1. Manuals
  2. Brands
  3. Atlas Manuals
  4. Amplifier
  5. AA120M
  6. Owner's manual

Atlas AA120M Owner's Manual

Atlas sound owner's manual mixer amplifier aa120m
Hide thumbs Also See for AA120M:
Table of Contents

Advertisement

Quick Links

OWNER'S MANUAL
AA120M MIXER AMPLIFIER
Signal
Peak
Power
Input 1
Input 2
Input 3
Input 4
Input 5
Input 6
Power
On
Off
Master
Bass
Treble
AA120M Atlas Sound Mixer Amplifi er
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. •
TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
©2006 ATLAS SOUND LP
Printed in U.S.A.
00106
ATS002179 RevA 01/06
PP

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the AA120M and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Atlas AA120M

Summary of Contents for Atlas AA120M

  • Page 1 Input 6 Power Master Bass Treble AA120M Atlas Sound Mixer Amplifi er Specifications are subject to change without notice AtlasSound.com 1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435 ©2006 ATLAS SOUND LP Printed in U.S.A.

  • Page 2: Table Of Contents

    AA120M MIXER AMPLIFIER TABLE OF CONTENTS Safety Instructions…………………………………………………………………………………………………..2 Introduction, Features, and Applications………………………………………………………………………….3 Safety Precautions………………………...……………………..4 Front Panel Description…………………………………………………………………………………………….6 Rear Panel Description…………………………………………………………………………………………….7 Quick Start Examples...…………………………………..……..15 Wiring the AA120M…………...……………………..…21 Rack Mount Kit…...…………...……………………..…22 Internal Jumper Locations………………………………………………………………………………………...23 Block Diagram...………...…………………………………..…...24 Specifi cations...……………………………………27 Warranty...……………………………………..28 SAFETY INSTRUCTIONS Please be sure to read all the instructions carefully before using this product.

  • Page 3: Introduction, Features, And Applications

    Congratulations and thank you for purchasing the Atlas Sound Model AA120M professional grade mixer/ amplifi er. An integral part of the AA Series of commercial products, the AA120M was engineered and integrated with unique features to assist the contractor/installer in today’s commercial business audio environment.

  • Page 4: Safety Precautions

    Should any of the following irregularities occur during use, immediately switch off the power, disconnect the power cord from the AC outlet and contact Atlas Sound. Do not to attempt to continue operation with the product as this may cause fi re or electric shock.
  • Page 5 fi re. • Contact Atlas Sound for instructions on cleaning the inside of the unit. Large accumulations of dust inside the unit may result in heat buildup and fi re.

  • Page 6: Front Panel Description

    This LED illuminates when the power switch is turned on. 3. Peak LED The PEAK LED will illuminate when the AA120M is in a clipping condition, caused by excessively high input levels or a GAIN control is turned up too high. An occasional fl ash is OK.

  • Page 7: Rear Panel Description

    120V AC 60Hz 300W 9. Dipswitch 1-10 Understanding the functionality of the dipswitches is key to getting the most out of the AA120M. Whether a switch is in the "Up" or "Down" position is critical to the function of the amplifi er. Note: Mispositioning any of these switches may cause harm to the speakers or amplifi...
  • Page 8 If you are connecting an unbalanced line level input, tie (short) the (G) and (—) terminals together. An optional Input Isolation Transformer is available if a ground loop problem exists. See page 23 for installation. Contact Atlas Sound for more details on the Input Isolation Transformer.
  • Page 9 This variable control adjusts the sensitivity of INPUT 1. When the dipswitch is set to "Mic" it allows fine tuning of the input gain structure to the AA120M. There is 20dB of variable gain available. This feature is PRE channel level control.
  • Page 10 We suggest you refer to the block diagram of the AA120M to have a complete understanding of the signal flow. Note the following conditions for LINE OUT A.
  • Page 11 See the connection diagram in the setup section of this manual. 23. Pwr In The AMP IN connector is useful for converting the AA120M into a slave amp. When a line level signal is connected to this input, the internal connection between the preamp and internal power amp is broken.
  • Page 12 Internally, there are jumpers to select each input's zone outputs to be PRE or POST input mute assignment. The AA120M Zone 2 and 3 outputs are shipped with the following assignments: Inputs 2, 3, and 4 are POST input mute assignment.
  • Page 13 83Ω 34. Circuit Breaker The circuit breaker is designed to trip and shut down the AA120M "Unswitched Outlet". After correcting the cause of the breaker tripping, reset the breaker by pushing in on the tab. 1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. •...
  • Page 14 120V AC 60Hz 300W 35. Unswitched Outlet The 120VAC outlet is energized at all times when the AA120M power cord is connected to a live duplex outlet. The unswitched outlet provides power for other devices (Atlas rack work light, etc.).

  • Page 15: Quick Start Examples

    AA120M MIXER AMPLIFIER QUICK START EXAMPLES Example 1 - System Paging, BGM, and MOH with Emergency Page Override When a page signal is received from INPUT 2 and the RMT MUTE terminals are shorted, the page will be the only audio heard in the main system because BGM will be muted. If an emergency page comes into INPUT 1, all inputs will be muted except for the emergency page.
  • Page 16 Example 2 - Priority Attenuator Override Application with Message Repeater and BGM This application makes use of the internal relay and 24VDC in conjunction with Atlas Sound optional "PA" override volume controls. A typical scenario would be for a Fire Station, where the background music is turned down by the wall volume controls in the evening.
  • Page 17 Example 3 - Optional Plug-In Module Application The AA120M incorporates a module port that supports a variety of system options. For this example, a plug-in chime module is used to announce a request for building entry. The chime sound would only go to one speaker located over a security guard's area.
  • Page 18 AA120M MIXER AMPLIFIER Example 4 - Remote Level Control Utilizing the optional plug-in modules and the Atlas Sound wall mounted VCA attenuators, we can produce a conference room or hotel ballroom PA system with both remote Master and remote Background Music (BGM) volume controls.
  • Page 19 Example 5 - Hotel Room Combining Using Two AA120Ms This example utilizes the combining feature of the Atlas AA120M mixer amplifiers. The drawing on the following page shows the equipment connections for two hotel ballrooms, separated by a moveable air wall.
  • Page 20 AA120M MIXER AMPLIFIER Example 5 - Hotel Room Combining Using Two AA120Ms Music On/Off Room A Music On/Off Room A Remote Volume Room A Remote Volume Room A 10 10 LEVEL LEVEL Unswitched Breaker Bridge 120V AC 60Hz 125V AC 4A...

  • Page 21: Wiring The Aa120M

    In order to prevent unauthorized operation of the AA120M, optional security covers are available which take the place of the front panel knobs. After the AA120M has been installed and is operating as desired, grasp the front panel knobs and pull straight out from the front panel. Replace the knobs with security covers, Atlas Sound part number AAVCC-5, available in quantities of 5.

  • Page 22: Wiring The Aavcc-10K Vca Potentiometer

    AA120M MIXER AMPLIFIER WIRING THE AAVCC-10K VCA POTENTIOMETER Atlas Sound part number AAVCC-10K consists of a single gang "Decora" style wall plate with a pre- mounted 10k potentiometer and knob. Use two conductor unshielded wire connecting the pot terminals to the terminals marked "VCA" on the back of the amp.

  • Page 23: Internal Jumper Locations

    AA120M. 1. Disconnect the power cord from the wall socket. 2. Remove the screws securing the top cover of the AA120M, and remove the cover. 3. Refer to circuit board layout in the diagram below to locate the jumpers.

  • Page 24: Block Diagram

    AA120M MIXER AMPLIFIER BLOCK DIAGRAM FOR AA120M AC120V 60Hz FUSE POWER SW BREAKER POWER TRANS AC120V AC CHANNEL 1 INPUT XFMR (OPTIONAL) LINE-TEL PHANTOM ZONE LEVEL TRIM CHANNEL 2 LINE PHANTOM PRE MUTE TRIM POST MUTE CH 2 INTERNAL JUMPERS...

  • Page 25: Specifi Cations

    AA120M MIXER AMPLIFIER SPECIFICATIONS POWER OUTPUT Max. Average Power @ 50Hz-20kHz with .5% THD (10-80kHz fi lter) 8 Ohm, 1kHz, 120W RMS TRANSFORMER OUTPUTS 120W RMS 120W RMS 100V 120W RMS FREQUENCY RESPONSE 50Hz-20kHz ±3dB DISTORTION <1% at rated power...
  • Page 26 OWNER'S MANUAL AA120M MIXER AMPLIFIER NOTES: Specifications are subject to change without notice AtlasSound.com 1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435 ©2006 ATLAS SOUND LP Printed in U.S.A. 00106 ATS002179 RevA 01/06...
  • Page 27 OWNER'S MANUAL AA120M MIXER AMPLIFIER NOTES: Specifications are subject to change without notice AtlasSound.com 1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435 ©2006 ATLAS SOUND LP Printed in U.S.A. 00106 ATS002179 RevA 01/06...

  • Page 28: Warranty

    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Atlas Sound does not assume, or does it authorize any other person to assume or extend on its behalf, any other warranty, obligation, or liability. This warranty gives you specifi c legal rights and you may have other rights which vary from state to state.

Table of Contents

Save PDF