Atlas IED ASP-MG24 User manual

– 1 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
ASP-MG24
Signal Processor / Masking Generator
2 Input x 4 Output

AtlasIED.com – 2 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Table of Contents
Important Safety Instructions.................................................................................................................. 3
Introduction ............................................................................................................................................ 5
Key Features........................................................................................................................................... 5
Front Panel Description ........................................................................................................................... 6
Rear Panel Description ............................................................................................................................ 7
Getting to Know the Software................................................................................................................. 8
Mic / Line Input ....................................................................................................................................... 9
Masking Generator Inputs..................................................................................................................... 13
Masking Generator Outputs.................................................................................................................. 16
File Import and Export........................................................................................................................... 20
Specifications ........................................................................................................................................ 24
Warranty ................................................................................................................................................ 28

– 3 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this device near water.
6. Clean only with dry cloth.
7. Do not block any 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 devices that produce heat.
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 are provided for your
safety. If the provided plug does not fit 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 plugs, convenience receptacles, and the point where they
exit from the device.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the device. When a cart is used,
use caution when moving the cart / device combination to avoid injury from tip-over.
13. This product is equipped with a three-wire grounding-type plug, a plug having a third (grounding) pin. This plug will only fit into a
grounding-type power outlet. This is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to
replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.
14. Unplug this device during lightning storms or when unused for long periods of time.
15. Refer all servicing to qualified service personnel. Servicing is required when the device 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 device, the device has been exposed
to rain or moisture, does not operate normally, or has been dropped.
16. WARNING: To reduce the risk of fire or electric shock, this device should not be exposed to rain or moisture and objects filled with
liquids, such as a vase, should not be placed on this device.
17. To completely disconnect this equipment from the mains, disconnect the power supply cord plug from the receptacle.
18. The mains plug of the power supply cord shall remain readily operable.
19. Protective earthing terminal. The apparatus should be connected to a mains socket with a protective earthing connection.
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’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the product.
WARNING: SHOCK HAZARD - DO NOT OPEN
AVIS: RISQUE DE CHOC ELÉCTRIQUE - NE PAS OUVRIR
WARNING:TO REDUCETHE RISK OF FIRE OR ELECTRIC SHOCK
DO NOT EXPOSETHIS EQUIPMENT TO RAIN OR MOISTURE
AVIS: NE PAS EXPOSER CE MATÉRIEL À LA PLUIE OU L’HUMIDITE
AFIN DE REDUIRE LE RISQUE D’INFLAMMATION OU DE CHOC ELÉCTRIQUE

AtlasIED.com – 4 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
WARNING - When The Device Is In Use
• WARNING: For the terminals marked with symbol of may be of sufficient magnitude to constitute a risk of electric shock. The
external wiring connected to the terminals requires installation by an instructed person or the used of ready-made leads or cords.
• WARNING: The apparatus shall not be exposed to dripping or splashing and that objects filled with liquids, such as vases, shall not be
placed on apparatus.
• WARNING: The mains plug is used as disconnect device, the disconnect device shall remain readily operable.
• To prevent electric shock, do not remove the product cover as there are high voltage components inside. Refer all servicing to
AtlasIED.
• Should any of the following irregularities occur during use, immediately switch off the power, disconnect the power cord from the
AC outlet and contact AtlasIED. Do not to attempt to continue operation with the product as this may cause fire or electric shock:
• Smoke or strange smell coming from the unit.
• If the product falls or the case is damaged.
• If water or any metallic objects falls into the product.
• If the power supply cord is damaged in any way.
• If the unit is malfunctioning.
• Do not insert or drop metallic objects or flammable materials into the ventilation holes of the product's cover, as this may result in
electric shock or fire.
• Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills into the unit, fire or electric
shock may result.
• Never operate this product or touch the power supply cord during an electrical storm, electric shock may result.
• Never exceed the power rating on the product when connecting equipment. Fire and/or property damage may result.
• Operate the product only with the voltage specified on the unit. Fire and/or electric shock may result if a higher voltage is used.
• Do not modify, kink, or cut the power cord. Do not place the power cord in close proximity to heaters and do not place heavy objects
on the power cord, including the product itself, doing so may result in fire or electrical shock.
• Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground to a gas pipe as a catastrophic
disaster may result.
• Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and cause
injury or property damage.
CAUTION - When Installing The Product
• Plugging in or unplugging the power cord with wet hands may result in electric shock.
• Never move the unit with the power cord plugged into the wall, as damage to the power cord may result.
• When unplugging the cord from the wall, grasp the plug, NOT the cord.
• Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat, or in areas where sooty smoke or
steam are present. Fire and electric shock may result.
• Keep all sides of the unit at least 31/2" away from objects that may obstruct air flow to prevent the unit's internal temperature rise.
CAUTION - When The Product Is In Use
• Never place heavy objects on the product, causing it to fall and/or break, resulting in personal injury and property damage. In
addition, the product itself may fall and cause injury and property damage.
• Contact AtlasIED for instructions on cleaning the inside of the unit. Large accumulations of dust inside the unit may result in heat
buildup and fire.
• Ensure that the power supply plug is securely plugged into the wall outlet. Never allow dust to accumulate on the power plug or
inside the wall outlet.
• When cleaning the unit or the unit is not to be operated for an extended period, unplug the power cord from the wall.

– 5 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Introduction
The AtlasIED ASP-MG24 is a 2 input by 4 output digital loudspeaker management system and masking generator designed for
fixed sound installation markets. The ASP-MG24 features the latest in available technology utilizing a 32-bit (40-bit extended) floating
point processors and high performance 24-bit Analog Converters. Both balanced inputs are mic/line selectable along with 4 addition
independent masking generator input sources. Inputs and outputs can be routed or mixed in multiple configurations to meet even the
most complex system designs. Control parameters include I/O levels, delay, polarity, parametric EQ, crossover selections, 31 band EQ,
White/Pink Noise, Auto Ramp, routing, mixing and compressor/limiters. The ASP-MG24 can be controlled or configured in real time with
the intuitive PC GUI, accessed via the RS-232 or USB interface. Software upgrade for CPU and DSP via PC always keeps the
ASP-MG24 current. A programmable remote control is also available.
Key Features
• 2 Mic/Line Inputs and 4 Outputs
• System routing and mixing flexibility
• 4 Independent Random Pink or White Noise Generators
• 8 Parametric Filters for each Input and Output
• Multiple Crossover types up to 48dB
• Full Function Compressor Limiters
• Four 1/3rd Octave Graphic Equalizers for Masking
• User set masking auto ramp
• Precise Level, Polarity and Delay
• Full 5-segment LED’s on every Input and Output
• Storage of up to 30 Program Setups
• Multiple Levels of Security Locks
• Optional Programmable System Controller
• RS-232 & USB Interface for PC Control and Configuration
• CPU and DSP upgrade via PC

AtlasIED.com – 6 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Front Panel
1. LED Power Indicator
The Power LED will illuminate Blue when the external power supply is plugged into the power socket and the power supply is plugged
into a AC source.
2. Level LED Indicators
5 LEDs per channel indicate the status of the signal level: Signal, -12dB, -6dB, -3dB, Over / Limit. The Input “Over” LED references to
the device’s maximum headroom. The Output “Limit” LED references to the threshold of the limiter.
3. RS232 Connector
Standard female DB9 socket. A straight through cable is required for PC connection.
4. USB Connector
Standard female USB socket. A straight through cable is required for PC connection.
5. LED Data Indicator
The Data LED will illuminate Green when there is connection made between the ASP-MG24 and the computer.
54 123

– 7 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Rear Panel
1. Power Supply Socket
An external UL rated 120v AC power supply has been included with the ASP-MG24. Only use the provided power supply due to the
specific DC voltages required to operate the unit.
2. Input Connectors
There are two removable 3 Pin Phoenix type connectors for providing input signal to the unit. They can accept either a balanced or
unbalanced signal. For balanced signals connect (Ground to GND), (Positive signal to +) and (Negative signal to -). For unbalanced
signals connect the (- to the GND together) and the (Positive to +).
3. Mic / Line Level Selection
Each Input has the capability to accept either a microphone or line level signal. Prior to connecting the inputs make sure the software
input gain that apply to the channel routing are set to -10dB. Also the limiters are set to +20dB for gain setup. Prior to applying signal
to the input you must set the analog gain switch to match the type of input you are using. The Line position gain is calibrated for 0dBu
or unity gain within the DSP software. The Mic position is calibrated for -30dBu when the DSP gain is set for unity or 0dB. If more gain
is needed carefully turn the up the appropriate channel DSP gain in the software. If you will be using a microphone it is recommended
when starting to turn the input gain to -40dB and slowly bring up the input gain to the desired level.
4. Output Connectors
There are four removable 3 Pin Phoenix type connectors for providing output signal. They can deliver either a balanced or unbalanced
signal. For balanced signals connect (Ground to GND), (Positive signal to +) and (Negative signal to -). For unbalanced signals connect
the (- to the GND together) and the (Positive to +).
5. RJ45 Port
This port is used for remote system controllers. For Ethernet connection an optional card is required. Call AtlasIED for more details.
2 351 4

AtlasIED.com – 8 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Getting to Know the Software
Loading the Software
1. Load the software onto your computer by following the Quick Star Guide and Software Installation Guide.
2. Note: It is important to have your computer screen resolution set to the highest viewing setting or a minimal setting of 1280 x 1240
pixels. Failure to do may cause the dialog boxes to appear out the viewing area. To find a window that should appear use the master
screen curser Up / Down arrows to find the three boxes. All screens can be moved by clicking and holding the selected screen for
personal viewing preferences.
3. After the software is loaded and the proper screen resolution is set. Open the software and follow the steps below: Note: It is not
necessary to have the computer connected to the ASP-MG24 viewing and program purposes.
Opening the Software
1. Your screen should look like the view below. If not, close the software and restart.
2. If you have the ASP-MG24 connected to your computer click “Yes “ to connect or you can work in Off Line Mode by clicking “NO”.
3. After you have the screen above, click on (1) Start, (2) Log On and then (3) Enter. Do not put anything into the pass word box at this
time. Later you will assign one if needed. If a pass word has been assigned, you will need to enter it.
You are now ready to open the Device panel by clicking on Device 1. Note: An ASP-MG24 is also known as a “Device”. Multiple
ASP-MG24’s can be controlled via one GUI interface. If only one ASP unit is connected to the computer click on Device 1 and the
main control window will appear.

– 9 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Mic / Line Input
Input Meter
The bar graph meter illustrates the level of the input signal POST the channels gain control and is PRE input filters and compressor
settings.
Gain
For you convenience both Mic / Line Inputs and the four masking generators levels are shown. Controlling the gain can be
accomplished by dragging the fader, using the up down buttons or by typing in the number viewing text box. Channel Mute can be
accomplished by clicking on the Mute tab and will illumination Red indicating the channel is in Mute. Input Polarity can be set by clicking
on the Polarity tab.

AtlasIED.com – 10 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Compressor
Inputs 1 & 2 have fully adjustable compressor limiters. When clicking on the compressor tab, two sub viewing screens will appear.
Note: All control boxes can be dragged for desired positioning of the screen. Screen 1 is an indicator screen showing the
compressor / limiter operation. The second is the settings screen. In that screen you have control over Threshold, Attack, Release and
Ratio. Adjustment can be made using the Up / Down arrows or by typing into the data viewing text box.
• Threshold - Limit Threshold. Ranges from -20 to +20dBu in 0.5dB steps.
• Attack - Attack time. Ranges from 0.3 to 1ms in 0.1ms steps, and ranges from 1 to 100ms in 1ms steps.
• Release - Release time. Can be set at 2X, 4X, 8X, 16X or 32X the attack time.
• Ratio - The Ratio control allows adjustment to the amount of Input vs. Output level with signals exceeding the set threshold limit.

– 11 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Filter
When clicking on the filter screen 3 sub viewing screens appear. Note: If the screens do not appear you may have to change your
screen resolution. Also use the screen curser Up / Down arrows to find the three boxes. All three screens can be moved by clicking and
holding the selected screen for personal viewing preferences.
Graphic Screen
This screen will view all the all filter chacteristics that are set.
Filter Adjust Window
Each input has 8 adjustable filter selections. Choices are Parametric, Hi-shelf and Lo-shelf. Adjustments can be made via the up / down
arrows, text window and by dragging the curser on the Graphics Screen. After any adjustment made they should appear on the Graphic
Screen.

AtlasIED.com – 12 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Crossover Window
The Crossover Window allows the adjustment of Filter type, Frequency, and slope. The Reset button will set all filters back to factory
settings. This Reset button only effects this screen settings.
Graph Sub Screen Window
Advance Viewing Feature - In the top right corner of the window there is option button. This window allows you to view multiple
channels of filters. Re set the viewing scale. The Reset button will set all filters back to factory settings. This Reset button only effects
this screen settings.
Mute
This button when depressed turns Red and mutes the signal at the input of the channel.

– 13 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Masking Generator Inputs
Meter
There are four bar graph meters that illustrates the level of the output signal of the generator, it is POST the channels gain control and
PRE input filters.
Masking
When the Masking window a small window will open. This window also to the selection of the filter either White or Pink noise.
Ramp Time
The Power Ramp button allows you set the desired turn on signal ramp time during power up. The Time buttons allows you to adjust the
amount of preset time you need. The amount of steps is a formula of gain divided by time. The ramp interval voltage change will occur
every 6 seconds. The amount of dB steps will vary depending on the total ramp time you select and the amount of gain from change
from -40dB. Example: If you choose 2 minute of ramp time and the channels gain is set for -10dB, use the following is the formula to
calculate dB rate of change (Gain = -40dB minus -10dB = -30dB) and (Time = 120 seconds / 6 seconds = 20 steps) Gain Steps = 30dB /
20 steps = 1.5 dB change per second.
Ramp Bypass
If the Power UP Ramp button is Green the ramp feature is engaged, if grey the feature is bypassed.

AtlasIED.com – 14 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Gain
For you convenience both Mic / Line Inputs and the four masking generators levels are shown. Controlling the gain can be
accomplished by dragging the fader or by using the up down buttons or by typing in number viewing text box. Channel Mute can be
accomplished by clicking on the Mute tab and will illumination Red indicating the channel is in Mute.
Masking EQ
When clicking on the filter screen, 3 sub viewing screens appear. Note: All three screens can be moved for personal viewing
preferences.
Graphic Screen
This screen will view all the all filter characteristics that are set. There 31 filter select points on the screen. By dragging your curser
over the number and left clicking the mouse and holding you can drag the filter to the amount of boost or cut for a specified 1/3 octave
frequency.

– 15 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
1/3 Octave Graphic Screen
This screen corresponds with the Graph screen. There are 20 filters that appear in this window. That is because the masking operating
range is from 100Hz to 8KHz..Adjustments to the filters can be made dragging the filter number on the screen or by typing the number
into the window or by using the UP / Down arrows. The Reset button will set all filters back to factory settings. This Reset button only
effects this screen settings.
Crossover Window
The Crossover Window allows the adjustment of Filter type, Frequency, and slope. The Reset button will set all filters back to factory
settings. This Reset button only effects this screen settings.

AtlasIED.com – 16 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Mute
This button when depressed turns Red and mutes the signal at the input of the channel.
Masking Generator Outputs
Mixer
This button allows you to route or mix any of the inputs to this output. When clicking on this button a window will appear that shows all
six inputs. Each input channels gain operates from OFF to 0dB. Controlling the mixed gain can be accomplished by dragging the fader
or by using the up down buttons or by typing in number viewing text box. Note: The signal feeding into the mixer will not be effect by
other output channel mixes. When you have completed you routing or mix you can view the route by channel indicator lines or by the
number of channels indicated in the mixer viewing window.

– 17 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Filter
When clicking on the filter screen 3 sub viewing screens appear. Note: All three screens can be moved for personal viewing
preferences.
Graphic Screen
This screen will view all the all filter characteristics that are set.
Filter Window
Each input has 8 adjustable filter selections. Choices are Parametric, Hi-shelf and Lo-shelf. Adjustments can be made via the up / down
arrows, text window and by dragging the curser on the Graphics Screen. After any adjustment made they should appear on the Graphic
Screen.

AtlasIED.com – 18 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Crossover Window
The Crossover Window allows the adjustment of Filter type, Frequency, and slope. The Reset button will set all filters back to factory
settings. This Reset button only effects this screen settings.
Delay Window
The delay window allows you adjust the channels delay from 0ms to 200ms per output. Controlling the mixed gain can be
accomplished by using the up down buttons or by typing in number viewing text box.
Gain
The four output gain levels are shown when clicking on this window. Controlling the gain can be accomplished by dragging the fader or
by using the up down buttons or by typing in number viewing text box. Channel Mute can be accomplished by clicking on the Mute tab
and will illumination Red indicating the channel is in Mute. Input Polarity can be set by clicking on the tab.

– 19 – AtlasIED.com
Specifications are subject to change without notice.
Owner’s Manual ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Limiter
All four outputs have fully adjustable limiters. When clicking on the compressor tab, two sub viewing screens will appear. Note: All
control boxes can be dragged for desired positioning of the screen. Screen 1 is an indicator screen showing the compressor / limiter
operation. The second is the settings screen. In that screen you have control over Threshold, Attack, Release and Ratio. Adjustment can
be made using the Up / Down arrows or by typing into the data viewing text box.
• Threshold - Limit Threshold. Ranges from -20 to +20dBu in 0.5dB steps.
• Attack - Attack time. Ranges from 0.3 to 1ms in 0.1ms steps, and ranges from 1 to 100ms in 1ms steps.
• Release - Release time. Can be set at 2X, 4X, 8X, 16X or 32X the attack time.
• Ratio - The Ratio control allows adjustment to the amount of Input vs. Output level with signals exceeding the set threshold limit.

AtlasIED.com – 20 –
Specifications are subject to change without notice.
Owner’s Manual
ASP-MG24
Signal Processor / Masking Generator
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Mute
Channel Mute can be accomplished by clicking on the Mute tab and will illumination Red indicating the channel is in Mute.
Output Meter
The bar graph meter illustrates the level of the output signal POST the channels gain control and filters but is PRE Limiter settings.
File Import and Export