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Summary of Contents for Atlas AA400PHD
- Page 1 AA400PHD Owner’s Manual 400W Mixer Amplifier AA400PHD 400W Mixer Amplifier 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 1 – AtlasSound.com Specifications are subject to change without notice.
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Page 2: Table Of Contents
Trouble Shooting the Fault LED ......................13 How to Calculate Load Impedance ....................... 13 Remote Level Control ..........................15 Remote Input Select (RIS) ........................16 Wiring the AA400PHD ...........................17 Level Control Security Cover Option .....................17 Block Diagram ............................18 Specifications ............................19 Warranty .............................. -
Page 3: Important Safety Instructions
AA400PHD Owner’s Manual 400W Mixer Amplifier Important Safety Instructions 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. - Page 4 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 fire or electric shock: •...
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Page 5: Introduction
Small, compact, and engineered for reliability, the Atlas Sound AA400PHD will provide years of service and flexibility in today’s background music and paging applications. - Page 6 AA400PHD Owner’s Manual 400W Mixer Amplifier Front Panel 1. Power Switch This push switch (On/Off) supplies power to the mixer amplifier. 2. Power Indicator This LED illuminates Blue when the power switch is turned On. 3. Signal Indicator When the signal LED illuminates Green, input signals are connected to the amplifier. The Signal LED is PRE the input level controls.
- Page 7 AA400PHD Owner’s Manual 400W Mixer Amplifier Front Panel 7. Input 1-6 Level The rotary control varies the amplitude of the signal fed to the amplifier input. Turn clockwise to increase and counter-clockwise to decrease the signal level. 8. Master Level The Master Level control will raise or lower all the input channels together.
- Page 8 AA400PHD Owner’s Manual 400W Mixer Amplifier Rear Panel 5. VOX Mute Sensitivity Control Input 1 signal can be used to trigger or activate a mute command. When an input is set to Mute Receive via the corresponding DIP switch, the input associated to the switch will be muted when a signal is applied to Input 1. The VOX Mute Sensitivity Control adjusts how sensitive the mute circuitry from Input 1 reacts.
- Page 9 AA400PHD Owner’s Manual 400W Mixer Amplifier hannel 4 - Input Channel 3 - Input Channel 2 - Input Rear Panel 10. Multi Function DIP Switch Inputs 2 & 3 Understanding the functionality of the DIP switches is key to maximizing the versatility of the AAPHD Series. When a switch is in the L + R Sum up position, the function is “OFF or assigned to the feature stated”;...
- Page 10 AA400PHD Owner’s Manual 400W Mixer Amplifier hannel 4 - Input Channel 3 - Input Channel 2 - Input Rear Panel 13. Multi Function DIP Switch Input 4 Understanding the functionality of the DIP switches is key to maximizing the versatility of the AAPHD Series. When a switch is in the up position, the function is “OFF or assigned to the feature stated”;...
- Page 11 Inputs 4, 5, & 6 can be remotely activated or selected. When any of the RIS input control port pins are shorted to ground, the signal from that input selected will be routed to the amplifier main mix bus. The RIS control port was designed to work with the Atlas Sound WPD-RISRL accessory item.
- Page 12 AA400PHD Owner’s Manual 400W Mixer Amplifier Using the PHD Mixer Amplifier Diagnostic System The AAPHD Series features a patent pending Amplifier Self Diagnostic System. The PHD (Push Here Diagnostic) is simple to use and is very effective running a 70V distributed system diagnostic test to assure the amplifier has the proper load applied. The proper load will assure a long lasting trouble free audio experience with your new AAPHD Series amplifier.
- Page 13 AA400PHD Owner’s Manual 400W Mixer Amplifier How To Trouble Shoot Your Speaker System If The Limit LED Is Illuminating LED OFF TEST PASS The Limit LED should never be constantly illuminated or damage may occur to the amplifier or sound system. If the Limit LED comes on steadily during use or during the PHD test there are a few common fault conditions to check if using a 70V distributed audio system.
- Page 14 AA400PHD Owner’s Manual 400W Mixer Amplifier How To Trouble Shoot Your Speaker System If The Limit LED Is Illuminating C. If the first two check points are OK, there is probably a short in the wiring of the speaker system. Common causes include staples through the wire and the wire cut by metal conduit causing a short to ground.
- Page 15 AA400PHD Owner’s Manual 400W Mixer Amplifier Connecting a Remote Level Control with Remote Input Select (RIS) Remote location of a level control can be accomplished via the Remote Level control port. You can control Input 2 or Inputs 4, 5, and 6.
- Page 16 This is ideal because the result is clean audio with no chance of picking up interference. It is intended to be used with the optional wall controller WPD-RISRL from Atlas Sound. The WPD-RISRL allows selection of three inputs (not Input 1) with ability to adjust the level for each input selected.
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Page 17: Level Control Security Cover Option
After the amp has been installed and is operating as desired, grasp the front panel knobs and pull straight out Inputs Remote Input 4,5,6 Select (RIS) from the front panel. Replace the knobs with security covers, Atlas Sound part number AAVCC-5, available in quantities of 5. – Bass Treble Level 10V 6 5 4 GND G –... -
Page 18: Block Diagram
AA400PHD Owner’s Manual 400W Mixer Amplifier Block Diagram 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 AtlasSound.com – 18 –... - Page 19 AA400PHD Owner’s Manual 400W Mixer Amplifier AA400PHD Specifications Type Mixer Amplifier RoHS Compliant Safety Listings ETL (UL 60065 Standard) Electrical Specifications Power Output Max. Average Power @ 50Hz-15kHz with .5% THD, 4Ω 400W RMS Transformer Outputs 400W RMS 70.7V 400W RMS 4Ω...
- Page 20 AA400PHD Owner’s Manual 400W Mixer Amplifier AA400PHD Specifications Outputs Main Transformer Coupled, Balanced, 4Ω, 25V, and 70.7V. Class 2 Rated, Removable 4 Position PHX 5.08mm Pitch, Accepts up to 12 Gauge Wire, 12A Rating Zone 2 Unbalanced 600Ω / 10kΩ, Max 1.0V Out, Removable 2 Position PHX 3.5mm Pitch, Accepts Up to...
- Page 21 AA400PHD Owner’s Manual 400W Mixer Amplifier Notes: 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 21 – AtlasSound.com Specifications are subject to change without notice.
- Page 22 AA400PHD Owner’s Manual 400W Mixer Amplifier Notes: 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 AtlasSound.com – 22 –...
- Page 23 AA400PHD Owner’s Manual 400W Mixer Amplifier Notes: 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 23 – AtlasSound.com Specifications are subject to change without notice.
- Page 24 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 specific legal rights and you may have other rights which vary from state to state.
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