A SYSTEMS DMP808D User manual

User’s Manual
Manual del Usuario
Automatic Matrix Mixer
DMP808
DMP808D

2
English
DMP808 / DMP808D
V2.4 06/25/2018
IMPORTANT SAFETY INSTRUCTIONS...................................................................................... 1
INTRODUCTION.......................................................................................................................... 2
FEATURES................................................................................................................................... 2
GETTING STARTED .................................................................................................................... 2
GLOSSARY.................................................................................................................................. 3
CONTROLS & SETTINGS ........................................................................................................... 4
DIP SWITCH SETTINGS ............................................................................................................. 6
DANTE CONNECTIVITY (DMP808D ONLY) ............................................................................... 6
GENERAL SETTINGS ................................................................................................................. 7
HOW TO SET THE SYSTEM IP ADDRESS ................................................................................ 8
CONTROL SOFTWARE............................................................................................................... 9
SIGNAL PROCESSORS ............................................................................................................ 22
TROUBLESHOOTING ............................................................................................................... 23
SPECIFICATIONS...................................................................................................................... 24
PARAMETERS ........................................................................................................................... 25
Asystems reserves the right to alter any information contained within this
manual without prior notice.
CONTENTS

1English
DMP808 / DMP808D
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
1. Read these instructions – All the safety and
operating instructions should be read before this
product is operated.
2. Keep these instructions – The safety and
operating instructions should be retained for
future reference.
3. Heed all warnings – All warnings on the appliance
and in the operating instructions should be
adhered to.
4. Follow all instructions – All operating and use
instructions should be followed.
5. Do not use this apparatus near water – The
appliance should not be used near water or
moisture – for example, in a wet basement or
near a swimming pool, and the like.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in
accordance with the manufacture’s instructions.
8. Do not install near any heat sources such
as radiators, heat registers, stoves, or other
heat.
9. Do not defeat the safety purpose of the polarized
or grounding plug. A polarized plug has two
blades with one wider than the other. A grounding
plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for
your outlet, consult an electrician for replacement
of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at the plugs, convenience
receptacles, and at the point where they exit from
the apparatus.
11.
the manufacturer.
12. Use only with the cart, stand, tripod,
manufacturer, or sold with the
apparatus. When a cart or rack is
used, use caution when moving the
cart/apparatus combination to avoid
injury from tip-over.
13. Unplug the apparatus during lightning storms or
when unused for long periods of time.
14.
Servicing is required when the apparatus has
been damaged in any way, such as power supply
cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus has been
exposed to rain or moisture, does not operate
normally, or has been dropped.
15. CAUTION: These servicing instructions are
reduce the risk of electric shock, do not perform
any servicing other than that contained in the
do so.
16.
building-in space such as a book case or similar
unit, and remain a well ventilation conditions at
open site. The ventilation should not be impeded
by covering the ventilation openings with items
such as newspaper, table-cloths, curtains, etc.
17. WARNING: The mains plug/appliance coupler is
used as disconnect device, the disconnect device
shall remain readily operable.
18. This apparatus is for professional use only.
19. WARNING:
shock, do not expose this apparatus to rain or
moisture. The apparatus shall not be exposed to
liquids, such as vases, shall not be placed on
apparatus.
20.
an equilateral triangle is intended to alert
the user to the presence of non-insulated
“dangerous voltage” within the product’s
magnitude to constitute a risk of electric
shock.
Warning: To reduce the risk of electric shock, do
not remove cover (or back) as there are no user-
personnel.
The exclamation point within an equilateral
triangle is intended to alert the user to
the presence of important operating and
maintenance instructions in the literature
accompanying the appliance.
21. Protective earthing terminals. The
apparatus should be connected to a
mains socket outlet with a protective
earthing connection.
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
IMPORTANT SAFETY INSTRUCTIONS

2
English
DMP808 / DMP808D
INTRODUCTION
Congratulations on your purchase of a DMP808 Digital Matrix Processor and Automatic Mixer. The DMP808 provides a
simple, e󰀨ective way to maintain your audio levels in live venues without having to keep on your toes. A single DMP808
o󰀨ers twelve-in, eight-out support and the entire unit can be controlled remotely through standard potentiometers and
remote controls. Internal processing is accomplished through a high quality 40-bit oating point processor, with internal
signal processors and matrix routing all handled with ease.
Clear, easy-to-use software on your Windows computer makes control of your onboard processing simple. The software
o󰀨ers full performance monitoring for each processor, giving real-time information on the load placed upon DSPs.
We know how eager you are to get started – hooking up your new DMP808 is probably your rst priority right now – but
we would advise that you take the time to look over this manual. Inside you’ll nd important safety considerations and
operating instructions that could prove helpful. After reading the manual, we would suggest putting it somewhere easy to
nd as you will probably need to refer to it later on.
FEATURES
√ 8 input channels and 8 output channels available via 3-pin euroblock connections with 4 additional RCA inputs
√ 8 x 8 matrix mixing
√ 40-bit floating point processor with internal sampling rate selectable between 44.1 and 48 KHz
√ Ethernet connectivity for network control application
√ Automatic DHCP network IP configuration
√ Easy and intuitive control software from Asystems
√ 3 independent user-accounts
√ 4-band parametric EQs and 31-band graphic equalizers
√ Autoleveler (Loudness Control)
√ Compressors and noise gates
√ Level ducking with trigger control
√ All signal processors flexible and user-controllable
√ DMP808D includes the Dante multi-channel network expansion option

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DMP808 / DMP808D
GLOSSARY
The following are a few words that may serve you
well while reading this manual. These aren’t in depth
explanations, but should hopefully give you the basics
and a place to start.
Balanced Connections – balanced connections o󰀨er
three conductors, carrying a ground, an in-phase signal,
and an out-of-phase signal. Once the two signals are sent
from one device to another, the out-of-phase signal has
its phase inverted and the two signals are combined. Any
interference picked up along the way is removed through
to phase cancellation. This allows cables to be run over
long distances without collecting excessive noise on the
way.
Compressor – a Compressor reduces signals over a
user-dened threshold by a user-dened amount/ratio.
Dynamic Processor – is any kind of processor that
dynamically – or in real time – adjusts signal properties.
EQ – Equalizer – is a device or process that allows users
to boost or attenuate audio signals at specic frequencies.
Euroblock – These types of inputs allow for self-wiring
of connections for permanent installations. Check the
“Getting Started” section for more information on wiring.
GEQ – Graphic Equalizer – is in essence the same as
an equalizer, but this title is reserved for equalizers with
more ‘bands’ than the typical EQ. While a typical channel
EQ may only allow for 3 or 4 frequencies to be adjusted,
a graphic equalizer may allow for 31 di󰀨erent frequencies.
GUI – Graphical User Interface – this is the remote PC
software used for the DMP808.
HPF – High Pass Filter – a high pass lter will cut or
signicantly reduce all audio signals below a particular
user-dened frequency, allowing – as the name suggests
– high frequency sounds to pass through.
High Shelf Filter – the high shelf lter will reduce or
increase all audio signals below a particular frequency.
The level at which the signal is boosted/attenuated is
determined by the user.
Limiter – work just as compressors do; however with an
input to output signal ratio permanently set to innity-to-1.
LPF – Low Pass Filter – a low pass lter will cut all
audio signals above a particular user-dened frequency,
allowing low frequency sounds to pass through. This is
signicantly useful when using subwoofer speakers on
particular outputs.
Low Shelf Filter – the low shelf reduces or increases
the level of audio signals below a particular frequency
selected by the user. The level at which the signal is
altered is also set by the user.
Network – a network is a series or group of computers that
are interconnected so as to share information. In the case
of the DMP808, the network allows for remote operation
of the device using our Windows-based computer.
Noise Gate – a noise gate is a dynamic process that
turns o󰀨 or signicantly attenuates the audio signal
passing through it when the signal level falls below a user
adjustable threshold.
UnbalancedConnections– unlike balanced connections,
unbalanced connections only have 2 conductors: one for
the signal and one for the grounding. This, unfortunately,
makes them more susceptible to noise and interference.
GETTING STARTED
For easy control of the DMP808, you will need to connect the device to a network-enabled Windows computer. By
installing the Asystems software on a computer will allow for remote control of this unit. Enter the DMP808’s IP address
into the PC software to locate the DMP808 on either the local area network.
Connect all necessary input and output devices. Input can be achieved through correctly wired euroblock connectors.
Wiring for balanced euroblock connectors should be as follows:
Pin 1: Shield/Ground
Pin 2: Cold (–)
Pin 3: Hot (+)
Whereas unbalanced connectors can be wired as so:
Pin 1: Shield/Ground
Pin 2: Link to Pin 1
Pin 3: Hot (+)

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126 35
47
CONTROLS & SETTINGS
FRONT PANEL
1. Mounting Holes
These holes are for mounting the DMP808 on a standard
19” rack.
2. Power Switch
Flick this switch to sturn the unit on or put it on standy. Be
aware that the power switch can be disabled through the
Asystems DMP808 software.
3. Power LED
This LED indicator will illuminate when the DMP808
is activated – whether by switch or through the remote
software.
4. Disable LED
This LED will light up when the power switch is disabled.
When this occurs, the DMP808 cannot be turned on or
put on standby via the front panel switch. This function is
disabled within the Asystems PC software.
5. Output LEDs
The Mix Output LEDs will light up green when an output
signal is present on the corresponding output mix. It will
also ash red when the output channel clips. In this event,
you can reduce any excessive input signals, or turn down
your master output mix level through the control software.
6. Signal/Clip LED
This LED indicator is found on every input channel. When
a signal is present in the input channel, the LED will light
up green. When it clips, it will light up red. In the event that
the LED is red, we suggest reducing the input signal level.
Occasional ashes may be acceptable if it doesn’t a󰀨ect
your program material.
7. Gain Controls
These rotary controls will allow users to adjust the nal
input level for channels 1 through 8.

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DMP808 / DMP808D
10141516
11121718 1389
REAR PANEL
8. Ethernet Connection
This connection is for standard RJ-45 cables, used
for 10/100 Ethernet control. Using a CAT5 twisted pair
copper cable, Asystems doesn’t recommend a distance
of more than 100 meters to the nearest computer or hub.
The Ethernet connection is used to control the software
via the PC control software.
9. Peripheral Ethernet Connection
The Ethernet connection marked Peripheral is for
connecting Asystems remote peripherals. This will allow
for remote control of various internal functions.
10. Euroblock Line Inputs
The DMP808 o󰀨ers a total of eight line input channels
These inputs are active balanced with euroblock
connectors If an unbalanced signal is used, Asystems
advises that customers ground the unused conductor.
11. Euroblock Line Outputs
The DMP808 o󰀨ers a total of eight euroblock line outputs.
These are servo-balanced euroblock connectors and can
be wired to either balanced or unbalanced connections.
12. RCA Inputs
These unbalanced RCA connectors are for the
connection of stereo RCA cables. These act as inputs 9
to 12, as found in the “Ex In” pages within the DMP808
software.
13. Unit ID Controls & DIP Switch
The Unit ID controls consist of a single rotary switch
as well as 8-pin DIP switch. These essentially adjust
various controls and settings as well as assisting in
things such as rmware updates. More information on
Unit ID settings can be found in the relevant area of this
manual. These controls extend to IP address settings
and initialization.
14. 24VDC Input
This connector is used for emergency power to the
DMP808. This input connector can be used with a 24VDC
battery or power supply to ensure operation continues in
the event of power outage.
15. GPIO IN
These euroblock connectors can be wired to connect the
Asystems RM-4 for remote control.
16. GPIO OUT
When connected, it provides 0V or 5V of power for
external controller to turn the unit on or put it on standby.
17. Digital I/O Expansion Slot
This slot is for the addition of the I/O networking
expansion card for extending the channel count of the
DMP808. The DMP808 can act as a networking portal to
our other audio networking devices, including the DMA
digital matrix ampliers.
18. AC Power Connector
This is for a standard IEC power cable.

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English
DMP808 / DMP808D
PIN FUNCTION POSITION DESCRIPTION
1 Firmware Upgrade ON Firmware Upgrade Mode
OFF Operation Mode
2 IP address setting method ON By Hardware
OFF By Software
3 Leading digit of host digit of IP address ON
Please consult “How to Set Unit IP”
section of this manual.
OFF
4 Second digit of host digit of IP address ON
OFF
6Enable/Disable Panel VR ON Panel VR Enabled
OFF Panel VR Disabled
7 Resume factory default settings ON Resume factory default settings
OFF Operation Mode
DMP808 DIP SWITCH SETTINGS
upper position: ON
Iower position: OFF
The Dante expansion card should come pre-installed with
the DMP808D (and is not included with the DMP808).
This is an optional component that is not included on all
versions of the DMP808.
The “Primary” port on the Dante card can be connected to
your network router. The Secondary port can be connected
to the Primary port of additional units. Alternatively, all
units can be connected to the router using their “Primary”
ports.
The Audinate Dante Controller can be downloaded
through their website (www.audinate.com). This is used to
route the network signals from numerous Dante-enabled
devices. Each device will show up as its own independent
signal with input and output channels listed. All units will
be automatically discovered by the software.
Signals can be routed internally using the instructions
found in section 5. The actual network input signals
received by your DMP808s are determined by the
aforementioned Dante Controller software. It should be
noted that each Network input mix can only have a single
source assigned to it.
Connecting additional units to your network will
automatically be recognized by the software, allowing any
of these systems to have their signals routed throughout
the network.
In addition to the regular network routing of signals, the
Dante expansion cards are compatible with Audinate’s
DANTE CONNECTIVITY (DMP808D ONLY)
Virtual Soundcard software which allows for recording
of audio to the computer and playback of audio from the
computer. At the time of publication, this a permanent
license for this software is available for $29.99. The
controller software is completely free on Windows 7 (SP1),
Windows 8.1, Windows 10, OSX 10.10.5 (Yosemite), OSX
10.11.6 (El Capitan) and macOS 10.12 (Sierra).
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9

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DMP808 / DMP808D
RESTORE FACTORY SETTINGS
1. Unplug the DMP808’s power cable.
2. Switch POLE 7 on the rear panel DIP Switches to the
ON position.
3. Replace the power cable and power on the DMP808.
Wait for the start up procedure to complete.
4. Switch POLE 7 to OFF.
5. Now your DMP808 is restored to the factory default
settings.
NOTE: A factory restore is particularly helpful in the event that
user names and passwords are forgotten. Restoring to factory
default settings will restore user names back to default values.
ACTIVATING VR CONTROLS
Use pole 6 on the rear panel DIP switch to turn the front
panel controls on and o󰀨. When OFF, the rotary volume
controls on the front of the DMP808 will be deactivated.
In the event that controls are not functioning, be sure to
check this before taking further action.
In addition to this switch, each and every individual
control can be deactivated within the software. Within
the Control Panel page, the ON/OFF buttons at the very
bottom of each channel will allow you to turn the front
panel rotary controls on and o󰀨.
GENERAL SETTINGS
FIRMWARE UPDATE
When performing a rmware update, a few steps need to
be followed. First of all, set the rst pole of the DIP switch
to the upper-most position.
A connection needs to be established between the
DMP808 system and the Windows remote software.
After this is done, enter the Global Settings tab and the
Utility menu. At the very bottom of the page, click the
“Update” button under the Firmware section. Users will
be prompted to select the rmware le (available on the
Asystems website) and the rmware update process will
begin.

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English
DMP808 / DMP808D
HOW TO SET THE SYSTEM IP ADDRESS
Connecting the DMP808 to a computer for remote operation requires the user to enter an IP address for the unit. There are
two controls that help determined the IP address of the DMP808 matrix processor. The rst is the UNIT ID rotary control, that
lets you select 0 – 9 and A – F. The second is the DIP switch located directly beside the rotary switch. The 3rd and 4th poles
of the DIP switch can be used to set a numerical value between 0 and 3. These combine with the UNIT ID rotary switch to
form a hexadecimal value for the last value of the IP address (as indicated below).
The congurable range for the last digit is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F.
The unit ID conguration mechanism of DMP808 is developed based on “hexadecimal numeral system”. Therefore, a
scientic calculator may be required when setting the unit ID of the IP address for DMP808. Below is the procedure for
setting the unit ID:
1. Dene the IP address for your DMP808.
2. Convert the decimal value of the host bits of the IP address to a Hexadecimal value (consult the provided table).
3. Set PINS 3 and 4 on the 8-PIN DIP switch according to the rst digit of the converted Hexadecimal value.
4. Set the rotary switch according to the second digit of the converted Hexadecimal value.
Example: To set an IP address of “192.168.0.21” on your DMP808, the rotary control should be set to 5 and the DIP
switches 3 and 4 should be set to ON and OFF, respectively. This sets a hexadecimal value of 15, which - converted to
decimal - is 21. Consult the included chart for hexadecimal to decimal conversion.
Value The 3rd PIN The 4th PIN
0OFF OFF
1ON OFF
2OFF ON
3ON ON
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
IP address: 192.168. 0.Xx
Upper Position: ON
Lower Position: OFF
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9

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DMP808 / DMP808D
HEX DEC HEX DEC HEX DEC HEX DEC HEX DEC
01 1 0E 14 1B 27 28 40 35 53
02 2 0F 15 1C 28 29 41 36 54
03 3 10 16 1D 29 3A 42 37 55
04 4 11 17 1E 30 2B 43 38 56
05 5 12 18 1F 31 2C 44 39 57
06 6 13 19 20 32 2D 45 3A 58
07 7 14 20 21 33 2E 46 3B 59
08 8 15 21 22 34 2F 47 3C 60
09 9 16 22 23 35 30 48 3D 61
0A 10 17 23 24 36 31 49 3E 62
0B 11 18 24 25 37 32 50 3F 63
0C 12 19 25 26 38 33 51
0D 13 1A 26 27 39 34 52
Hexadecimal to Decimal Conversion
DMP808 CONTROL SOFTWAREE
CONNECTION
After a connection is established, you can use the control software to remotely control and change the settings of your
DMP808. To begin, please visit the Asystems website to download the control software program. The program will be
downloaded to a zipped folder. Please unzip the folder then follow the instructions to proceed the installation.
1. Turn on your DMP808.
2. Connect your computer to the DMP808 using any commercially available CAT5 RJ-45 Ethernet cable.
3. On the rear panel, set PIN 2 of the DIP switch to ON.
4. Set PIN 3 and 4 of the DIP switch to OFF.
5. Set the UNIT ID rotary to 1. This will set the DMP808’s internal IP address to 192.168.0.1.
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9

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English
DMP808 / DMP808D
6. Go to the “Open Network and Sharing Center” of your computer.
7. Click on “Connections”.
8. Select
9. Select “Internet Protocol Version 4 (TCP/IPv4)” and
click on

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DMP808 / DMP808D
10. Please make a note of the current settings for future reference.
11. Change the IP Address to “192.168.0.3” (or any other compatible
IP address) and click “OK”.
12. Select the executable le (.exe) inside the DMP808 Control Software folder.
13. On login page, enter the following information.
IP Address: 192.168.0.1
User Name: USER_1
Password: ASYSTEMS
NOTE: In the event that you forget the user name and/or
password that you had previously set, please enter the following
information to retrieve them.
User Name: Admin
Password: ASYSTEMS
14. Click to begin the installation.

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DMP808 / DMP808D
If your DMP808 and your computer are connected through an existing local area network and not a set IP address,
please follow the steps below to establish a connection.
3. Select at the login screen to search the current
IP address.
2. Select the executable le (.exe) inside the DMP808
Control Software folder.
1. Make sure that your DMP808 and computer have
successfully connected to the local area network.
4. All the existing IP addresses will appear in the “Device
IP” drop-down box.
7. Click to begin the installation.
5. Select the IP address that will be used for DMP808.
6. Enter the following information on the login page.
User Name: USER_1
Password: ASYSTEMS
DSP
The DSP page will give you an overall idea of input and
output mixes (including levels and naming) as well as o󰀨er
a manner to view and edit the current signal processors
assigned to input and output channels.
Name: Edit the name for each of the individual input
channels.
On/O󰀨: Use this button to switch the corresponding input
channel on and o󰀨.
Processing: These buttons allow you to inject any of the
DMP808’s internal signal processors right into the input
chain. Processing will be accomplished in order from left
to right. For more information on the available programs,
check the Signal Processor section of this manual
Reset Button: Pushing these buttons will reset the DSP
parameters for the input or output, including name, on/o󰀨
status, and selected signal processors. There is a reset button available for each the input and output.
Monitoring: The DMP808 software o󰀨ers extensive monitoring for DSP performance. The percentage of the processor
used will be visible at the bottom of the page.

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DMP808 / DMP808D
Channel In Matrix
This page o󰀨ers matrix mixing for the Analog inputs to
the Channel Input mixes. Any of the input sources can be
assigned to the individual “Channel Input” mixes.
Each of the possible input matrix sources can have a
number of controls available. These include:
Attenuation/Fader: Adjust the input level of each of the
individual signals.
Panning: These will let you adjust the left/right mix of the
incoming signals.
ALC: This button will assign the DMP808’s Auto Level
Control to the corresponding input signal.
Duck: Pushing this button will apply the ducking feature
to the corresponding input signals. The duck function can
be activated as ducker 1, ducker 2, or o󰀨, the settings of
which are decided by their respective menus.
INV: This button will invert the phase of the corresponding
signal.
On: This button allows you to turn the corresponding input signal on and o󰀨. When turned o󰀨, the signal will not be sent
to the Input Channels selected.
Routing: Each of the 12 analog inputs can be assigned to the DMP808’s 8 matrix channels. These input channels are
what will be used for the DSP processing and will be then routed to your output mix.
Mix Matrix
Each of the 8 Mix Ins and the 8 Mix Outs can be tweaked
before being sent to the main outputs.
Attenuation/Fader: Adjust the input level of each of the
individual input signals or matrix mixes.
Auto Mixer: This button on each channel will activate
automixing on the corresponding channel. When
deactivated, the channel is set to manual mode and will
work independently to the automixer function. When set
to Auto, ‘auto’ channels will compensate for changes in
levels to adhere to the selected ‘target level’ (see “SEL”).
Auto Mixer Response Time: The time to automixer takes
to activate can be selected using the pull-down menu to
the left of the ‘Auto’ buttons.
SEL: The select button on each Mix Out will allow the
user to use the selected channel’s output level as the
target level for the automixer function.
INV: This button will invert the phase of the corresponding input or matrix signal.
On: This button allows you to turn the corresponding input / output signal on and o󰀨. When an input is turned o󰀨, the
signal will not be sent to any of the matrix outputs selected. Turning o󰀨 a Mix Out will e󰀨ectively disable that output.
Routing: Each of the analog inputs and matrix inputs can be assigned to the DMP808’s output mix.
Clear: The ‘CLEAR’ button to the left of the routing section will allow users to instantly clear all routing selections.
Link: The ‘LINK’ pull-down menu allows users to assign the corresponding channel to a particular group. Linking two or
more mixes in a single group will link the automixer parameters of those particular mixes.

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Signal Generator
The Channel Inputs and Matrix Output can have a signal
generator applied to them. The option can be found in the
Channel Matrix and Mix Matrix pages by right clicking the
mouse. The signal generator can be activated with the
“ON” buttons and assigned to the appropriate mixes using
the matrix/channel select section below the controls.
There are 4 di󰀨erent signals available, including White
Noise and Pink Noise – ideal for setup of systems – and
sine and sweep waves – for testing of equipment and for
general setup purposes.
Sine: The sine wave can be selected between 20 Hz and
20 kHz. The signal level can also be adjusted, and the
signal can be turned on and o󰀨.
Sweep: When using the sweep wave, a lowest and
highest frequency can be selected. The sweep wave will
move between these frequencies and small increments.
The hold time for each frequency can be selected by the
users. There are also controls for adjusting the signal level and turning the sweep wave on and o󰀨.
Pink Noise: The pink noise function includes level controls and on/o󰀨 button.
White Noise: Like the pink noise, the white noise only o󰀨ers level controls and an on/o󰀨 button.
Network Matrix
Any of the incoming input signals can be assigned directly
to the Network output mixes. The network matrix pages
are only used when the Asystems network expansion card
is installed in the DMP808. Attenuation: Adjust the input
level of each of the individual input and output mixes.
Panning: These will let you adjust the left/right mix of the
available mixes.
ALC: This button will assign the DMP808’s Auto Level
Control to the corresponding input.
Duck: Pushing this button will apply the ducking feature to
the corresponding mix. The duck function can be activated
as ducker 1, ducker 2, or o󰀨, the settings of which are
decided by their respective menus.
INV: This button will invert the phase of the corresponding
input or matrix signal.
On: This button allows you to turn the corresponding input
signal on and o󰀨. When turned o󰀨, the signal will not be
sent to any of the matrix outputs selected.
Routing: Each of the 12 analog inputs, 8 matrix inputs and 8 matrix outputs can be assigned to the DMP808’s 8 network
outputs. These channels will appear as Network Input connections in any networked Asystems DMP, DMA or NT series
devices.

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DMP808 / DMP808D
Control Panel
The control panel menu o󰀨ers complete control of output
channels. This menu includes level, gain controls,
metering, and a host of other parameters that can be
edited.
Channel Name: A preselected channel name can be
viewed or edited in this screen.
Fader: The input level can be adjusted using this
onscreen fader.
Meters: The input and output signal level of the channel
can be viewed through these meters. They can be
adjusted between pre- and post-fader meters.
Gain Reduction: The gain reduction meter will provide
a real-time indication of any reduction in gain applied by
the internal DSP processes of the DMP808 (including
compressors-limiters, equalizers, etcetera).
Limiter: This button will activate the internal limiter
function for the corresponding channel.
Duck: Activate the ‘ducking’ feature by pushing this button. The duck function can be activated as ducker 1, ducker 2, or
o󰀨, the settings of which are decided by their respective menus.
INV: This button will invert the phase of the corresponding signal.
CH ON: This button will turn the corresponding channel on and o󰀨.
Network
When using the DMP808 remote software – either within
the local area network or through the internet – the
network settings need to be set appropriately to allow
external computers to identify and connect to it.
The IP address of DMP808 can be set via the system
hardware (rear panel) or the software (remote control
software).
Set via System Hardware
When the IP address is set via the hardware, the on
screen display will show the following:
Device Name: The name of the current device is found
here, and it can be adjusted by the user, if necessary.
IP Address: The actual IP address of DMP808 will
automatically be detected and shown here. User can
manually adjust the IP address through the rear panel.
Set via Software
Device Name: The name of the current device is found
here, and it can be adjusted by the user, if necessary.
IP Address: The actual IP address of DMP808 will
automatically be detected and shown here. User can
manually adjust the IP address through the rear panel.。

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DMP808 / DMP808D
Security
This tab can be found under the Network Settings
menu. The security tab provides a means of securing
the DMP808 against unauthorized changes. Through
the DMP808’s onboard software these accounts can be
created for use of the Asystems remote software.
Global Settings
Analog In
Each of the analog inputs can have +48V of phantom
power applied to it, ideal for condenser microphones.
This menu also allows the user to trim the signal slightly
if levels are too excessive. A high-pass lter can also be
added to each of the analog inputs to help remove stage
rumble and other unwanted noise.
Global In On/O󰀨
This menu provides buttons for each individual input,
including analog input, network input, EX IN input and
signal generator.

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DMP808 / DMP808D
Ducker
The ducker allows a signal to temporarily attenuate below
another signal when said signal activates the ducking
feature. This is useful when making announcements
and other such times when a signal needs to be heard
clearly. The ducker can be activated on input and output
channels by pushing the ‘Duck’ buttons found in the
individual Matrix control pages. There are two of these
‘duckers’ total on the DMP808.
Source: This is used to select the source of the duck
function; ie. the trigger signal. When the selected source’s
signal rises to a user-selected level, the currently selected
‘duck’ signals will attenuate at the selected level.
Threshold: This determines the level that the source
signal needs to be before the ducking function will be
activated.
Depth: This determines how much the selected ‘duck’ signals will be attenuated.
Attack: The attack time is the time it takes for the ducking feature to kick in after the source signal passes the selected
threshold.
Release: The release time control will determine the time the ‘duck’ feature will remain active as the source signal drops
back below the set threshold.
ALC – Auto Level Control
An autoleveler will allow users to dynamically change the
level of an input or output signal to match a predened
level set by the user. The autolevel function can be
activated for each individual mix in the matrix pages. The
settings for these autolevelers can be found within this
ALC menu.
In Target: The target level setting allows users to select
the desired signal level for their autoleveler. All signals
that are processed by the autoleveler will essentially aim
for the target level.
Below Target: The below target threshold of the
autoleveler is the point at which the autoleveler will kick
in. Signals below the threshold will not be a󰀨ected, but
signals above will be have their gain increased.
Ratio: The ratio is the input level change in decibels to
the output level change in decibels.
Increase Gain: The increase gain determines the amount that the signal can be increased to meet the target level. This
helps prevent sudden, alarming changes in audio level.
Decrease Gain: The decrease gain works the same as the decrease gain, but in reverse. It determines the amount a
signal can be cut.
Hold Time: This determines the time the ALC will remain engaged after the signal falls back below the determined
threshold.

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Compressor/Limiter
This menu allows compressors and limiters to be applied
to the channel output
Limiter Threshold: This control determines the threshold
for the limiter function. This means that no signal will
surpass the selected threshold, being ‘compressed’ at a
ratio of innity:1.
Compressor Threshold: Use this control to set the
threshold of the compressor function. Any signals that
surpass the selected threshold will be compressed at the
selected ratio.
Compressor Ratio: This control can be used to set
the ratio for the compressor. The ratio is expressed as
<input>:<output>.
Compressor Attack: This control adjusts the attack time
of the compressor, essentially determining the time taken
for the compressor to kick in after it passes the selected
threshold.
Compressor Release: The release control determines the time the DMP808 will wait before disengaging the compressor
when the signal bypasses the selected threshold.
Side Chain HPF: This allows users to set a high pass lter on these channels to essentially help rid these channels of
low-frequency noise.
System
System Clock: This menu allows you to select the
internal sampling rate of the DMP808. Users are able
to select between either 44.1 or 48 kHz. You can also
choose to take clock settings from the audio networing
feature. The ENTER button must be pushed to conrm.
Power Settings: There are three power settings on the
DMP808. The software power can be turned on and o󰀨,
essentially enabling the DMP808 to be turned on and
o󰀨 via the software – including event scheduling. The
hardware power can be selected on and o󰀨, essentially
allow the unit to be activated and deactivated using the
hardwired switch on the front of the DMP808.
Relay I/O (GPIO)
The general purpose interface output is used to remotely
control the DMP808. When properly setup, you can turn
the power on or put the system in standby mode.