Security and other Set Up Options

To switch System Protect on

1Step through the Set Up menu to the System Protect menu page.

2Use 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 recorded as part of the 12-character password; therefore if you use a short password, the characters must be re- entered in exactly the same position to unlock the panel. To avoid confusion, either record the blanks as part of the password or enter the word at the far left of the display.

3Turn the right-hand knob (‘on>’) clockwise to accept the password and switch protection on.

4Press HOME to apply the System Protect state.

The Home page now indicates the unit is locked with inputs editable. The System Protect state is retained after power down, as will be shown on the Home page when the unit is powered up again.

To switch System Protect off

1Step through the Set Up menu to the System Protect page.

2Use the left and centre knobs to enter the password. Note that the letters must be in the same position as when the password was set.

3Turn the right-hand knob clockwise to apply the password.

4If you have entered the wrong password, the DN9848 will flag it as incorrect and return to the Panel Unlock page for a further attempt.

If accepted, the password cursor stops flashing. When you next access this menu page, System Protect will be in the default Off state.

7.4. LCD Lighting (Page 4)

If required, the lighting of the alphanumeric display can be adjusted to accommodate off-axis viewing.

To adjust the lighting

Step to the LCD page, and turn the left knob to adjust the display contrast. The default setting is 5, with a range of 0-10.

7.5.Naming (Pages 5 and 6)

To help with system identification, the DN9848 unit and the current working memory may each be given a name up to 24 characters long.

Both names are shown in the Home page and are retained after power down, which is particularly useful for system reassembly when changing venues.

To enter a name

Use the left-hand knob to move the cursor right or left, and the centre knob to select the letter, number or symbol. The name is automatically applied.

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Telex DN9848 Loudspeaker Processor LCD Lighting, Naming Pages 5, To switch System Protect on, To switch System Protect off
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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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