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Speaker Management Processor
DSP 24
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USER’S MANUAL
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Safety Instructions
READ CAREFULLY THE FOLLOWING INSTRUCTIONS
POWER SUPPLY
Connect the appliance only on a current corresponding to the characteristics listed in the back of the device.
Failure to observe this precaution could result in fire or electric shock, or a failure not covered by the warranty.
POWER CORD
Before using the appliance for the first time, check that the supply voltage is consistent with that of the sector.
Before connection to the mains check that the power cord is properly plugged. Route the power cord so that it
cannot be squashed or bent and keep it away from moisture and significant heat sources. In case of
deterioration or failure please contact dealer to replace it with an identical cord. A damaged cord may result in
fire or electric shock.
PROTECTIVE GROUND
The appliance must be connected to the ground, don't remove the ground wiring of the power cord connector.
HUMIDITY
Do not expose the unit to rain or moisture and do not place container containing a liquid that might tip over. Do
not handle any connector with wet hands. In case of thunderstorm, turn the unit off and disconnect it from any
power outlet.
HEAT
Do not install the unit in a place subject to excessive heat or direct radiation from the Sun. Operating ambient
temperature must not be below 5 ° C (41 ° F) or above 35 ° C (95 ° F).
DAMAGE
Unplug immediately in the event of introduction of liquids or objects in the device as well as in the event of
damage to the power cable. Also unplug the unit if it emits smoke, an odor, or unusual noise. Then contact a
dealer or a Service Center authorized by Audiopole.
DISPOSAL
This symbol indicates the presence of a dangerous voltage.
This made symbol refers to information in the instructions manual.
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This symbol indicates that the disposal of this product is submitted to local regulations. Please
contact your local dealer.
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INDEX
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I- OPERATING MENU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
A- MODE SELECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
B- PARAMETERS EDITING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
1- INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
EQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
2- OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 2
Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3
Hi-pass Filter . . . . . . . . . . . . . . . . . . . . . . . . page 4
Low-pass Filter . . . . . . . . . . . . . . . . . . . . . . page 4
EQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 4
VU Meter . . . . . . . . . . . . . . . . . . . . . . . . . . page 4
C- PRESETS MANAGEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5
1- Presets save . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5
2- Presets recall . . . . . . . . . . . . . . . . . . . . . . . . . . . page 6
3- Presets delete . . . . . . . . . . . . . . . . . . . . . . . . . . page 6
D- LOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7
1- Simple lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7
2- Lock with password . . . . . . . . . . . . . . . . . . . . . . page 7
3- Display lock . . . . . . . . . . . . . . . . . . . . . . . . . . . page 8
II- APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
1- Digital input selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
2- Power-on status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
3- Unit for the delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
4- Real time modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9
5- Firmware version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
6- User interface selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
7- Reset procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
III- TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10
IV- BACK PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11
V- WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11
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I- OPERATING MENU
A- MODE SELECTION
The DSP24 has two factory pre-set modes: “1 x 2 Ways Xover’’ and “4 Ways Xover’’.
Press UTILITY and use NAV/PM1 button to display:
Press ENTER to display:
Use PM2 to select the menu, and then press ENTER two times to confirm.
REMARK:
• Mode “1 x 2 Ways” assigns the inputs to the outputs like below :
Input A to Outputs 1 (Low) / 2 (Hi), and Input B to Outputs 3 (Low) / 4 (Hi)
• Mode “4 Ways” assigns the Input A to all outputs. Input B is not used.
Routing and filters can be edited afterwards (see paragraph B - 2 below).
B- PARAMETERS EDITING
1- INPUTS:
The signal path for every input is as follow:
Press (quick push) the button 7 of the input, the blue Led lights.
NOTE: It is possible to adjust two inputs simultaneously: press the button 7 of one other input. The first one has priority on the
others.
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1- NAV/PM1 Browse & Parameter 1 adjustment
2- PM2 Parameter 2 adjustment
3- PM3 Parameter 3 adjustment
4- ENTER Menu selection or parameter setting
5- ESC Cancel function or Backward
6- UTILITY Utility menu selection
7- Quick push: selection for parameter Edit (blue Led)
Push > 2 sec: Mute/unMute (red Led = Mute)
UWER’S MANUAL DSP 24 page 1
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GAIN
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Press ENTER then adjust the value with PM2
It varies from -12dB to +6dB by 0.1dB steps.
NEXT PARAMETER: A- without gain modification: press NAV/PM1
B- after a gain modification: press ESC then press NAV/PM1
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DELAY :
Press ENTER then adjust the values with PM2 and PM3
It varies from 0m to 288.659m (848ms) by 7cm steps (0,02ms).
NEXT PARAMETER: A- without delay modification: press NAV/PM1
B- after a delay modification: press ESC then press NAV/PM1
The DSP 24 features 5 bands EQ on every input, named EQ-1 to EQ-5
EQ-1:
Press ENTER then adjust the parameters: (idem EQ-5)
• Variable frequency from 20Hz to 20,000Hz with NAV/PM1
• Variable bandwidth with Low Shelve -6 or -12dB, or 0.05 and 3.0 Octave with PM2
• Variable level between -15 and -15dB with PM3
MOVE TO EQ-2: A- without EQ-1 modification: press NAV/PM1
B- after EQ-1 modification: press ESC then press NAV/PM1
EQ-2 : Press ENTER then adjust the parameters: (idem EQ-3 & 4)
• Variable frequency from 20Hz to 20,000Hz with NAV/PM1
• Variable bandwidth between 0.05 and 3.0 Octave with PM2
• Variable level between -15 and -15dB with PM3
Same procedure for each band.
2- OUTPUTS:
The signal path for outputs is as follow:
Press (quick push) the button 7 of the selected output, the blue Led lights.
NOTE: It is possible to adjust several outputs simultaneously: in this case press the button 7 of one other outputs. The first one has
priority on the others.
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UWER’S MANUAL DSP 24 page 2
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OUTPUT NAME:
Press ENTER, the first letter blinks. Use PM2 to select the letter
Press ENTER to go to the next letter. Use PM2 to select the letter
Repeat to write the full name
GO TO THE NEXT PARAMETER: A- without having changed the name: press NAV/PM1
B- after the name change: press ESC and press NAV/PM1
SOURCE :
Press ENTER then adjust with PM2
The source can be input A, input B or both inputs summation.
GO TO THE NEXT PARAMETER: A- without having changed the source: press NAV/PM1
B- after the source change: press ESC and press NAV/PM1
GAIN:
Press ENTER then adjust with PM2
It varies from -12dBto +6dB with 0.1dB step
GO TO THE NEXT PARAMETER: A- without having changed the gain: press NAV/PM1
B- after the gain change: press ESC and press NAV/PM1
LIMITER:
Press ENTER then adjust the parameters:
• Attack time from 5 to 200ms with NAV/PM1
• Release time from 0.1 to 3s with PM2
• Threshold from -10 to +20dB with PM3
GO TO THE NEXT PARAMETER: A- without having changed the limiter: press NAV/PM1
B- after the limiter change: press ESC and press NAV/PM1
DELAY:
Press ENTER then adjust with PM2 and PM3
It varies from 0m to 288.659m (848ms) with 7cm (0.02ms) step
GO TO THE NEXT PARAMETER: A- without having changed the delay: press NAV/PM1
B- after the delay change: press ESC and press NAV/PM1
POLARITY:
Press ENTER then adjust with PM2
GO TO THE NEXT PARAMETER: A- without having changed the polarity: press NAV/PM1
B- after the polarity change: press ESC and press NAV/PM1
USER’S MANUAL DSP 24 page 3
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HI-PASS FILTER (HPF):
Press ENTER then adjust the parameters
Cut off frequency from 20Hz to 20kHz with PM2
Filter type with PM3
Available filters:
• Butterworth 6, 12, 18 or 24dB/Octave
• Bessel 12 or 24dB/Octave
• Linkwitz-Riley 12 or 24dB/Octave
GO TO THE NEXT PARAMETER: A- without having changed the HPF: press NAV/PM1
B- after the HPF change: press ESC and press NAV/PM1
LOW-PASS FILTER (LPF)
Press ENTER then adjust the parameters
Cut off frequency from 20 Hz to 20 kHz with PM2
Filter type with PM3
Available filters:
• Butterworth 6, 12, 18 or 24dB/Octave
• Bessel 12 or 24dB/Octave
• Linkwitz-Riley 12 or 24dB/Octave
GO TO THE NEXT PARAMETER: A- without having changed the LPF: press NAV/PM1
B- after the LPF change: press ESC and press NAV/PM1
The DSP 24 features a 7 band EQ on every output: EQ-1 to EQ-7.
EQ-1:
Press ENTER then adjust the parameters: (idem EQ-5)
! Variable frequency from 20Hz to 20,000Hz with NAV/PM1
! Variable bandwidth between 0.05 and 3.0 Octave with PM2
! Variable level between -15 and -15dB with PM3
MOVE TO EQ-2: A- without EQ-1 modification: press NAV/PM1
B- after EQ-1 modification: press ESC then press NAV/PM1
Same procedure for the others EQ.
MOVE TO OTHER EQ: A- without EQ modification: press NAV/PM1
B- after EQ modification: press ESC then press NAV/PM1
VU-METER :
Press ENTER then adjust with PM2
LEVEL: output level display
LIMITER ACT: Limiter action display
GO TO THE NEXT PARAMETER: A- without VU-Meter modification: press NAV/PM1
B- after VU-Meter modification: press ESC then press NAV/PM1
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USER’S MANUAL DSP 24 page 4
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C- PRESETS MANAGEMENT
1- PRESETS SAVE:
Press UTILITY and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 to display:
The DSP 24 features 24 user presets
Press ENTER: use PM2 or PM3, the display indicates “Empty Memory", for instance :
Press ENTER to valid the preset number, the display indicates:
To clear and overwrite an existing preset, press ENTER, then the display indicates:
Confirm by pressing ENTER and the display indicates:
Use NAV/PM1 to browse and PM2 and PM3 to select the letters, create the name (16 characters maximum). All the preset
parameters will be saved, including input and output Mute. To confirm press ENTER. The display indicates:
NOTE: At any time you can cancel the procedure by pressing ESC.
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USER’S MANUAL DSP 24 page 5
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2- PRESETS RECALL:
Press UTILITY and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 to display:
Press ENTER and browse the preset list with PM2 and PM3
NOTE: If there is no preset already saved, the display indicates «No Stored XOvers »
Confirm the preset choice by pressing ENTER, the display indicates:
NOTE: At any time you can cancel the procedure by pressing ESC.
3- PRESETS DELETE:
Press ENTER and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 to display:
Press ENTER and browse the preset list with PM2 and PM3.
Confirm by pressing ENTER, the display indicates:
Confirm the preset choice by pressing ENTER, the display indicates:
NOTE: Delete a Preset is irreversible.
USER’S MANUAL DSP 24 page 6
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D- LOCK
1- SIMPLE LOCK
Press UTILITY and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 pour to display:
Press ENTER, then press PM2, select « On » to lock, or « Off » to unlock the device.
The current status is indicated by the asterisk in
the right corner of the screen. Confirm with ENTER.
NOTES:
a. When the device is locked, none of the parameters can be modified.
If this procedure is known by the user, the parameters can be easily changed. In case of fixed installation or for renting
business the procedure could be not applicable: in this case see the procedure described in paragraph D2.
b. It is possible to have all the parameters invisible: see chapter D3.
2- LOCK WITH PASSWORD
This procedure has 3 steps:
a. Create a password
b. Confirm the password
c. Lock the device
a. CRERATE A PASSWORD
Press UTILITY and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 to display:
Press ENTER to display:
The factory password is « 000000 ».
Select the data with PM2 and PM3 and browse with NAV/PM1.
Press ENTER to display:
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New Password
[ ]
USER’S MANUAL DSP 24 page 7
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Select the data with PM2 and PM3 and browse with NAV/PM1. The password cannot exceed more than 6
characters. Press ENTER to display (example with «DPA240»):
Press ENTER to display:
NOTE: To unlock the devise the password is necessary. It is recommended not to forget it, and to memorize
it somewhere. In case this password is lost, it is necessary to make a total reset of the device. In this case all
settings and parameters will be lost forever.
b. CONFIRM THE PASSWORD
Press UTILITY and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 to display:
Press ENTER to display:
Press PM2, and select « Enable ». This option works only if the password is known.
c. UNLOCK THE DEVICE
Follow the instructions as described on Simple Lock.
It is possible to make all parameters invisibles: see paragraph 3.
At this stage the device is fully locked: none of the button is active, except UTILITY, which enables the password input.
In case the password is forgotten or lost, only a full reset of the device is possible. The reset is the factory status
when purchasing the device for the first time: all parameters and presets are lost forever.
3- DISPLAY UNLOCK
Whatever the choices, the parameters can be invisible.
Press UTILITY and use NAV/PM1 to display:
Press ENTER and use NAV/PM1 to display:
Press ENTER, then with PM2, select « Parameter will not be shown » for display locking, « Parameter will be shown » for display
unlocking. The current status is indicated with an asterisk on the right corner of the screen. Press ENTER.
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USER’S MANUAL DSP 24 page 8
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II- APPENDIX
1- DIGITAL INPUT SELECTION
The DPS 24 has a SP-DIF (RCA) digital input but it cannot operate with analog and digital inputs simultaneously. The input
format needs to be specified before any operation.
Selection of the digital input:
• Press UTILITY and use NAV/PM1 to display «System Utilities»
• Press ENTER and use NAV/PM1 to display «Input Routing». The current status is indicated with an asterisk on the
right corner of the screen.
• Press ENTER and use PM2 or PM3 to select «Digital».
• Press ENTER
2- POWER-ON STATUS
When the main power in switched on, the option “Fade-In: On” set the output level gradually up to the previous value of the
last switch off. If the option “Fader-In: Off” is selected, the output level is set to its nominal value instantaneously.
Selection of the Power-On status:
• Press UTILITY and use NAV/PM1 to display «System Utilities»
• Press ENTER and use NAV/PM1 to display «Power-On Procedure»
• Press ENTER and use PM2 or PM3 to select «Fade-In: On» or «Fade-In : Off». The current status is indicated with an
asterisk on the right corner of the screen.
• Press ENTER
3- UNIT FOR THE DELAY
The delay adjustment can be specified in Distance (meters) or in Time (milliseconds)
Selection of the unit:
• Press UTILITY and use NAV/PM1 to display «System Utilities»
• Press ENTER and use NAV/PM1 to display «Delay Units»
• Press ENTER and use PM2 or PM3 to select «Distance (m) » o «Time (ms) ». The current status is indicated with an
asterisk on the right corner of the screen.
• Press ENTER
4- REAL TIME MODIFICATIONS
When parameters are modified some artifacts may occur. The DSP24 can attenuate the level during the parameters
modification.
Selection of an automatic attenuation:
• Press UTILITY and use NAV/PM1 to display «System Utilities»
• Press ENTER and use NAV/PM1 to display «Ramps on Change»
• Press ENTER and use PM2 or PM3 to select «Ramps: On» for an automatic attenuation, or « Ramps: Off». The
current status is indicated with an asterisk on the right corner of the screen.
• Press ENTER
5- FIRMWARE VERSION
To know the Firmware version of the device:
• Press UTILITY and use NAV/PM1 to display «System Utilities»
• Press ENTER and use NAV/PM1 to display «Software Version».
• Press ENTER: the firmware version is displayed.
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Press ESC to escape this function display.
USER’S MANUAL DSP 24 page 9
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6- USER INTERFACE SELECTION
The DSP 24 can be programmed by a computer. There is an USB port (cable supplied) and a RS485 port (XLR). The USB
port enables the connection between one PC computer and one single DSP24.
The RS485 enables the communication between one PC computer and a network including several DSP24.
Selection of the interface:
• Press UTILITY and use NAV/PM1 to display «System Utilities»
• Press ENTER and use NAV/PM1 to display «Interface Setup»
• Press ENTER and use PM2 or PM3 to select «Source: USB» or «Source: RS485. The current status is indicated with
an asterisk on the right corner of the screen.
• Press ENTER
7- RESET PROCEDURE
If the DSP 24 has been locked with a password and the password is lost or forgotten the device cannot be unlocked with the
programmed parameters anymore.
The device needs to be reset to the factory parameters status. In this case all parameters and presets will be definitively
deleted and lost.
Reset of the device:
• Switch off the DSP 24.
• Press ENTER, ESC and UTILITY simultaneously by switching the power on.
• The display indicates :
• Release the button and wait for the end of the procedure.
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USER’S MANUAL DSP 24 page 10
III- TECHNICAL SPECIFICATIONS
Analog inputs: channel A, B, balanced XLR
Maximum input level: +20 dBu
Analog outputs: channel 1-4, balanced XLR
Maximum output level: +20 dBu
DSP: SAM3716, 24 bits
A/D converters: AKM5392, 24 bits
D/A converters: AKM4396, 24 bits
Sampling frequency: 48k Hz
Stereo digital input S-PDIF: compatible with 32 kHz, 44.1 kHz and 48 kHz sampling rate
S/N ratio: 110 dBA
THD + N: 0.005%
Frequency response (bypass): 20 Hz-20 kHz (+/-1dB)
Power supply: Switching
Interface: USB - RS485
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USER’S MANUAL DSP 24 page 11
22, rue Édouard Buffard, Z.A.C. de la Charbonnière, Montévrain - 77771 Marne-la-Vallée Cedex 4 - France
Tél : + 33 (0)1 60 54 32 00 - Fax : + 33 (0) 1 60 54 31 90 - www.audiopole-pa.com - www.audiopole.fr
OUTPUTS (*)
(*): Routing can be modified
B
(Low)
IV- BACK PANEL
MIX
(Analog outputs)
B A
DIGITAL INPUT
S-PDIF
A
(Low) A (Hi)
B
(Hi)
USB RS485
PC Interface
90-240V
50/60Hz
Cascade to
other
DSP24/26
V- WARRANTY
This appliance is warranted parts and labor against any manufacturing defects for a period of two years from the date of
purchase by the first user.
Conditions
1. The unit has been installed and implemented by observing the safety instructions in this operating manual.
2. The device was not diverted from its destination, either voluntary or accidental, and suffered no deterioration or
modification other than those described here or explicitly authorized by AUDIOPOLE.
3. All modifications or repairs have been carried out by an authorized service station.
4. The defective product must be returned with the dealer who made the sale or to an authorized service station
with proof of purchase.
5. The device was properly packaged to avoid damage in transport.
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