The Atlas Sound 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. Optional masking scheduler and programmable remote control is also available.
2.0 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 Advance Masking Scheduler
• Optional Programmable System Controller
• RS-232 & USB Interface for PC Control and Configuration
• CPU and DSP upgrade via PC
Specifications are subject to change without notice
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 Atlas for more details.
Specifications are subject to change without notice
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.
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.
5.2. Opening the Software
1. Your screen should look like the view below. If not, close the software and restart.
Failure to do may cause the dialog boxes to
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.
Specifications are subject to change without notice
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.
OWNER'S MANUAL
6.0 MIC / LINE INPUT SECTION
6.1 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.
Specifications are subject to change without notice
6.2 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.
6.3 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.
OWNER'S MANUAL
• 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.
Specifications are subject to change without notice