A systems Dma8825 User manual

User’s Manual

Digital Matrix Amplifier

DMA8825

DMA8813

DMA8425

DMA8413

2

DMA8825 / DMA8813 / DMA8425 / DMA8413

INTRODUCTION�� 2

FEATURES�� 2

CONTROLS and I/O�� 3

FRONT PANEL�� 3

REAR PANEL �� 4

INSTALLATION AND SETUP �� 5

RACK MOUNTING�� 5

CONNECTION �� 5

CONTROL SOFTWARE�� 10

SPECIFICATIONS�� 17

PARAMETERS �� 18

Asystems reserves the right to alter any information contained within this

manual without prior notice�

V1�1 09/30/2015

TABLE OF CONTENTS

1

DMA8825 / DMA8813 / DMA8425 / DMA8413

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

ATTENTION

AVERTISSEMENT: POUR REDUIRE LE RISQUE DE CHOC

ELECTRIQUE, NE RETIREZ P AS LE COUVERCLE (OU L'ARRIERE),

PAS DE PIECE RE PARABLE PAR L'UTILIS ATEUR A L'INTERIEUR

CONFIEZ LES RE PARATIONS A UN PERSONNEL QUALIFIE .

IMPORTANT SAFETY INSTRUCTIONS

2

DMA8825 / DMA8813 / DMA8425 / DMA8413

1.INTRODUCTION

Congratulations on your purchase of a DMA series digital matrix amplier. The DMA’s modular expansion cards will

provide you with up to eight channels of audio matrixing and processing. A single DMA amplier offers eight-in, eight-out

support (or eight-in, four-out), 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�

DMA digital matrix ampliers offer easy, effective 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 offers 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-controlled onboard software accessible with VGA display and USB mouse connected

● Built-in multi-channel amplifier runs for low-impedance or line distribution application*

● 40-bit floating point processor with internal sampling selectable between 44.1 and 48 kHz

● Optional 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 with multi-layer security

● 4-band parametric EQs and 31-band graphic equalizers

● Autoleveler (Loudness Control)

● Level ducking with trigger control

3

DMA8825 / DMA8813 / DMA8425 / DMA8413

1. Mounting Holes

These holes are for mounting the DMA device on a

standard 19” rack.

2. Output Level Control Knob 1 – 8 (DMA8825/DMA8813)

or 1 -4 (DMA8425/DMA8413)

Every output channel is equipped with a rotary knob for

adjusting the nal output level.

3. IN LED

Every input channel is equipped with a 4-segment IN

LED, plus with a CLIP/PORT indicator.

4. BRIDGE LED

This LED lights when the channel is bridged with another

channel�

* Every input channel is equipped with 1 control knob,

1 IN LED and 1 BRIDGE LED�

5. Cooling Inlet Vents

Cool air is drawn here�

6. Reset Button

A pinhole button is included, for resetting the DMA

device to the factory default values�

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.

WARNNING:The DMA requires 2 minutes to be fully

discharged after the power is off, or it cannot power on

properly�

3. CONTROLS and I/O

FRONT PANEL

4

DMA8825 / DMA8813 / DMA8425 / DMA8413

REAR PANEL

1. AC Power Connector

The power inlet for connecting a standard IEC power

cable.

2. AES/EBU Connector

For connecting AES/EBU-enabled devices.

3. VGA Connector

4. SD Card Slot

5. WCLK Connector

6. USB Port

7. SPEAKER OUTPUTS (Amplied Output)

For connecting with passive loud speaker.

8. PERIPHERAL Connector

For connecting with ASYSTEMS’ RM6E programmable

remote control (sold separately).

9. PRESET RECALL Connector

For connecting with ASYSTEMS’ RM series remote

control�

10. REMOTE LEVEL CONTROL Connector

For connecting ASYSTEMS’ RM series remote control.

11. INPUT Connector

Two types of input connector offered - Euroblock and

balanced 14”TRS.

12. OUTPUT Connector

DMA8825/DMA8813/DMA845/DMA8413 adopts

3-pin Euroblock output connectors as the line-out

interface. Those connectors can be set as balanced or

unbalanced. (See section “Installation and Setup”).

13. Digital I/O Expansion Card Slot

For installing ASYSTEM’s DT22/DT44/DT88 Dante

Networking card to enable DMA8825/DMA8813/

DMA845/DMA8413 as a networking portal to other

audio devices�

14. ETHERNET Connector

RJ-45 connector for connecting DMA8825/DMA8813/

DMA845/DMA8413 with PC or intranet�

DMA8825, DMA8813, DMA8425 and DMA8413 share the same I/O design and layout� Except that DMA8825/DMA8813

has 8 speaker output connectors and 8 line-out connectors, and DMA8425/DMA8413 has 4 speaker output connectors

and 4 line-out connectors.

5

DMA8825 / DMA8813 / DMA8425 / DMA8413

DMA8825/DMA8813/DMA845/DMA8413 is compatible

with standard 19” audio equipment rack. Slide the DMA

in to the rack and secure it with four Phillips screws.

4.2 CONNECTION

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

Euroblock connectors RCA connectors

Balanced

PIN 1: Shield/Ground

PIN 2: Colde (-)

PIN 3: Hot (+)

Unbalanced

PIN 1: Shield/Ground

PIN 2: Link to PIN 1

PIN 3: Hot (+)

6

DMA8825 / DMA8813 / DMA8425 / DMA8413

AUDIO OUTPUT

SPEAKER OUTPUTS

Every two output channels (one odd channel and the

next even channel) can be bridged into one channel,

through which, please note; that a bridged channel, has

twice more power as an unbridged channel, because the

bridged channel has two channels combined.)

To bridge channels, just wire the “+” pin of an odd

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.

OUTPUTS

Offering unamplied signal, OUTPUTS connectors can

be also connected as Balanced or Unbalanced AUX

output if wired to do so�

DIGITAL I/O EXPANSION CARD

1� Loosen the two screws and remove the cover plate�

2. Connect the DT22/DT44/DT88 Dante Networking card.

3. Tighten the two screws back to secure the cover plate.

Euroblock connectors

Balanced

PIN 1: Shield/Ground

PIN 2: Colde (-)

PIN 3: Hot (+)

Unbalanced

PIN 1: Shield/Ground

PIN 2: Link to PIN 1

PIN 3: Hot (+)

7

DMA8825 / DMA8813 / DMA8425 / DMA8413

ONBOARD CONTROL

DMA8825/DMA8813/DMA845/DMA8413 is included with a built-in control software. You can get full control over the

DMA8825/DMA8813/DMA845/DMA8413 via the control software by plugging a standard VGA connector to a display

monitor and a USB mouse.

REMOTE CONTROL

1. RM-4 Remote Preset Recall Control

With AYSTEMS’ RM-4 Remote Preset Recall

connected to the PRESET connector and some

congurations on the control software, 4 presets can

be accessed via pressing a button.

2. RM-2VR REMOTE CONTROL

Please connect the AYSTEMS’ RM-2VR Remote

control; to the REMOTE LEVEL CONTROL connector

of the DMA 8825. You can assign any congurations

on the control software� Please note that any assigned

Level control item can be controlled remotely.

8

DMA8825 / DMA8813 / DMA8425 / DMA8413

3. RM-6E PROGRAMMABLE REMOTE CONTROL

When connecting the AYSTEMS’RM-6E Remote

control to the PERIPHERAL CONNECTOR by DIP

switch combination on the control software, 6 functions

can be programmed to be controlled remotely.

4. WINDOWS-based PC

DMA8825/DMA8813/DMA845/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 commercial CAT5 RJ-45 Ethernet

cable.

2. On your PC, goes to “Open Network and Sharing

Center”�

4. Click “Properties” button.

3. Double click the enabled item next to the

“Connections”.

5� Select the “Internet Protocol Version 4 (TCP/

IPv4)”, and then click “Properties” button.

9

DMA8825 / DMA8813 / DMA8425 / DMA8413

6. Change the “IP address” to “192.168.10.3”, and

then click “OK”�

8� On the Login box, enter as follows to log in:

IP Address: 192.168.10.200

User Name: USER_1

Password: ASYSTEMS

7. Launch the control software by double clicking the

executable le.

9. Click

10

DMA8825 / DMA8813 / DMA8425 / DMA8413

5. CONTROL SOFTWARE

DSP

The DSP page will give you an overall proles of input and

output mixes as well as assigned signal processor�

Name Cell: Those white boxes at left end and right ends

shows the name of each input and output channel. You

can access the edit screen to edit the name for each

channel by double-clicking on the white box.

ON/OFF: This button switch the corresponding input

channel on and off�

Signal Processor Cell: Every input/output channel has a

row of four arrow shape cells�

Assign DSP by right-clicking on these four cells.

Channel In: Clicking this blue bar can switches “Channel

In Matrix” tab.

Mix In Mix out: Clicking this red bar can switches “Mix

Matrix” tab.

Channel Out: Clicking this green bar switches to “Control Panel” tab.

Clear: Clicking this button rests all DSP congurations.

Channel In Matrix:

In this page, you can assign every input source to every

input channel by clicking a cell in the cell matrix.

Example:

To assign input source 1 and 2 to the Channel In 1 and

Input source 2 to Channel In 2�

METER PRE/METER POST: To set all input sources to be

affected by the on-screen faders or not.

Analog In and Network In: Use these two buttons to

view analogue input sources connected via rear panel and digital input sources from the Dante card�

PAN: To adjust the left/right mix of the inpput signals.

ALC: To enable Automatic Level Control to the corresponding channel.

DUCK: To enable the ducking funciton to the corresponding channel.

INV: To invert the phase of the corresponding channel�

ON: To turn the corresponding signal on and off�

CLEAR: Clicking this button erases all assigned input/output routing.

11

DMA8825 / DMA8813 / DMA8425 / DMA8413

MIX Matrix:

In this page, you can assign which kind of input source to

be output. All controls are as same as controls under the

Channel In Matrix tab, except:

Analog In, Network In and Mix In: Use these three

buttons to view analogue input sources connected via

rear panel, digital input sources from the Dante card and

input signal proccessed in the Channel In Matrix tab.

Auto Mixer: When this funciotn enabled, ALC and DUCK

work simultaneously.

Network Matrix:

In this page, you can assign which kind of input source

to be output via the connected Dante card. All controls

are as same as controls under the Channel In Matrix tab,

except:

Channel Out: To view output channel (the last output

control in the singal path) effected by the Control Panel

tab.

LIM: To enable/disable the built-in Limiter.

AES/EBU Matrix:

In this page, you can assign which kind of input source to

be output via the connected Dante card. All controls are

as same as controls under the Channel In Matrix tab and

Network Matrix tab.

12

DMA8825 / DMA8813 / DMA8425 / DMA8413

Control Panel:

The control panel menu offers complete control of input

channels. This menu includes level and 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�

OUT: 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.

GR: The gain reduction meter will provide a real-

time indication of any reduction in gain applied by the

internal DSP processes (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

off, the settings of which are decided by their respective menus.

INV: This button will invert the phase of the corresponding signal.

ON/OFF: This button will turn the corresponding channel on and off.

Network

There are two pages under this tab.

Security

The screen under this page varies with the way the DMA

is controlled�

Onboard Control

User Account Profile

You can create user account under this tab. Once User

Name and Password are defined, click “SAVE”to store.

Remote Control From PC

Enter necessary information to log in�

Default values are:

IP Address: 192.168.10.200

User Name: USER_1

Password: ASYSTEMS

13

DMA8825 / DMA8813 / DMA8425 / DMA8413

Events

In the Events menu you will be able to set up a number

of events to occur at a particular time of day� Events can

range from simply powering on and off the device to

activating audio les at a particular time.

Current Time & Current Date: Here users can set the

current date and time. Click the Save button to set these

settings. The date and time will be maintained within the

DMA amplier provided power is supplied to the device,

whether active or in standby mode.

Time Format: Set the time format to 12/24 Hour time.

Schedule: Any already set Events will be displayed here.

Number: Assign a number to the event you’re currently

setting�

Subject: Provide a name or description to your event�

Location: Describe the location of where the event will occur.

Date: Set the date to begin your event.

Time: Set the time the event should occur, down to the very second.

Type: Select the type of event you are setting here. Available types include power change, channel mute, relay and SD

card�

Action: The action can be selected between on and standby.

Period: In the period section you will be able to set whether to set your event to occur once, weekly, daily, etc. You can

also pick the days of the week for it to occur.

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.

14

DMA8825 / DMA8813 / DMA8425 / DMA8413

Global In On/Off

This menu provides each individual button input, including

the analog inputs, network inputs, AES/EBU inputs and

signal generator�

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 DMA.

Source: This is used to select the source of the duck

function; i.e. 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 affected, 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.

15

DMA8825 / DMA8813 / DMA8425 / DMA8413

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�

COMP - Compressor/Limiter

This menu allows compressors and limiters to be applied

to channel outputs, network outputs or AES/EBU outputs.

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 DMA 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 a master

clock source for digital devices.Selecting 44.1 or 48 kHz

will set the DMA as the master clock source and determine

the sampling rate.Selecting AES/EBU, Network, or Word

Clock will set these as the master clock. Whenever a

new clock source is selected, the ENTER button must be

pushed to conrm.

Power Settings: There are three power settings on

the DMA.The software power can be turned on and off,

essentially enabling the DMA to be turned on and off via

the software – including event scheduling.The hardware

power can be selected on and off, essentially allow the

unit to be activated and deactivated using the hardwired

switch on the front of the DMA�

Relay (GPIO)

The GPI – or General Purpose Interface – output is used

to remotely control the Asystems DMA� The relay page

itself is used to setup the GPIs, including any and all

remote controls connected to the unit�

The Preset panel is for use with the RM-4 remote preset

controllers. The numbers in the “Port” eld correspond

with the ports on the rear of the DMA amplier. The “No”

eld is the “Scene” number found in the utility tab. Any of

your pre-saved scenes can be assigned to the available

ports�

16

DMA8825 / DMA8813 / DMA8425 / DMA8413

RM Control

This page offers a number of assignment options for the

optional Asystems RM remote controls, specically the

RM-6E. More detailed information on this will be available

within the RM-6E operating guide.

Utility

All of the DSP processes can have their settings saved

for later use. While there are a number of factory presets

available, users are always encouraged to nd their

own settings and save them for later use� The DMA has

onboard storage for a number of settings to be saved,

or users can conn ect USB ash drives to save settings.

Also available in the Utility menu is a rmware update

button. When a new version of rmware is available it can

be installed using the “Update” button. Place the rmware

update le on a formatted USB ash drive and insert it

into a USB port. The “Update” button should take care of

the rest. After the rmware is updated, the initialize button

can be selected to reset the device. Save any settings (or

“scenes”) before initializing the system.

Protect

The protect menu gives real-time updates on the system

performance� Everything from the system temperature

to the output wattage is represented on this page� If the

Protect LED on the front of the DMA amplier lights up,

this menu can be viewed to better understand the issue.

17

DMA8825 / DMA8813 / DMA8425 / DMA8413

SPECIFICATIONS

DMA 8413 DMA 8425 DMA 8813 DMA 8825

Low Z, Stereo Mode, all channels

driven RMS Power Output Per Channel

8Ω, 20Hz-20kHz 1% THD 80W 150W 80W 150W

4Ω, 20Hz-20kHz 1% THD 130W 250W 130W 250W

Low Z, Bridge Mode, all channels

driven RMS Power Output

8Ω, 20Hz-20kHz 1%THD260W 500W 260W 500W

70V, 100V distributed outputR MS Power Output Per Channel

20Hz-20kHz 1%THD, per channel 130W 250W 130W 250W

Models Available

DMA 8413: 4Ω and 8Ω

DMA 8413V: 70�7 / 100V

Constant Voltage

DMA 8425: 4Ω and 8Ω

DMA 8425V: 70�7 / 100V

Constant Voltage

DMA 8813: 4Ω and 8Ω

DMA 8813V: 70�7 / 100V

Constant Voltage

DMA 8825: 4Ω and 8Ω

DMA 8825V: 70�7 / 100V

Constant Voltage

Line Current Draw (all channels

driven)

Line Current, Standby mode 190mA 190mA 190mA 190mA

Line Current, Idle (no signal) 540mA 540mA 540mA 540mA

Line Current, Typical (1/8 power

pink noise) 2�85A 2 �85A 2�85A 2 �85A

Line Current, Maximum (1/3

power sine wave) 6.00A 6.00A 6.00A 6.00A

Signal to Noise (20Hz-20KHz,

unweighted) >110dB >110dB >110dB >110dB

Distortion (SMPTE, typical) -

8 ohm load, 10dB below rated

power

<0�5% <0�5% <0�5% <0�5%

Distortion (THD-N, typical) -

8 ohm load, 10dB below rated

power, 20Hz-20kHz

<0�5% <0�5% <0�5% <0�5%

Frequency Response 20Hz-20kHz, +/-1dB 20Hz-20kHz, +/-1dB 20Hz-20kHz, +/-1dB 20Hz-20kHz, +/-1dB

Damping Factor (8 ohm load,

<1kHz) >250 >250 >250 >250

Input Impedance 20K Ohm, balanced 20K Ohm, balanced 20K Ohm, balanced 20K Ohm, balanced

Maximum Input Level +24dB +24dB +24dB +24dB

Cooling Temperature dependent speed-controlled axial fan

Control Network Onboard, compatible with standard 100MB Ethernet hardware

Front Panel Indicators 8 x Clip, -10dB, -20dB, Signal, Bridge (per pair) Power, Standby, Protect, Power Disable

Attenuators 8 x front panel, software, and remote

Input & Output Connections Euroblock & Stereo RCA Euroblock & Stereo RCA Euroblock & Stereo RCA Euroblock & Stereo RCA

Output Connections Euroblock Euroblock Euroblock Euroblock

Inrush current limitation, temperature monitoring, output over-current protection, mains fuses

Power Suppl 120VAC/240VAC Switching Power Supply, 15A Edison cable

Dimensions (W x H x D) 483 x 89 x 394 mm

(19”x 3.5”x 15.5”)

483 x 89 x 394 mm

(19”x 3.5”x 15.5”)

483 x 89 x 394 mm

(19”x 3.5”x 15.5”)

483 x 89 x 394 mm

(19”x 3.5”x 15.5”)

Weight 9.53 kg (21 lbs) 9.53 kg (21 lbs) 9.53 kg (21 lbs) 9.53 kg (21 lbs)

18

DMA8825 / DMA8813 / DMA8425 / DMA8413

PARAMETERS

Function Parameter Range

Compressor / Limiter Compressor Threshold� -50 dB to 0 dB

Ratio 1:1 to 20:1

Limiter Threshold� -50 dB to 0 dB

Output Gain0 dB to 18 dB

Attack / Release 1 ms to 8 seconds

Gate Threshold� -50 dB to 0 dB

Range .-90 dB to 0 dB

Attack / Hold / Release 1 ms to 8 seconds

Expander Threshold� -50 dB to 0 dB

Ratio 1:1 to 20:1

Attack / Release 1 ms to 8 seconds

Delay Delay Time (mS) 0.0 to 680.0 ms

Delay Time (meters)0 �0 to 245�5

Delay Time (feet)0 �0 to 805�4

Temperature (C)0 ° to 50°

Temperature (F) 32° to 122°

4-band Equalizer Type BPF, Notch, Peak, HPF, LPF, High Shelf, Low Shelf

Gain -18 dB to +18 dB

Frequency 20 Hz to 20 kHz

Q0 �1 to 10

31-band Graphic EQ Frequencies 20 Hz to 20 kHz

Range -12dB to +12dB

Q1 .6 to 10

Filters Type HPF (6 dB, 12 dB, 18dB, 24dB), LPF (6 dB, 12 dB, 18dB, 24dB), High Shelf,

Low Shelf, Peak, APF, BPF, Notch

Gain -18 dB to +18 dB

Frequency 20 Hz to 20 kHz

Q0 �1 to 10

Feedback Silencer Threshold� -50 dB to 0 dB

Release Time 10 sec/dB to 300 sec/dB

Gain .-20 dB to 0 dB

Frequency 20 Hz to 20 kHz

Q4 �5 to 10

VCA Gain -∞ to 6 dB

Automatic Level Control In Target 0 dB to -50 dB

Below Target -30 dB to 0 dB

Ratio 1:5~20:1

Increase Gain 40ms/dB to 1000ms/dB

Decrease Gain 1000ms/dB to 40ms/dB

Hold Time 0s to 10s

Ducker SourceA nalog 1 to 8, Network 1 to 8, AES/EBU

Threshold- 50 dB to 0 dB

Depth- 80 dB to 0 dB

Attack / Release 0�2s to 20s

Crossover HPF / LPF Type Butterworth 12dB, 18dB, 24dB

HPF / LPF Frequency 20 Hz to 20 kHz

Signal Generator Sine Wave Frequencies 20Hz to 20KHz

Sweep Wave Start/End Frequencies 20Hz / 20KHz

Sweep Wave Hold Time 50ms to 2000ms

Signal Level Range .-60dB to -10dB

A SYSTEMS DMA8825 User manual

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