A SYSTEMS DMA8825 Bedienungsanleitung

User’s Manual
Manual del Usuario
Digital Matrix Amplifiers
DMA8825
DMA8813
DMA8425
DMA8413

2
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
INTRODUCTION�������������������������������������������������������������������������������������������������������������������������� 2
FEATURES����������������������������������������������������������������������������������������������������������������������������������� 2
CONTROLS AND I/O ������������������������������������������������������������������������������������������������������������������� 3
FRONT PANEL�������������������������������������������������������������������������������������������������������������������������� 3
REAR PANEL���������������������������������������������������������������������������������������������������������������������������� 4
INSTALLATION AND SETUP ������������������������������������������������������������������������������������������������������� 5
RACK MOUNTING�������������������������������������������������������������������������������������������������������������������� 5
CONNECTION �������������������������������������������������������������������������������������������������������������������������� 5
DIGITAL I/O EXPANSION CARD ���������������������������������������������������������������������������������������������� 6
STAND-ALONE CONTROL������������������������������������������������������������������������������������������������������� 7
REMOTE CONTROL����������������������������������������������������������������������������������������������������������������� 7
CONTROL SOFTWARE������������������������������������������������������������������������������������������������������������� 10
SPECIFICATIONS���������������������������������������������������������������������������������������������������������������������� 17
PARAMETERS��������������������������������������������������������������������������������������������������������������������������� 18
Asystems reserves the right to alter any information
contained within this manual without prior notice�
V1�3 06/20/2016
TABLE OF CONTENTS

1. Read these instructions before operating this
apparatus.
2. Keep these instructions for future reference.
3. Heed all warnings to ensure safe operation.
4. Follow all instructions provided in this document.
5. Do not use this apparatus near water or in locations
where condensation may occur.
6. Clean only with dry cloth. Do not use aerosol or liquid
cleaners. Unplug this apparatus before cleaning.
7. Do not block any of the ventilation openings. Install
in accordance with the manufacturer
’
s instructions.
8. Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
.
9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The wide
blade or the third prong is provided for your safety. If
the provided plug does not into your outlet, consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at plug, convenience receptacles,
and the point where they exit from the apparatus.
11. Only use attachments/accessories by the
manufacturer.
12. Use only with a cart, stand, tripod, bracket, or
table by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus
combination to avoid injury from tip-
over.
13. Unplug this apparatus during lighting
storms or when unused for long
periods of time.
14. Refer all servicing to service personnel.
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, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
IMPORTANT SAFETY INSTRUCTIONS
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK)
NO USER SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated
“
dangerous voltage
”
within the
product
’
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is in-
tended to alert the user to the presence of important operat-
ing and maintenance (servicing) instructions in the literature
accompanying the appliance.
WARNING: To reduce the risk of or electric shock, do
not expose this apparatus to rain or moisture.
CAUTION: Use of controls or adjustments or performance
of procedures other than those may result in
hazardous radiation exposure.
The apparatus shall not be exposed to dripping or splashingand that no objects with liquids, such as vases,
shall be placed on the apparatus. The MAINS plug is used as thedisconnect device,the disconnect device shall
remain readily operable.
Warning: the user shall not place this apparatus in the area during theoperation so that the mains switch
can be easily accessible.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN

2
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
1. INTRODUCTION
Congratulations on your purchase of a DMA series digital matrix amplier. The DMA’s exible deisgn will provide you
with up to eight channels of audio matrixing and processing. A single DMA amplier oers eight-in, eight-out support (or
eight-in, four-out), and the entire system can be controlled through standard potentiometers, remote controls or exible
remote software. Internal processing is accomplished through a high quality 40-bit oating point processor, with internal
signal processors and matrix routing all handled with ease�
DMA digital matrix ampliers oer easy, eective means for injecting signal processors directly into your input and output
path, with clear, easy-to-use software both onboard and on your Windows computer. The software oers full performance
monitoring for each processor, giving real-time information on the load placed upon DSPs�
2. FEATURES
● 8 input channels available via 3-pin Euroblock connections and stereo RCA inputs
● Full control possible through onboard software accessed with VGA display and USB mouse connected
● Built-in multi-channel amplifier for low-impedance or line distribution application*
● For power output levels for individual models, please consult the Specifications on page 17
● 40-bit floating point processor with internal sampling selectable between 44.1 and 48 kHz
● Optional 4x4 or 8x8 networking capabilities through audio streaming LAN card
● Digital AES/EBU input and output connectors
● Auto shutdown mode for reduced power consumption
● Ethernet connectivity for network and internet control application
● Automatic DHCP network IP configuration
● Easy and intuitive control software from Asystems
● Event scheduling and user-accounts
● 4-band parametric EQs and 31-band graphic equalizers
● Adjustable compressors and limiters built-in
● Feedback silencing technology seeks and destroys feedback
● User-dened crossovers available on output channels
● Autoleveler (Loudness Control)
● Level ducking with trigger control
*Operating mode is dependent on purchased model.

3
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
1. Mounting Holes
These holes are for mounting the DMA device in a
standard 19” rack.
2. Output Level Control Knobs
Every output channel is equipped with a rotary knob for
adjusting the nal output level. These controls can be
deactivated within the DMA software�
3. OUT LED
Every output channel is equipped with a 4-segment IN
LED level meter, including a CLIP/PROTECT indicator.
4. BRIDGE LED
This LED lights when the two corresponding channels
are bridged with one another.
NOTE: Every input channel is equipped with one output level
control knob, one IN LED and 1 level meter� Each channel pair
features a BRIDGE LED�
5. Cooling Inlet Vents
Cool air is drawn in here� Please do not cover these
vents for any reason as you risk overheating the DMA.
6. Reset Button
A pinhole button is included for resetting the DMA series
matrix amplier to the factory default settings.
7. Indicators
POWER: Lights when the device is on�
DISABLE: Lights when the power switch is disabled.
STANDBY/UNLOCK: Lights when DMA device is in the
Standby mode.
PROTECT: Lights when the protect circuity is active�
8. Power Switch
Flick this switch to turn the unit on and enter it into
STANDBY mode. Please note that this switch can be
disabled through the onboard software. If the power
switch becomes unresponsive, check your power
settings�
WARNING: The DMA requires up to 2 minutes to be fully
discharged after the power is turned o. During this time the
system cannot be powered on properly.
3. CONTROLS AND I/O
FRONT PANEL
1 2 5
6
7 8
4
3
DMA8425 / DMA8413
DMA8825 / DMA8813

4
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
REAR PANEL
1. AC Power Connector
This power inlet is for connecting a standard IEC
power cable. Under no circumstances should the user
remove the grounding pin on the power cable.
2. AES/EBU Connector
For connecting AES/EBU-enabled devices.
3. RS-232 Connector
For remote control through non-Ethernet based hardware
that utilizes a RS-232 control data protocol. This feature
is only found on the DMA8825� A detailed protocol
document can be found on the Asystems website.
4. VGA Connector
Connect this port to an appropriate video screen to view
the DMA’s internal software. This can be controlled by
any connected wired or wireless mouse�
5. SD Card Slot
Insert an SD card here to play digital audio les.
6. WCLK Connector
This port is for connection of a master clock,
enabling multiple digital audio devices to be perfectly
synchronized.
7. USB Ports
These USB ports are for connection of a standard
wired or wireless USB mouse for stand-alone control
of the internal software. The second USB port can be
used when performing rmware updates.
8. SPEAKER OUTPUTS (Amplied Output)
For connecting passive loudspeakers.
9. PERIPHERAL Connector
For connecting the Asystems RM-6E programmable
remote control (sold separately).
10. PRESET RECALL Connector
For connecting Asystems’ RM-4 series remote preset
recall control (sold separately).
11. REMOTE LEVEL CONTROL Connector
For connecting Asystems’ RM-2VR series remote
level control (sold separately).
12. INPUT Connectors
Two types of input connectors are oered - Euroblock
and unbalanced RCA.
13. OUTPUT Connectors
DMA matrix ampliers adopt 3-pin Euroblock output
connectors for line-level output. These can be used
as balanced or unbalanced connections (see section
“Audio Output” on page 6 for more).
14. DIGITAL I/O Expansion Card Slot
This slot is for installing Asystems’ DT44 or DT88
Dante Networking card to enable the DMA as a
networking portal to other Dante-enabled devices.
15. ETHERNET Connector
RJ-45 connector for connecting the DMA8825,
DMA8813, DMA8425 or DMA8413 to a PC or local
area network.
The Asystems DMA8825, DMA8813, DMA8425 and DMA8413 share the same basic I/O design and layout. The major
dierence is that the DMA8825 and DMA8813 have 8 speaker output connectors and 8 line-out connectors, while the
DMA8425 and DMA8413 have 4 speaker output connectors and 4 line-out connectors (as shown below).
15
14
13
118
12763 54
2
1
9
10
DMA8425 / DMA8413
DMA8425 / DMA8413

5
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
DMA8825, DMA8813, DMA8425 and DMA8413 are
compatible with standard 19” audio equipment racks.
Slide the DMA in to the rack and secure it with four
Phillips screws and appropriate square nuts� The DMA
matrix ampliers all take up 2 standard units of rack
space�
4.2 CONNECTIONS
Connect all necessary input and output devices�
AUDIO INPUT
Input can be achieved through correctly wiring the Euroblock connectors and RCA connectors
4. INSTALLATION AND SETUP
4.1 RACK MOUNTING
To Monitor Display USB Mouse Audio In
To PC/Internet/
Intranet
DMA8425/DMA8413
AUX Out
AUX Out
Amplified Out
Amplified Out
Euroblock Connectors RCA Connectors
Balanced
PIN 1: Shield/Ground
PIN 2: Cold (-)
PIN 3: Hot (+)
Unbalanced
PIN 1: Shield/Ground
PIN 2: Link to PIN 1
PIN 3: Hot (+)

6
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
AUDIO OUTPUT
AMPLIFIED OUTPUTS
These euroblock outputs are used to connect speakers,
either in low-impedance or distributed lines depending
on your model. Amplied outputs are wired like so:
PIN 1: Cold (-)
PIN 2: Hot (+)
Each pair of amplied output channels can be bridged
into one channel. This combines the output power of
both channels creating a single channel with twice as
much power�
To bridge channels, just wire the “+” pin of an odd-
numbered channel to the “+” pin of the next even
channel. When bridged, the “+” pin of the even channel
becomes the “-” pin of the bridged new output.
When activating bridge mode, be sure to go into the
Control Panel menu of the DMA software and click the
corresponding “Bridged” button.
AUX OUTPUTS
Oering line-level signals, AUX OUTPUT connectors
can be wired as either as balanced or unbalanced
connections�
DIGITAL I/O EXPANSION CARD
1� Loosen the two screws and remove the cover plate�
2. Connect the DT44 or DT88 Dante Networking card.
3. Tighten the two screws back to secure the cover plate.
Euroblock Connectors
Balanced
PIN 1: Shield/Ground
PIN 2: Cold (-)
PIN 3: Hot (+)
Unbalanced
PIN 1: Shield/Ground
PIN 2: Link to PIN 1
PIN 3: Hot (+)

7
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
ONBOARD CONTROL
DMA8825, DMA8813, DMA8425 and DMA8413 include built-in control software. You can get full control over the DMA
matrix amplier via the control software by plugging in a standard VGA display and a USB mouse to the ports shown
below.
DMA8425/DMA8413
REMOTE CONTROL
1. RM-2VR REMOTE LEVEL CONTROL
Please connect Asystems’ RM-2VR Remote Control to
the REMOTE LEVEL CONTROL connectors of the DMA
matrix amplier. The channels controlled by the VR is
determined by the wiring of the control. Please note, the
ground for channel 2 is internally wired to channel 1� Only
one grounding pin needs to be connected to the DMA.
In the example found to the right, channels one and two
can be remotely controlled using the RM-2VR.
2. RM-4 REMOTE PRESET RECALL CONTROL
With Asystems’ RM-4 Remote Preset Recall connected
to the PRESET connector and some congurations within
the control software, 4 presets can be accessed via
pressing a button. See page 15 for more information on
setting presets�

8
DMA8825 / DMA8813 / DMA8425 / DMA8413
English
3. RM-6E PROGRAMMABLE REMOTE CONTROL
The Asystems RM-6E Programmable Remote Control
can be connected to the PERIPHERAL connector on
the rear of the DMA� The DIP switch on the RM-6E
determines which communication port the remote will
use (see congurations below). Up to 6 functions can be
programmed to be controlled remotely using the RM-6E.
See page 16 for more information�
4. WINDOWS-BASED PC
DMA8825, DMA8813, DMA8425 and DMA8413 can be controlled via a connected Windows-based PC.
1. Connect the Ethernet port of the DMA to the Ethernet port of your computer with a CAT5 RJ-45 Ethernet cable.
2. On your PC, right click your network icon and select
“Open Network and Sharing Center”�
4. Click “Properties” button.
3. Double click your main connection located next to the
“Connections”.
5. Select “Internet Protocol Version 4 (TCP/IPv4)” and
then click the “Properties” button.
PORT
DIP
12345678
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