Telex DOC02-DN9848 - Manuals

ATTENTION! 1 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...

DN9848 Key Features 3 1. I NTRODUCING THE DN9848 The DN9848 is a highly configurable, digital electronic cross-over/loudspeaker management system comprising four balanced analogue input channels and eight balanced analogue output channels. Its unrivalled routing flexibility enables each output to be...

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 cabling. 3 Outputs 1-8 Electronically balanced XLR audio outp...

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 via function specific menu pages that are displayed and edited at the programming panel shown below. As described in the illustration, ea...

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 bands of parametric equalisation, and a full-band compressor. All key stages are monitored...

Input Channels 10 5.2.3 Gain and Delay (Page 1) Gain and delay are also set in the first page of the channel’s menu, providing easy access for quick adjustment during set up or performance. Note that the delay can be specified in terms of time or distance, as preferred. The unit of measurement is ch...

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, o...

Output Channels 12 6. O UTPUT C 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 channel is a routing block that can source ...

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 in menu order. To access the Output menu pages for a particular chan...

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. Th...

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 fr...

Output Channels 16 6.2.7 Parametric Equalisation (Pages 2 to 13) The DN9848 provides six parametric equalisation 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 c...

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 time (10ms to 2s in 10ms steps). To switch the...

Output Channels 18 1 The meter uses a downward relative scale where the 0 segment represents the limiter threshold. For example, if the limiter threshold is set to +5dB in the output menu page, then the signal meter 0 segment represents 5dBu true value, the –3 segment becomes 2dBu down, - 6 becomes ...

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 preferences, as follows: Comms channel setting for remote control Security features Display l...

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...

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 th...

Security and other Set Up Options 22 Names can also be allocated to individual 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 memory name as the default memory ...

Using the DN9848 Memories 23 8. S TORING AND R ECALLING S ETTINGS The DN9848 Loudspeaker Processor is provided with the following memory facilities: 32 lockable System memories, designated as S01 to S32, for storing standard set ups in battery-backed-up SRAM. 5 free access User memories, designated ...

Remote Control Setup 25 9. DN9848 R EMOTE C ONTROL S ETUP Up to 32 DN9848 Loudspeaker processors can be linked together in a daisy-chain RS-485 network for remote control from a computer running the commercially available Stardraw or Smaart software. Further details of these applications are availab...

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 ...

Application Notes 27 10. A PPLICATION N OTES 10.1. The Advantage of DN9848 Look-Ahead Limiters The limiter in a loudspeaker processor is the last line of defence in protecting the speaker drivers from damage, and as such it has a very specific and critical job to do. One of the chief modes of loudsp...

Application Notes 28 DN9848 is caused by the use of sigma-delta converters for both analogue-to-digital and digital-to analogue conversion (the competitor unit uses a different method of digital-to-analogue conversion), which allows the DN9848 to achieve its superior dynamic range. In order to preve...

Application Notes 29 10.2. Phase-adjustment with the DN9848 To meet the demands of a wide range of situations, 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. ...

Application Notes 30 A ud io P re c is io n 0 1 /1 9 /0 1 1 6 :0 0 :0 2 1 s t o rd e r allp as s @ 3 0 0 , 1 K , 1 0 K p h a s e .a t1 C o l o r L in e S tyle Th ic k D a ta Axis G re e n S o l id 1 An lr.P h a s e L e ft Ye llo w S o l id 1 An lr.P h a s e R ig h t Ye llo w S o l id 1 An lr.P h a s...

Technical Specification 31 11. T ECHNICAL S PECIFICATION Audio Inputs (four) Type Electronically balanced (Pin 2 Hot) Impedance ( Ω ) Balanced 20k, Unbalanced 10k Common Mode Rejection >80dB @ 1kHz Maximum level + 21dBu Audio Outputs (eight) Type Electronically Balanced (Pin 2 Hot) Minimum load i...

Technical Specification 33 Factory Presets for X-Array Series Out Memory Identification In 1 2 3 4 5 6 7 8 A LF HF B LF HF C LF HF P01 XW15 – 4MIX R1-3 4 x EV XW15 15” Bi-amped (8 outputs used) 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...

Technical Specification 34 Factory Presets for X-Array Install (Xi) Series 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/...