Operator Manual DOC02-DN9340E/44E 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.
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.
Telex Communications (UK) Limited, Klark Teknik Building, Walter Nash Road, Kidderminster. Worcs. DY11 7HJ. England. Tel: +44 1562 741515 Fax: +44 1562 745371 www.midasconsoles.com www.klarkteknik.com DECLARATION OF CONFORMITY We, Telex Communications (UK) Limited of, Klark Teknik Building, Walter Nash Road, Kidderminster, Worcestershire, DY11 7HJ.
Thank You For Using This Klark Teknik Product Our engineers have designed this product with uncompromising dedication to providing the superb audio performance, ease of use and rugged reliability that meets the demands of live sound engineering. 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.
6.4. Dynamic Equalisation .................................................................................. 20 6.4.1 Soft Key Functions ............................................................................................. 20 6.4.2 Touchstrip operation with Dynamic equalisation ...................................................... 21 6.5. Filters ..................................................................................................................... 22 6.5.
10. DN9340E AND DN9344E REMOTE CONTROL SETUP ......................................... 40 10.1. Overview ................................................................................................................ 40 10.2. HELIX DN9340E/DN9344E unit interconnections ........................................................... 40 10.2.1 Connecting the HELIX DN9340/DN9344E units in a daisy chain ................................. 41 10.2.
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. Refer servicing to qualified personnel only. This unit is fitted with a standard fused IEC mains power socket.
Quick Reference 1. QUICK REFERENCE 1.1. DN9340E Front Panel 2 1 6 3 7 4 8 9 5 10 11 12 13 1 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. 2 EQ active LEDs These show if a particular type of EQ is currently affecting the overall frequency response.
Quick Reference 1.2. DN9344E Front Panel 1 1 2 3 5 4 7 6 8 1 9 2 1 5 3 4 6 10 1 Remote control active indicators (green) x 4 These show that that the master unit is currently controlling 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.
DN9340E & DN9344E Key Features 2. INTRODUCING THE DN9340E/DN9344E The Klark Teknik DN9340E Helix digital equaliser is a two-channel audio digital equaliser packaged in a 2RU, 19” rack-mounting format. The two channels can be controlled independently as two separate mono equalisers or linked for stereo operation. The unit has been designed to build on Klark Teknik's unrivalled reputation for high quality equalisation, while addressing a number of limitations in more conventional products.
DN9340E & DN9344E Key Features Space efficiency The Helix system allows exceptionally compact EQ systems to be assembled. For example, one DN9340E and six DN9344E units would provide 26 channels of EQ, each with graphic, parametric, and dynamic EQ, plus flexible filters, all in 8U of rack space. Interface to Midas consoles To further enhance the speed of operation of the Helix system, an interface is provided that connects to Midas Heritage and Legend series consoles.
Controls, Connectors, Indicators: DN9340E 3. FRONT PANEL: DN9340E 3.1. EQ Access and Displays 1 2 3 4 1 Access buttons Access buttons to control each type of equalisation: GRAPHIC, 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.
Controls, Connectors, Indicators: DN9340E 3.2. Bypass, Channel Select, Soft Keys and Alphanumeric Display 3 1 4 2 1 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 button), the bypass operates on that type of EQ only. 2 Channel SELECT button Press to select either channel A or B for control.
Controls, Connectors, Indicators: DN9340E 3.3. Touch Strip, Store and Recall, Home (Setup) and Data Entry 4 1 2 3 1 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. Press and hold or tap repeatedly to increase the level (upper strip) or reduce it (lower strip).
Controls, Connectors, Indicators: DN9340E 3.4. PC Port, Metering and Power 6 1 2 3 4 5 1 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.) 2 Input Metering Input metering incorporating multi-point clip indication. This meter indicates the input level immediately after the input gain trim. 3 Metering Dynamic EQ metering.
Controls, Connectors, Indicators: DN9340E 4. REAR PANEL: DN9340E 1 2 3 7 5 4 6 5 4 1 Mains inlet socket Mains inlet unit is auto sensing over the range 100-240V AC. 2 Ethernet 2-port Ethernet switch for remote control using Cat-5 cabling. 3 RS-232 serial interface RS-232 serial interface for Solo Tracking System operation in association with MIDAS consoles.
Signal Flow: DN9340E 5.
Operation: DN9340E 6. OPERATION: DN9340E 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. On the home page, the large display shows the overall system response.
Operation: DN9340E 6.1.3 Touchstrip Operation on the Home Page In the home page, the touchstrip is inoperative.
Operation: DN9340E 6.2. Graphic Equalisation Select graphic equalisation by pressing the GRAPHIC button. The default display for the graphic EQ is 31 faders indicating the gain of the 31 bands of the 1/3 octave equaliser. The left encoder can be used to select a fader and then the right encoder can be used to set the gain for that fader. Alternatively, the fader can be selected using the upper or lower section of the touch strip.
Operation: DN9340E Automatic features page • Auto Gain - this feature, originally introduced on the Klark Teknik DN3600 equaliser, automatically adjusts the system gain so that the overall program level remains constant despite changes in equalisation. The left encoder enables or disables this feature. If set to “No” then the graphic EQ gain trim (operated by the centre encoder) is entirely manual in operation.
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. Touch either the upper or lower part of the touchstrip below the fader frequency that you want to select. The fader will highlight to indicate the selection.
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.
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. 6.3.2 Touchstrip operation with Parametric equalisation On the Parametric EQ page, the touchstrip can be used to select the currently active section of EQ as an alternative to using the encoder knobs.
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 dynamic EQ sections. However, please note that for each of the two sections of the two there are two different curves drawn. These correspond to the response curve at high signal level and low signal level respectively.
Operation: DN9340E Time constants page This page allows the attack and release time constants to be set - in other words how quickly the unit will respond to a sudden increase in level (attack) or a sudden decrease in level (release). 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.
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. So, for example, if we have three filters in use, and are adjusting the second one the legend would read “Filter 2 of 3”.
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. “Curve” mode shows the overall response of the whole filter module. “Active” mode shows just the response of the single filter currently being selected for adjustment.
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. These can therefore be used as a guide for setting the input gain to match the signal level being sent to the unit.
Operation: DN9340E 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. There are a number of possible strategies for this: A. Recall a memory that contains a suitable set of default values See Section 8 for further details on storing and recalling memories. B.
Setup Menu: DN9340E 7. SETUP MENU: DN9340E 7.1.
Setup Menu: DN9340E 7.2. Comms channel (Page 1) The Comms page lets you select the communications channel on which the unit, acting as slave, will send/receive data to/from a controlling PC. Alternatively, you can select the DN9340E unit as a master to control the network. The master unit not only controls the network but also acts as a slave unit. 7.2.1 Remote control via a PC Comms channels 1 to 32 are available that provide up to 64 inputs in a slave network comprising DN9340E and/or DN9344E units.
Setup Menu: DN9340E 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 1 Press HOME (SETUP) for more than one second to access the Set Up menu; you will be taken immediately to the Comms page. 2 Turn the left control knob clockwise to access the communications channels (SLAVE Mode).
Setup Menu: DN9340E 7.3. Front Panel lock (Page 2) This allows the front panel controls to be locked by means of an eight-character password. Four levels of Panel Lock are possible: • Unlocked – All controls available. • Lock + Recall – This leaves the Recall button active so that saved memories can be still be recalled. • Locked – Imposes a full lockout on the front panel controls, except the HOME (SETUP) button.
Setup Menu: DN9340E 7.4. Analogue/Digital Input Select (Page 3) This page selects the input source for input channels A and B on a paired basis due to the sharing of channels for the AES/EBU input. There are six options available: • ‘Anlg INT’ –audio source is analogue inputs. Internal digital clock is synchronised to on-board reference (either 44.1 kHz or 48 kHz). • ‘Anlg WCK’ - audio source is analogue inputs. Internal digital clock is synchronised to external word clock input (either 44.
Setup Menu: DN9340E 7.5. Digital Output Clock Select (Page 4) 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. • ‘DigSRC WCLK’ – the digital output is locked to the word clock reference input located on the rear panel of the unit.
Setup Menu: DN9340E 7.7. LCD contrast adjustment (Page 6) To ensure optimum screen visibility in a range of lighting conditions, it is possible to individually adjust the contrast of the two LCD displays. • “Alpha” adjusts the contrast of the alphanumeric display • “Graphic” adjusts the contrast of the large graphic display • “INV” allows the mode of the graphic LCD to be switched between white-on-blue to blue-onwhite. 7.8.
Setup Menu: DN9340E 7.10. Power-up Logo (Page 10) The equaliser normally shows a logo page during power-up, including information such as software version number. To switch the logo on/off, turn the left control knob. 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.
Setup Menu: DN9340E 7.11.2 Ethernet Subnet Mask Setup (Page 12) After setting the IP Address, it is necessary to check the Ethernet IP Address Subnet mask on each unit. The default subnet mask is 255.255.0.0. To check and edit the Subnet Mask 1 Step through the Set Up menus to the Ethernet S/Net Network setup page shown opposite. 2 Turn the left control knob and the unit will scan the Network to obtain the Subnet Mask.
Using the DN9340E Memories 8. STORING AND RECALLING SETTINGS: DN9340E 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.
Remote Control 9. DN9340E AND DN9344E MASTER/SLAVE REMOTE CONTROL A DN9340E master unit can control multiple DN9340E and DN9344E units as slaves. For more details on linking units together and remotely control from a PC, see Section 10. Note 9.1. Connections In order to set up a master/slave network Helix system, first connect the units together using the Ethercon connectors on the rear panel, as shown in Section 10.2. 9.2.
Remote Control 9.4. Getting started Connect the units using the Ethernet ports as described above. Set the comms address for each slave unit - 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: 1 Press and hold HOME (SETUP). The left encoder illuminates, to show that it is active. 2 Turn left encoder to select the SLAVE channel number. 3 Press HOME (SETUP) to confirm.
Remote Control 9.5. Operation To select slaves, go to the home page by pressing HOME (SETUP). 1 Press the lowest of the four soft keys labelled "Comms”. A set of boxes will appear on the large graphic screen. The boxes will contain channel numbers, which correspond to each audio channel in the system. 2 Use the touchstrip to select the channel that is to be controlled. Units above the line are selected using the upper touchstrip and units below the line using the lower touchstrip.
Remote Control 9.7. Copy channel function It is possible to copy a whole audio channel's settings to another channel or to multiple channels. Note Mono channels can only be copied to other mono channels, and stereo linked channels can only be copied to other stereo linked channels. 1 On the Master unit's Comms page, press the soft key labelled Copy Mon (to copy mono channels) or the soft key labelled Copy St (to copy stereo channels).
Remote Control 10. DN9340E AND DN9344E REMOTE CONTROL SETUP 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. 10.1.
Remote Control 10.2.1 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.
Remote Control 10.3. Ethernet Connection For familiarisation purposes, a basic Ethernet connection may be made to a single unit by connecting the Ethernet cable to either of the unit’s rear panel Ethernet sockets and to the network socket on the laptop PC or wireless access point (wireless option). Note For Ethernet connectivity, the HELIX DN9340E/DN9344E units must be operating V4.00 (or later) host code. 10.3.
Remote Control 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. This is done by assigning them unique IP addresses on the network. For more details on setting the IP Address and Subnet Mask on the DN9340E, see Section 7.
Remote Control 10.4. 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. 10.4.1 Serial connection details The system set up for serial connection is illustrated below. 10.4.
Controls, Connectors, Indicators: DN9344E 11. FRONT PANEL: DN9344E 11.1. Alphanumeric displays, SETUP, Metering and Power 5 1 2 3 7 4 1 2 3 4 6 1 Alphanumeric Displays for sections 1 and 2 The large red alphanumeric displays can be used to show electronic scribble-strip information, Last Memory Recalled or Set Up menu options. There are two displays, one per section. 2 Input Metering for sections 1 and 2 Incorporating multi-point clip indication.
Controls, Connectors, Indicators: DN9344E 11.2. Indicators, Up and Down Buttons, PC Port and Scribble Strips. 1 3 2 3 1 1 4 5 6 2 3 1 4 1 Remote Control Active indicators (green) for Channel 1A, 1B, 2A and 2B. This indicator shows that the master unit is currently controlling this channel by remote control. Green lamps are often referred to as the “me” lights. 2 Display mode indicators (blue) for sections 1 and 2.
Controls, Connectors, Indicators: DN9344E 12. REAR PANEL: DN9344E 1 2 7 4 3 5 4 3 6 4 3 5 4 3 1 Mains inlet socket Mains inlet unit is auto sensing over the range 100-240V AC. 2 Ethernet 2-port Ethernet switch for remote control using Cat-5 cabling. 3 Inputs 1A, 1B, 2A and 2B Analogue – electronically balanced XLR audio input sockets Pinouts: Pin 1 Screen Pin 2 Hot Pin 3 Return Digital – inputs 1A and 2A support incoming 96kHz AES/EBU signals (AES IN 1 and AES IN 2).
Signal Flow: DN9344E 13.
Operation: DN9344E 14. OPERATION: DN9344E The DN9344E is designed to be remotely controlled using one of the following methods: • Remote control from a master DN9340E unit. For details, see Section 9. • Remote control from a PC running the Elgar Library Manager and HELIX DN9344E RCS add-in software. For details, see Section 10. • Relay operation – where DN9344E memories may be recalled using a simple contact closure mechanism. For details, see Section 15.2. 15. SET UP MENU: DN9344E 15.1.
Operation: DN9344E To select a remote communications channel 1 Press and hold the SET UP button to open the Comms menu. Note that the red alphanumeric displays are now showing Last Recalled Memory and Communication (COMMS) mode. The blue display mode indicator illuminates to emphasise this fact. The UP and DOWN buttons illuminate to show that they are now active. 2 Press UP and DOWN on the left-hand half of the unit (Section 1) to select the desired communications channel.
Operation: DN9344E To enable the Contact Closure (RELAY) mode 1 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. 2 Use the UP and DOWN buttons to select either “RLP” or “RLU” for preset or user memory recall modes.
Operation: 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 1 Press and hold the SETUP button to open the Comms menu. Press SET UP again. 2 Press UP on the right-hand section of the unit (Section 2) to highlight the furthest left digit in that section; a dot will appear at the base of the digit to show that is selected.
Operation: DN9344E 15.5. Digital Output Clock Select (Pages 5 and 6) The next two pages select the clock reference for the digital AES/EBU outputs 1 and 2. Note that the output clock reference settings are independent of sampling frequency. The available options are: • ‘INT’ – the digital output is locked to the DN9344E’s internal system clock. Note that this is the default setting. • ‘WCK’ – the digital output is locked to the word clock reference input located on the rear panel of the unit.
Operation: DN9344E 15.6. Ethernet Settings (Page 7) 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. The IP Address is entered manually on each unit in the network using the DN9344E’s front panel controls. To change the IP address 1 Use the UP and DOWN buttons on the left-hand half of the unit (Section 1) to navigate between each of the four display fields.
Application Notes 16. APPLICATION NOTES 16.1. Dynamic EQ Over the years a number of professional audio products have provided dynamic equalisation functions of various types. What all these systems have in common is that the frequency response of the device varies depending on the signal level. Many units are based on compressor/expander technology with frequency selection, and the controls often resemble those of a dynamics processor.
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]. If we set the frequency and Q controls to the area that we wish to control, then the processor will monitor the signal level in that frequency range.
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.
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: as, where the bandwidth (in Hz) is the range of frequencies affected by the filter.
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. This allows a fairly low-Q filter at small cut and boost settings, providing gentle control of tonal balance and low ripple.
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”. Most equalisers described by their manufacturers as “Constant Q” in fact produce symmetrical responses.
Application Notes 16.3. What is AES/EBU? AES/EBU refers to the professional digital audio transmission system, jointly specified by the Audio Engineering Society (AES) and the European Broadcast Union (EBU), which allows the transmission of two channels down a shielded twisted pair cable using time division multiplexing (TDM) with one sample from each channel being transmitted within the sample period of the system. The system was published as the AES3 standard.
Technical Specification: DN9340E 17. TECHNICAL SPECIFICATION 17.1. DN9340E Analogue Inputs Two Type Impedance (Ω) Common Mode Rejection Electronically balanced (pin 2 hot) 20k >80dB @ 1kHz Digital Inputs One 2-Channel Input Type Impedance (Ω) Sample Rate Word Length AES/EBU 110 44.1kHz, 48kHz, 88.
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.
Technical Specification: DN9344E 17.2. DN9344E Analogue Inputs Four Type Impedance (Ω) Common Mode Rejection Electronically balanced (pin 2 hot) 20k >80dB @ 1kHz Digital Inputs Two 2-Channel Inputs Type Impedance (Ω) Sample Rate Word Length AES/EBU 110 44.1kHz, 48kHz, 88.
Technical Specification: DN9344E Power Requirements Voltage Consumption 90V to 250V a.c. 50/60 Hz 60W Terminations Audio inputs/outputs Ethernet inputs/outputs RS-232 Relay Socket Power 3-pin XLR Ethercon 8-pin Mini-DIN socket (front) 9-pin D-type (rear) 3-pin IEC Dimensions and Weight Width Height Depth Nett Weight Shipping Weight 483 mm (19 inch) 44 mm (1.75 inch) 1RU High 287 mm (12 inch) 5.5 kg 7.
Service Information 18. SERVICE INFORMATION 18.1. 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. 18.1.1 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.