Coda DNC260 User manual

Coda Audio
DNC260 Digital Loudspeaker Processor
User Guide version 0.1

Coda Audio DNC260
User Guide version 0.1 Page 2 of 0
Quick Reference Guide
Display
The LCD displays preset and parameter information. The default screen is shown after start
up and displays the number and name of the current preset on the lower line of text. When
navigating around the adjustable parameters, other information is shown.
Channel Select Buttons
The currently selected input or output channel is shown in the top left corner of the display.
Pressing the channel select buttons scrolls through the available inputs and outputs. If
operating stereo linked the channel pair is shown. For example ‘CH A+B’ means both input
A and B parameters.
Edit Select Buttons
The name of the edit parameter page is displayed in the bottom left portion of the LCD.
Pressing the edit select buttons moves through the available parameter pages for the
current input or output.
Parameter Knobs
Up to three parameters are shown on the display. The parameter name is shown with its’
current value below. Where appropriate, parameters are grouped according to function. For
example the parametric equalisation page shows centre frequency, width and gain. Turning
a parameter knob clockwise will increase the value of a parameter, turning anti-clockwise
will decrease it. Turning a knob rapidly will cause the action to ‘accelerate’, so the value
changes more rapidly.
Mute Buttons
The indicators next to the mute buttons indicate their current status. Pressing a mute
button toggles between the mute on and off.
Store Button
The unit has 45 preset locations. To store a preset in a location, press the store button and
use the parameter knobs to select the preset location and name the preset. Pressing the
store button again completes the task. Pressing any button other than store during the
process cancels the procedure.

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User Guide version 0.1 Page of 0
Recall Button
To recall a preset, press the recall button and use parameter knob A to select the required preset.
Pressing the recall button again will activate the preset. You will then be asked to confirm by pressing
recall once more. As with the store function, pressing any button other will cancel the process.

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Quick Reference Guide ................................................................................................................. 2
Display ..................................................................................................................... 2
Channel Select Buttons ......................................................................................... 2
Edit Select Buttons............................................................................................... 2
Parameter Knobs ................................................................................................. 2
Mute Buttons ...................................................................................................... 2
Store Button ....................................................................................................... 2
Recall Button .......................................................................................................
Important Safety Information ...................................................................................... 6
Regulatory Compliance ......................................................................................... 6
Thanks and Unpacking ............................................................................................... 7
Introduction and Key Features ....................................................................................................
Introduction ......................................................................................................... 8
The User Guide .......................................................................................................... 9
Front Panel ............................................................................................................. 10
Input Signal Indicators ....................................................................................... 10
Preset Store and Recall....................................................................................... 10
Channel Select Buttons ....................................................................................... 10
Edit Select Buttons............................................................................................. 11
Text Display ...................................................................................................... 11
Parameter Knobs ............................................................................................... 11
Output Signal / Limiter Indication ........................................................................ 11
Mute Buttons and Status LEDs ............................................................................. 11
Secure Button (on the rear) ................................................................................ 11
Rear Panel .............................................................................................................. 12
Power Inlet ....................................................................................................... 12
Network Expansion Port ...................................................................................... 12
Audio Input Connectors ...................................................................................... 12
Audio Output Connectors .................................................................................... 12
Communications Port Connector .......................................................................... 1
Operation ............................................................................................................... 14
Starting up ....................................................................................................... 14
Selecting a Factory Preset ................................................................................... 14
Creating a Crossover .......................................................................................... 14
Navigation and Viewing Parameters ..................................................................... 15
Navigation ........................................................................................................ 15
Presets ............................................................................................................. 16
Preset Recall ..................................................................................................... 16
Preset Store ...................................................................................................... 17
DSP Processing layout ............................................................................................................... 1
Input DSP block diagram .................................................................................... 18
Output DSP block diagram .................................................................................. 18
Stereo / Mono Formats ....................................................................................... 18
DSP processing.................................................................................................. 19
Input Channels .................................................................................................. 19
Output Channels ................................................................................................ 22
Utilities ................................................................................................................... 26
EQ and Filter Response Graphs ................................................................................................. 27
Technical Specification.............................................................................................. 0

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General ............................................................................................................ 0
Processing ........................................................................................................ 0
Connectors ....................................................................................................... 0

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mportant Safety nformation
Please read carefully and keep the following instructions and safety information. Heed all
warnings and follow all instructions.
•Do not remove covers. There are no user serviceable parts inside, please
refer servicing to qualified service personnel.
•This equipment must be earthed.
•Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
•Only use attachments/accessories specified by the manufacturer.
•Servicing is required when the apparatus has been damaged in any way, such as the
power supply cord or plug is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
Regulatory Compliance
This product complies with both the EMC Directive (89/ 6/EEC) and the Low Voltage
Directive (7 /2 /EEC) as issued by the Commission of the European Community.
Compliance with these directives imply conformity with the following European standards:
•EN60065 Product safety
•EN5510 -1 Electromagnetic Interference (Emission)
•EN5510 -2 Electromagnetic Susceptibility (Immunity)
This product is intended for operation in the E2 (commercial & light industrial) and E
(urban outdoors) Electromagnetic Environments.

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Thanks and Unpacking
Thank you for choosing a Coda Audio DNC260 loudspeaker management system for your
application. Please spare a little time to study the contents of this manual, so that you
obtain the best possible performance from this unit.
All Coda Audio products are carefully engineered for world-class performance and reliability.
If you would like further information about this or any other Coda Audio product, please
contact us. We look forward to helping you in the near future.
Unpacking the Coda Audio DNC260 processor
After unpacking the unit, please check carefully for damage. If damage is found, please
notify the carrier concerned at once. You, the consignee, must instigate any claim. Please
retain all packaging in case of future re-shipment.

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ntroduction and Key Features
ntroduction
The Coda Audio DNC260 loudspeaker management system represents the current state-of-
the-art. Taking advantages of the latest advances in analogue to digital conversion and
digital signal processing technologies the units achieve performance levels that have only
recently been made possible.
The Coda Audio DNC260 System Controller is a high performance, easy to use signal
processor containing presets for all Coda Audio loudspeaker systems. The DNC260 provides
generous amounts of signal processing capability and is complemented by a highly flexible
parameter arrangement ideally suited to touring and installation applications. The DNC260
may be controlled just as comprehensively from its front panel, or by using the PodWare
software application. PodWare can operate a single DNC260, or can optionally control a
multi-km network of products using the optional C-NET network.
Key Features
•Coda Audio minimal signal path design
•Sonically superb ADC / DAC combination; a carefully matched pairing of the best
devices from Burr Brown and Wolfson
•Newly released family of Analogue Devices SHARC DSP
•Extended bandwidth; 96kHz sampling frequency provides for a nominally flat
response to 40kHz.
•Parameter knob and LCD provide a rapid, user-friendly control interface

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The User Guide
This user manual gives a progressively more detailed description of the functions of the
Coda Audio DNC260 loudspeaker management system. A single page quick reference guide
is provided for those users who are experienced with this type of equipment and just need
to know how to ‘drive’ the front panel.
A detailed explanation of the front and rear panel controls and indicators is contained in the
next section. The final section describes each individual function or feature with annotated
images explaining its’ use. Where appropriate, the LCD is shown to further elaborate on the
units’ operation.
To complete the manual a reference section is included, describing the technical
performance of the device complete with graphs of filter responses and details of the
Factory Presets and their configuration.

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User Guide version 0.1 Page 10 of 0
Front Panel
nput Signal ndicators
A set of three pairs of LEDs indicate signal present, +4dBu and input clip for each channel.
The signal present LEDs operate at approximately –40 dBu, giving a useful indication of
even relatively low input signal levels. The +4 dBu LEDs are intended to show nominal
operating level and can also be useful for setting system gain structure. Clip LEDs warn the
user of input overload and operate at +19 dBu.
Preset Store and Recall
These controls provide access to the 45 presets stored within the device. Pressing the store
button allows the user to name a preset and choose which memory location it will be held
in. Pressing store button again completes the process. The Recall function operates in a
similar way, pressing the recall button allows the user to select which preset they require,
pressing the button for a second time, then confirming, recalls the new DSP settings.
Note that presets cannot be stored or recalled when Secure mode is activated.
Channel Select Buttons
The currently selected channel is displayed on the top left hand corner of the LCD. Pressing
the channel buttons scrolls through the available input and output channels and finally
through the utility functions and back to the default screen. If operating a stereo linked
preset, the channel name will indicate the channel pairing. For example ‘A+B’ means both
input A and B parameters. The name of the output will be shown briefly at the top of the
display when stepping onto an output.
Store and
Recall buttons Channel Select buttons 2 x 24 chracter LCD Limiter
Indicators
Input Signal
Indicators Edit Parameter
Select buttons Parameter
Edit Encoders Output Mute
buttons