Telex DN9848 Loudspeaker Processor Safety Warning, Installation Considerations, After Unpacking

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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. The unit contains a switch mode power supply that automatically adjusts itself to 50/60Hz mains supplies in the 100 V to 240 V (+/- 10%) AC range. This information is printed on the rear of the unit, below the mains inlet socket.

Before connecting this unit to the mains supply, ensure that the fuse fitted is the correct type and rating as indicated on the rear panel.

For safety reasons the mains earth lead should never be disconnected. In the event of ground loop problems, disconnect the signal screen at one end of the connecting cables – note that this can only be done when the unit is used within a balanced system.

 

Installation Considerations

Location:

Do not install this unit in a location subjected to excessive heat, dust or

 

mechanical vibration. Allow for adequate ventilation around the unit, making sure

 

the unit’s fans and vents are not obstructed. To prevent excessive heating of the

 

unit, avoid mounting the unit directly above power amplifiers or other devices

 

that radiate significant amounts of heat. Where necessary use fan cooled racks.

Cables:

To ensure correct and reliable performance, this product should only be used with

 

high quality, screened twisted pair audio cables, terminated with metal bodied 3-

 

pin XLR connectors (Pin 2 Hot).

Electric Fields:

Should this product be used in an electromagnetic field that is amplitude

 

modulated by an audio frequency signal (20Hz to 20kHz), the signal to noise ratio

 

may be degraded. Degradation of up to 60dB at a frequency corresponding to the

 

modulation signal may be experienced under extreme conditions (3V/m, 90%

 

modulation).

After Unpacking

Please retain the original packing for use should you need to transport or ship this unit.

Please inspect the unit carefully for any signs of damage that may have occurred in transit and notify the courier immediately if you feel that any damage has occurred.

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Contents Page Page Important Safety Instructions Page Declaration of Conformity Page Contents Technical Specification Safety Warning Installation ConsiderationsAfter Unpacking Page Introducing the DN9848 DN9848 Key FeaturesFront Panel Controls, Connectors, IndicatorsRear Panel DN9848 Menu System Programming SettingsDN9848 Programming Panel Navigating the DN9848 MenusSet Up Menu Store and RecallHome DN9848 Menu Map Input Channels Setting Input ParametersBrief Technical Overview Input ChannelsTo set the delay Gain and DelayTo adjust the gain Parametric Equalisation Pages 2 toTo switch the compressor out of the circuit Monitoring the Input SignalCompression To set the compressor parametersOutput Channels Output ChannelsTo access the Output menu pages for a particular channel Setting Output ParametersNaming the Output Channel RoutingPhase Adjustment Pages 4 Signal Invert, Delay and Output LevelTo invert the output signal To set a precise phase shift at a reference frequencyHigh Pass and Low Pass Filters Pages 6 To apply a ‘shaped’ phase transition at a chosen frequencyTo add a high/low pass filter to output processing To bypass the high/low pass filter processingParametric Equalisation Pages 2 to To switch the limiter out of the circuit Monitoring the Output SignalOutput Limiter To set the limiter parametersOutput Gain and Mute Front Panel Control Security Settings Pages 2 Security and other Set Up OptionsGeneral Remote Comms ChannelSystem Protect When System Protect is onTo set a Panel Lock To remove the Panel LockTo switch System Protect off To switch System Protect onTo adjust the lighting LCD LightingDelay Options Power Up OptionsTo change the units of measurement Storing and Recalling Settings Using the DN9848 MemoriesTo store settings To lock the system memories, refer to .3 Security SettingsPress the black Recall button to access the Recall menu To recall stored settings from memoryDN9848 Remote Control Setup Remote Control SetupTo disable remote control DN9848 Connection Laptop/PC Cable /Converter RequiredRS-485 input to rear panel Application Notes Advantage of DN9848 Look-Ahead LimitersApplication Notes Application Notes Audio Precision Deg phase shift @ 20, 300, 1K, 20K 01/19/01 Phase-adjustment with the DN9848Audio Precision 1st order allpass @ 300, 1K, 10K 01/19/01 Technical Specification Technical SpecificationPower Requirements Factory Presets for X-Array Series Memory Out Identification P08 XI1122/85 4MIX R1-2 Memory Out Identification Factory Presets for X-Line Series Memory Out Identification

DOC02-DN9848, DN9848 Loudspeaker Processor specifications

The Telex DOC02-DN9848, commonly referred to as the DN9848 Loudspeaker Processor, is an advanced audio processing device designed to enhance sound quality in both live and recorded environments. With a sleek and modern design, the DN9848 is engineered to meet the demanding needs of professional audio applications, be it in concert venues, theaters, or broadcast studios.

One of the key features of the DN9848 is its comprehensive processing capabilities. Equipped with a powerful DSP (digital signal processing) engine, it offers extensive equalization options, dynamic range control, and advanced crossover functionality. The device utilizes up to 48 input and output channels, allowing for unparalleled flexibility in routing audio signals. This makes it ideal for installations that require precise control over multiple loudspeakers.

The DN9848 also boasts an intuitive user interface, which facilitates straightforward navigation through its various functions. The front panel features a large LCD display that provides clear visibility of parameters, and a selection of knobs and buttons enables easy adjustments. For remote operation, the device can be controlled via Ethernet, allowing technicians to make changes from virtually any location.

Another standout aspect of the DN9848 is its customizable algorithms that accommodate different speaker systems and acoustical environments. Users can fine-tune the processor to optimize performance for specific venues or loudspeakers. The device supports both FIR (finite impulse response) and IIR (infinite impulse response) filters, providing users with the flexibility to deploy advanced filtering techniques according to their needs.

The DN9848’s robust connectivity options further enhance its utility. It features standard analog XLR connectors, as well as digital interfaces that include AES/EBU and Dante. This multi-format compatibility ensures seamless integration into existing audio setups, making it a versatile choice for audio professionals.

In terms of reliability and durability, the DN9848 is built to withstand the rigors of the professional audio world. Its rugged chassis and high-quality components ensure that it can perform consistently in various conditions, making it a trusted partner for sound engineers.

In summary, the Telex DOC02-DN9848 Loudspeaker Processor combines sophisticated audio processing capabilities with user-friendly features and robust connectivity. Its advanced technology and flexible options make it an indispensable tool for achieving optimal sound in a variety of professional audio environments.
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