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Telex DOC02-DN9848 - page 1
Software Version 3.02 Telex Communications (UK) Limited, Klark Teknik Building, Walter Nash Road, Kidderminster. Worcestershire. DY11 7HJ. England. Tel:+44 (0) 1562 741515 Fax:+44 (0) 1562 745371 Email: sales@ktgplc.com Website: www.klarkteknik.com DN9848 Loudspeaker Processor Operat ors Manual DOC02-DN9848 Issue 2.0 - January 2005 (c) Telex Commun ...
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Telex DOC02-DN9848 - page 2
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Telex DOC02-DN9848 - page 3
IMPORTANT SAFETY INSTRUCTIONS These symbols are internationally accepted symbols that warn o f potential hazards with electrical products. The lightning flash with arrowhead symbol, within an equilat eral triangle is intended to alert the user to th e presence of uni nsulated “dangerous voltage” within the product's encl osure that may be ...
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Telex DOC02-DN9848 - page 4
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Telex DOC02-DN9848 - page 5
Telex Communica tions (UK) Limited, Kla rk Teknik Bu ilding, Walter Nash Road, Kiddermi nster. Worcs. DY11 7 HJ. England. Tel: +44 1562 741515 Fax: +44 15 62 745371 www.midasconsoles .com www.klarktekn ik.com DECLARATION OF CONFORMITY We, Telex Communications (UK) Limited of, Klark Teknik Building, Walter Nash Road, Kidderminster, Worcestershire, D ...
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Telex DOC02-DN9848 - page 6
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Telex DOC02-DN9848 - page 7
Thank You For Using This Klark Teknik Prod uct Our engineers have designed this product with unc ompromising dedicati on to providing the superb audio performance, ease of use and rugged re liability that meets the demands of live sound engineering. Please take time to complete and return the Kl ark Teknik three-year warranty registration card and, ...
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Telex DOC02-DN9848 - page 8
6.2.9 Output Limiter ................................................................................................... 17 6.3. Monitoring the Ou tput Signal...................................................................................... 17 6.4. Output Gain and Mute - Front Panel Co ntrol ..................................................... ...
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Telex DOC02-DN9848 - page 9
ATTENTION! 1 Please ensure that you read and follow the IMPORTANT SAFETY INSTRU CTIONS at the front of this manual and the SAFETY WARNINGS and INSTALLATION CONSIDERA TIONS 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 qualif ...
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Telex DOC02-DN9848 - page 10
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Telex DOC02-DN9848 - page 11
DN9848 Key Features 3 1. I NTRODUCING THE DN9848 The DN9 848 is a h ighly co nfigur able, d igital e lectr onic cross-over/loudspeaker management system comprising four balanced analogue input channels and eight balanced analogue output channels. Its unrivalled routing flexi bility enables each output to be sourced from a single input, a pair of in ...
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Telex DOC02-DN9848 - page 12
Controls, Connectors, Indicators 4 2. F RONT P ANEL 1 Input channels A-D Menu Access Buttons A-D Press to access and step through the menu pages for the respective input. The availabl e pages depend on the current security setting. The button is lit when active. Signal Level Meters A - D 9-segment signal meters for monitoring signal level (compress ...
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Telex DOC02-DN9848 - page 13
Controls, Connectors, Indicators 5 3. R EAR P ANEL 1 IEC fused mains inlet socket For mains power connection. Accepts input voltages from 100-240V AC 50/60Hz. 2 COMMS In and Out Communications input and output for remote control using XLR cab ling. 3 Outputs 1-8 Electronic ally b alanced XLR aud io output plugs Pinouts: Pin 1 Screen Pin 2 Hot Pin 3 ...
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Telex DOC02-DN9848 - page 14
DN9848 Menu System 6 4. P ROGRAMMING S ETTINGS 4.1. The DN9848 Programming Panel All the parameters for input and output signal processing and routing are defined vi a function specific menu pages that are displayed and edited at the pr ogramming panel shown below. As described in the illustration, each menu page uses a standard layout that relates ...
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Telex DOC02-DN9848 - page 15
DN9848 Menu System 7 If you prefer to program each parameter in turn across all the input/output channels, you can also skip across from the current channel to the same page on another input/output channel by pressing the MENU ACCESS button of the other channel. If you want to jump to the first p age of a different channel, press the HOME button an ...
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Telex DOC02-DN9848 - page 16
DN9848 Menu Map 8 ...
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Telex DOC02-DN9848 - page 17
Input Channels 9 5. I NPUT C HANNELS 5.1. Brief Technical Overview Referring to the illustration below, each input channel of the DN9848 processes the audio signal through delay and gain stages, followed by 12 ba nds of parametric equalisati on, and a full-band compressor. All key stages are monitored for signal clippi ng which, if detected, lights ...
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Telex DOC02-DN9848 - page 18
Input Channels 10 5.2.3 Gain and Delay (Page 1) Gain and delay are also set in the fi rst page of the channel’s menu, providing easy access for quick adjustment during set up or performance. Note that the dela y can be sp ecified in t erms of t ime or distance, as preferred. The unit of measurement i s changed in the Set Up menu (see Sectio n 7.6 ...
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Telex DOC02-DN9848 - page 19
Input Channels 11 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’ response. ...
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Telex DOC02-DN9848 - page 20
Output Channels 12 6. O UTPUT C HANNELS 6.1. Brief Technical Overview The outp ut channe ls are sl ightly mo re comp lex than th e input c hannels in tha t they ar e respo nsible for the signal routing as well as output signal pr ocessing. At the input of each output channel is a routing block that can source the output si gnal from a sing le inpu ...
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Telex DOC02-DN9848 - page 21
Output Channels 13 6.2. Setting Output Parameters Signal processing for each output channel is programmed independently via the separate Output menu associated with each channel. The signal processing parameters are described below i n menu order. To access the Output menu pages for a particular channel Press its yellow MENU ACCESS button ( ...
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Telex DOC02-DN9848 - page 22
Output Channels 14 6.2.4 Signal Invert, Delay and Output Level (Page 3) Each output can be phase inverted by 180 º (separate to the phase-alignment for cross-over), delayed for system alignment and the level attenuated or boosted. Delay can be specified in terms of time or distance, as preferred. The unit of measurement is changed i n the Set Up m ...
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Telex DOC02-DN9848 - page 23
Output Channels 15 To apply a 1st order phase adjustment in relation to a chosen frequency 1 Step to the All-Pass page shown right. 2 Turn the right-hand knob to enable a 1st (90 º ) order shift. 3 Turn the left-hand knob to the required frequency. To apply a ‘shaped’ phase transition at a chosen frequency 1 Step to the All-Pass page. ...
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Telex DOC02-DN9848 - page 24
Output Channels 16 6.2.7 Parametric Equalisation (Pages 2 to 13) The DN9848 provides six parametric equali sation stages on each output channel, for equalising the output signal in respect of loudspeaker and/or system characteristics. The first and last of these PEQ sections can be alternatively be configured for lower and upper shelving equal isat ...
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Telex DOC02-DN9848 - page 25
Output Channels 17 3 Turn the left-hand knob clockwise to access the second sub-menu page. Use the centre knob to set the compressor attack time (range of 40 s – 1ms in 20 s steps or 1ms to 100ms in 1ms steps). Use the right-hand knob to set the release ti me (10ms to 2s in 10ms steps). To switch the compressor out of the circuit ...
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Telex DOC02-DN9848 - page 26
Output Channels 18 1 The meter uses a downward relative scale where the 0 segment repres ents the limiter threshold. For example, if the limiter thre shold is set to +5dB in the output menu page, then the signal meter 0 segment repres ents 5dBu true value, the –3 segment becomes 2dBu down, - 6 becomes -1dBu down and so on. The compressor threshol ...
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Telex DOC02-DN9848 - page 27
Security and other Set Up Options 19 7. DN9848 S ET U P O PTIONS 7.1. General The DN9848 provides various set up options for adapting the operation of the unit to best suit your operational requirements and preferen ces, as follows: Comms channel setting for remote control Security features Display lighting Unit and memory naming ? ...
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Telex DOC02-DN9848 - page 28
Security and other Set Up Options 20 To set a Panel Lock 1 Step through the Set Up menu to the Panel Lock menu page. 2 Use the left and centre knobs to set a password of 12 characters, including blank spaces, made up of letters, numbers and/or symbols. Important! Note that preliminary and subsequent blank spaces are recorded as part of the 12-c ...
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Telex DOC02-DN9848 - page 29
Security and other Set Up Options 21 To switch System Protect on 1 Step through the Set Up menu to the System Protect menu page. 2 Use the left and centre knobs to set a password of 12 characters (including blank spaces) made up of letters, numbers and a limited number of symbols. Important! Note that preliminary and subsequent blank spaces are ...
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Telex DOC02-DN9848 - page 30
Security and other Set Up Options 22 Names can also be allocated to indivi dual input and output channels via their associated menus (see Sections 5.2.2 and 6.2.2). All names are stored with User and System memory settings. The Store function will assume the working memo ry name as th e default memo ry name, prom pting you to edit it if requir ed ( ...
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Telex DOC02-DN9848 - page 31
Using the DN9848 Memories 23 8. S TORING AND R ECALLING S ETTINGS The DN9848 Loudspeaker Processor is provi ded with the following memory facilities: 32 lockable System memories, designated as S01 to S 32, for storing standard set ups in battery-backed-up SRAM. 5 free access User memories, designated as U01 to U05, for storing a seri es of ...
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Telex DOC02-DN9848 - page 32
Using the DN9848 Memories 24 To recall stored se ttings from memory 1 Press the black RECALL button to access the Recall men u. 2 Select a User, System or Preset memory using the left, centre or right-hand knob. 3 Press RECALL to confirm the action and return to the DN9848 Home page. The selected memory settings are recalled to the worki ng mem ...
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Telex DOC02-DN9848 - page 33
Remote Control Setup 25 9. DN9848 R EMOTE C ONTROL S ETUP Up to 32 DN9848 Loudspeaker processors can be l inked together in a dai sy-chain RS-485 network for remote control from a computer running the commercially available Stardraw or Smaart software. Further details of these applications are avail able from the Klark Teknik website at www.klarkte ...
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Telex DOC02-DN9848 - page 34
Remote Control Setup 26 DN9848 Connection Laptop/PC Connection Cable /Converter Required D9 COM port Host cable RS-232 input to front panel PC PORT for short cable run USB port KK systems USB/232 converter plus host cable D9 COM port RS-232/485 converter, e.g. KT LBB-485 powered from PS2 mouse port Or KK systems K3-ADE plus power supply* RS-485 inp ...
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Telex DOC02-DN9848 - page 35
Application Notes 27 10. A PPLICATION N OTES 10.1. The Advantage of DN9848 Look-Ahead Limiters The limiter in a loudspeaker processor i s the last line of defence in protecting the speaker dri vers from damage, and as such it has a very specific and critical job to do. One of the chief modes of loudspe aker failure is drive r over- excursion, and u ...
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Telex DOC02-DN9848 - page 36
Application Notes 28 DN9848 is caused by the use of sigma-del ta converters for both analogue-to-digital and digital-to analogue conversion (the competitor unit uses a different method of digi tal-to-analogue conversion), which allows the DN9848 to achieve its superior dynami c range. In order to prevent driver failure, the competitor product’s l ...
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Telex DOC02-DN9848 - page 37
Application Notes 29 10.2. Phase-adjustment with the DN9848 To meet the demands of a wide range of situati o ns, the Klark Teknik DN9848 provides two all-pass filters with complementary control parameters for fine-tuning the phase response on each output. Although some cross-over filter designs, e.g. Li nkwitz-Riley types, are inherently phase-alig ...
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Telex DOC02-DN9848 - page 38
Application Notes 30 Au di o Pr eci s i on 01/ 19/ 01 16: 00: 02 1st or der a l l pa ss @ 300, 1K, 10K phas e. at 1 Col or Li ne S t y le T hic k Dat a A x i s Gr een Soli d 1 A nlr .P ha s e Lef t Y e llo w S ol id 1 A n lr.Pha s e R igh t Y e llo w S ol id 1 A n lr.Pha s e Le ft -15 0 +1 50 -10 0 -50 +0 +5 0 +1 00 d e g -15 0 +1 50 -10 0 -50 +0 + ...
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Telex DOC02-DN9848 - page 39
Technical Specification 31 11. T ECHNICAL S PECIFICATION Audio Inputs (four) Type Electro nically ba lanced ( Pin 2 Hot) Impedance ( Ω ) Bal anced 20k, Unbalanced 10k Common Mode Rejection >80dB @ 1kHz Maximum level + 21dBu Audio Outputs (eight) Type Electro nically Ba lanced ( Pin 2 Hot) Minimum load impedance 56 Ω /20nF Source impedance 56 ...
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Telex DOC02-DN9848 - page 40
Technical Specification 32 High pass filter Types available Butterworth (6dB/Oct, 12dB/Oc t, 18dB/Oct, 24dB/Oct, 36dB/Oct, 48dB/Oct) Linkwitz-Riley (12dB/Oct, 24dB/Oct) Bessel (12dB/Oct, 18dB/Oct, 24d B/Oct, 36dB/Oct, 48dB/Oct) 12dB/Oct Peaking 24dB/Oct Peaking Freq. Range: 20Hz to 15kHz in 21 steps/octave Peaking F ilter B oost: 0dB to +6dB in 0.1 ...
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Telex DOC02-DN9848 - page 41
Technical Specification 33 Factory Presets for X-Array S eries Out Memory Identification In 1 2 3 4 5 6 7 8 A L F H F B LF HF C LF HF P01 XW15 – 4MIX R1-3 4 x EV XW15 15” Bi-amped (8 outputs use d) D LF HF A Xn LF Xn MB Xn HF Xb LF Xf MB Xf HF Xf MF Xf HF B C P02 XN/XB/2XF R2- 1 x EV XN + EV XB + 2 x EV XF (8 outputs used ) D A Xcb LF Xcn MB Xc ...
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Telex DOC02-DN9848 - page 42
Technical Specification 34 Factory Presets for X-Array Install (Xi) S eries Out Memory Identification In 1 2 3 4 5 6 7 8 A LF HF B LF HF C LF HF P08 XI1122/85 4MIX R1-2 4 x EV XI1122/85 12” Bi- amped (8 outputs used) D LF HF A 1191 SUB 1122 LF 1122 HF FULL B 1191 SUB 1122 LF 1122 HF FULL C P09 XI1122/85 & 1191 R1-2 2 x EV XI1122/85 12” plus ...
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Telex DOC02-DN9848 - page 43
Technical Specification 35 Out Memory Identification In 1 2 3 4 5 6 7 8 A LF MB HF FULL B LF MB HF FULL C P18 XI2153/64 R1-2 2 x EV XI2153/64 15” Tri-amped (6 ouputs used) D A 1191 SUB 2153 LF 2153 MB 2153 HF B 1191 SUB 2153 LF 2153 MB 2153 HF C P19 XI2153/64 & 1191 R1-2 2 x EV XI2153/64 15” plus EV 1191 Sub Quad-amped (8 outputs used) D A ...
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