Alcons DDP Manuel utilisateur
Table of contents _______________
1. Introduction_____________________________________ 3
2. Important safety instructions ______________________ 6
3. Precautions _____________________________________ 7
4. Installation______________________________________ 8
5. Operation______________________________________ 10
6. The DDP Bootloader_____________________________ 28
7. Service and support _____________________________ 30
8. Specifications __________________________________ 32
9. Block diagram__________________________________ 33
Appendix A ______________________________________ 34
DDP User’s Manual rev.0
Firmware version V1.4 3
1. Introduction __________________
Dear customer,
Congratulations on your purchase of an Alcons Audio DDP Digital Drive
Processor, and thank you for your confidence in Alcons products. We are
very honoured to welcome you to the growing family of Alcons ambassadors!
For your safety, please read the Important safety instructions and the
Precautions section before installing and operating the module.
The DDP Digital Drive Processor is a professional digital loudspeaker drive
controller. The DDP is designed to guarantee the best loudspeaker drive,
with maximum sound- and operating reliability. The module contains a
powerful 120 MIPS DSP engine combined with state of the art AD and DA
converters to give you the ultimate in sound quality.
In order to maintain strict quality standards, all Alcons products are burned-in
and thoroughly tested before shipping. The proven combination of advanced
design, quality construction and active protection circuits is your guarantee of
fail-safe reliability and many years of trouble-free operation, while enjoying
the excellent specifications. You can depend on consistent, stable
performance, even in the most demanding fixed or mobile sound
reinforcement applications.
DDP features
24bit 96kHz Converters
State of the art AD and DA converters are used to obtain maximum sound
quality and dynamic range.
System preset settings for all available Alcons systems
The DDP provides system controlling and optimizing, with presets for all
available Alcons systems and system configurations. Simply select the
correct speaker and speaker configuration and all parameters are
DDP User’s Manual rev.0
Firmware version V1.4 4
1. Introduction __________________
set to give the best sonic performance; protection, dedicated filtering and
optimised system response.
The Intelligent Driver Guidance IDG™ processing offers optimized power
response through "True-RMS" intelligent power limiting guidance and
(separate) excursion limiting guidance.
Crossover filtering consists of dedicated, hybrid Bessel, Butterworth or
Linkwitz-Riley responses.
The optimization of the system’s response is taken care of by factory-set
dedicated driver alignment and system configuration equalising a.o.
Parametric Equaliser
Equalising can be done through 4-bands of parametric equalising per
channel; Each band provides +12 dB to -20 dB gain at frequencies ranging
from 20 Hz to 20 kHz, with 12 steps per octave. Each band can also act as
notch-filter. The filters feature CSQ™ (Constant & Symmetrical Q), with a
selectable Q from 0.3 to 15, in 38 steps.
Delay function
Per channel there is also a user-definable delay function; The delay can be
set from 0.1 to 293 milliseconds, or from 0.01 to 99.6 meters.
User presets
Up to 99 user-presets can be made, consisting of factory system preset,
gain, input-mode, equalising and delay. These presets can be tagged with a
21-character name which is shown at the top of the main menu.
DDP User’s Manual rev.0
Firmware version V1.4 5
1. Introduction __________________
Limit LogTM
The DDP provides real-time signal logging with a visual tracing report on the
dB limiting of the selected system. With up to 430.000 minute samples, a
usage history of more than 7.000 operating hours can be read out.
Furthermore the log stores the number of amp-starts, on time, signal present
time and limiting time of the amplifier.
Input matrix
Each amplifier channel can be routed to any amplifier input, or to both inputs
summed.
Lock function
All selectable functions of the DDP, except for the mute function, can be
locked with a 4 digit lock-code, or only a system preset lock can be applied.
Firmware updates
Firmware updates can be performed via the side-located USB port;
Dedicated boot-loader software makes the firmware updates internet-
downloadable.
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2. Important safety instructions ___
Warning: – To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Install in accordance with the manufacturer's instructions.
8. Only use attachments/accessories specified by the manufacturer.
9. Refer all servicing to qualified service personnel. 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.
The lightning flash with arrowhead symbol within a triangle, is intended to
alert the user to the presence of uninsulated dangerous voltage within the
enclosure that may be a risk of electric shock to humans.
The exclamation point within a triangle is intended to alert the user to the
presence of important operating instructions in the literature accompanying
the product.
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3. Precautions __________________
- Save the packing material. Should you ever need to ship the module, use
only the original packing.
- Read this manual carefully before installing and operating. Retain this
documentation for future reference.
- Do not use the module if there is visual damage to the enclosure.
Inspect the module before use. When in doubt, have the module inspected
by authorized technical personnel.
- Do not install the module to the amplifier while the amplifier is
switched on. Always shut off the amplifier when making connections to
it, and mute the inputs when making connections to preceding equipment
in the chain.
- Do not spill water or any other liquid to or into the module. Do not
operate the amplifier or module if suspected or standing in liquid.
- Do not remove the cover. There are no user serviceable parts inside the
module.
- Refer servicing to qualified service personnel. Servicing is required
when the module has been damaged in any way, liquid has been spilled
on or into the module, does not operate normally or has been dropped.
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4. Installation ___________________
Unpacking
Carefully open the shipping carton and inspect the DDP. Every Alcons
product is thoroughly tested and inspected before leaving the factory and
should arrive in perfect condition. If you find any damage, notify the shipping
company immediately. Only you, the consignee, may initiate a claim for
shipping damage. Be sure to save all packing materials for the carrier’s
inspection.
Please save the packing material. If you ever need to ship the DDP back to
your dealer or the factory, you should only use the original packing.
Installation in the ALC amplifiers
To install the DDP module in your Alcons ALC amplifier, first switch off the
amplifier and unscrew the cover on the front panel. Set the both the Parallel
mode and the Bridge mode switch to the left hand OFF position. If the ALC
is an –ST version turn both input gain controls completely clockwise to the
32 dB gain position. Place the DDP module in the space behind the cover,
making sure the connectors have
locked. Then secure the module
with the two supplied M3x6 bolts.
The DDP controls the signal
routing for parallel/active
mode and bridge mode
itself. This means that the
parallel mode and bridge
mode DIP-switches of the
ALC amplifiers should
always be in the left
hand OFF position.
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4. Installation ___________________
As can be seen in the block diagram in chapter 9, the signal present
indicators and the analogue level controls of the ALC amplifiers are prior to
the DDP in the signal chain and thus relate to the channel1 and channel2
input channels, rather than the channel1 and channel2 output channels of
the amplifier.
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5. Operation ____________________
Powering the amplifier
When the ALC amplifier is switched on, the DDP comes up with its boot
screen:
In the boot screen the Alcons logo, the device name and the current
firmware version are displayed.
After approximately 2.5 seconds the module automatically switches to the
main menu.
Pushing the DDP encoder while switching on the amplifier, makes the DDP
start-up with both channels muted.
Operating the encoder
The encoder is a multi-functional switch, which can be turned to select and
pushed to enter or exit a menu, or to confirm a setting. Turning the encoder
clockwise moves the cursor/selection down, turning counter-clockwise
moves the cursor/selection up.
Cursors
The filled cursor is displayed when the selected item can be accessed or
modified by pushing and/or turning the encoder.
The non-filled cursor is displayed when the selected item cannot be
accessed or modified by pushing and/or turning the encoder.
Table des matières
