Telex DOC02-DN9848, DN9848 Loudspeaker Processor Output Gain and Mute Front Panel Control

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Output Channels

1The 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 -1dBu down and so on.

The compressor threshold is also marked, relative to the limiter threshold, by a single steadily lit segment. For example, when the limiter threshold is set to 8dBu, the 0 segment is 8dBu; if the compressor threshold is –1dBu, segment 9 will be lit.

Note

If the limiter is set to OFF, the meter is scaled relative to 21dBu.

2While the signal level lies below the compressor threshold, the meter lights upwards from -40 such that the current headroom to both the compressor and limiter thresholds can be monitored.

3When the signal level reaches the compressor threshold level, the meter ‘flips’ and reads downwards to show the amount of gain reduction applied to the signal.

4With further increase, the meter reads in both directions: i.e., it increments upwards to track the signal level as it approaches the limiter threshold and increments downwards to show the applied gain reduction.

5When the limiter kicks in, the meter flips to read downwards from the 0 segment instead of just from the compressor threshold. It now shows the summed gain reduction from both compressor and limiter.

6.4. Output Gain and Mute - Front Panel Control

Each output is equipped with a dual action rotary/push-switch control for adjusting or muting the output level. Note that zero mark on the control refers to the baseline output level set in the Output menu (see Section 6.2.4) and hence the rotary control provides fine-tuning referred to this level.

To increase/decrease the level

turn clockwise/anti-clockwise

To mute an output

push in and hold until the red ring lights

To un-mute an output

push in and hold until the red ring light goes out.

To mute all outputs

push in and hold an unlit output until it and then all

 

other controls light

To un-mute all outputs

push in and hold a muted (lit) output until it and then

 

all other red rings go out

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Contents Page Page Important Safety Instructions Page Declaration of Conformity Page Contents Technical Specification After Unpacking Safety WarningInstallation Considerations Page DN9848 Key Features Introducing the DN9848Controls, Connectors, Indicators Front PanelRear Panel DN9848 Programming Panel Programming SettingsDN9848 Menu System Navigating the DN9848 MenusHome Set Up MenuStore and Recall DN9848 Menu Map Brief Technical Overview Setting Input ParametersInput Channels Input ChannelsTo adjust the gain Gain and DelayTo set the delay Parametric Equalisation Pages 2 toCompression Monitoring the Input SignalTo switch the compressor out of the circuit To set the compressor parametersOutput Channels Output ChannelsNaming the Output Channel Setting Output ParametersTo access the Output menu pages for a particular channel RoutingTo invert the output signal Signal Invert, Delay and Output LevelPhase Adjustment Pages 4 To set a precise phase shift at a reference frequencyTo add a high/low pass filter to output processing To apply a ‘shaped’ phase transition at a chosen frequencyHigh Pass and Low Pass Filters Pages 6 To bypass the high/low pass filter processingParametric Equalisation Pages 2 to Output Limiter Monitoring the Output SignalTo switch the limiter out of the circuit To set the limiter parametersOutput Gain and Mute Front Panel Control General Security and other Set Up OptionsSecurity Settings Pages 2 Remote Comms ChannelTo set a Panel Lock When System Protect is onSystem Protect To remove the Panel LockTo adjust the lighting To switch System Protect onTo switch System Protect off LCD LightingTo change the units of measurement Delay OptionsPower Up Options To store settings Using the DN9848 MemoriesStoring and Recalling Settings To lock the system memories, refer to .3 Security SettingsTo recall stored settings from memory Press the black Recall button to access the Recall menuRemote Control Setup DN9848 Remote Control SetupRS-485 input to rear panel To disable remote controlDN9848 Connection Laptop/PC Cable /Converter Required Application Notes Application NotesAdvantage of DN9848 Look-Ahead Limiters Application Notes Phase-adjustment with the DN9848 Audio Precision Deg phase shift @ 20, 300, 1K, 20K 01/19/01Audio 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 Factory Presets for X-Line Series Memory Out Identification 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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