Owner’s Manual AA240 Mixer Amplifier AA240 Atlas Sound Mixer Amplifier 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 –1– Specifications are subject to change without notice. AtlasSound.
AA240 Mixer Amplifier Owner’s Manual Table of Contents Table of Contents................................................................................................................................................................. 2 Important Safety Instructions............................................................................................................................................. 3 Introduction, Features, and Applications.............................................................
fier A35 d 35W Engineered ound HINA Owner’s Manual AA240 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. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN ATTENTION ´ RISQUE DE DECHARGE ELECTRIQUE -NE PAS OUVRIR.
AA240 Mixer Amplifier Owner’s Manual CAUTION – When Installing the Product • Plugging in or unplugging the power cord with wet hands may result in electric shock. • Never move the device 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 device in humid or dusty locations, nor in direct sunlight, near sources of heat, or in areas where sooty smoke or steam are present.
Owner’s Manual AA240 Mixer Amplifier WARNING – When the Device is in Use • To prevent electric shock, do not remove the device cover as there are high voltage components inside. Refer all servicing to Atlas Sound. • 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.
AA240 Mixer Amplifier Owner’s Manual Introduction Congratulations and thank you for purchasing the Atlas Sound Model AA240 professional grade mixer / amplifier. An integral part of the Strategy Series of commercial products, the AA240 was engineered and integrated with unique features to assist the contractor / installer in today’s commercial business audio environment. Features • Zone 1 Output 240 Watts • Zone 2 Output 1 Watt @ 8Ω or 1.
Owner’s Manual AA240 Mixer Amplifier Front Panel Description Signal 10 0 10 0 Input 1 10 0 Input 3 Input 2 10 0 Input 4 10 0 Input 5 Input 6 + Power Power 10 Master Bass Limit 10 0 0 – Peak On Off + – Treble 1. Power Switch This push on / push off switch applies power to the AA240. 2. Power LED This LED will illuminate blue when the AA240 is turned on. 3.
10 put 6 Power AA240 Mixer Amplifier 0 Signal Outlet Breaker 125V ~ 4A Push Reset 10 0 Input 5 Bridge G 10 0 Input 6 On Off 10 Master Rear Panel Description Unswitched Outlet 120V ~ 60Hz Max 500W Owner’s Manual In/Out 4Ω 25V 70V Zone 2 Out Sel Remote VCA Mute 1W 8Ω 600Ω + Pre Out Speaker Output 240W Com + Zone 2 Level + Line Out Tape Out Input 5 Trim Input 4 Trim Input 6 A R B L Input 3 Trim 3 4 5 6 7 Input 4 Input 3 Input 2 Input 1 Phantom VCA Line Line
Owner’s Manual Unswitched Outlet 120V ~ 60Hz Max 500W AA240 Mixer Amplifier Outlet Breaker 125V ~ 4A Push Reset Bridge G In/Out 4Ω 25V 70V Zone 2 Out Sel Remote VCA Mute 1W 8Ω 600Ω + Pre Out Speaker Output 240W Com + Zone 2 Level + Line Out Tape Out Input 5 Trim Input 4 Trim Input 6 A R B L Input 3 Trim Input 1 Sens Input 1 Trim Input 2 Trim 1 2 3 4 5 6 7 Input 5 Input 4 Input 3 Input 2 Input 1 Phantom VCA Line Line Line Line Tel/Line Off Master Off Off M
Input 6 AA240 Mixer Amplifier Owner’s Manual Power 0 On Off 10 Master Unswitched Outlet 120V ~ 60Hz Max 500W Outlet Breaker 125V ~ 4A Push Reset Bridge G In/Out + Zone 2 Out + Pre Out Speaker Output 240W Com 4Ω 25V 70V Remote VCA Mute 1W 8Ω 600Ω Sel Zone 2 Level + Line Out Tape Out Input 5 Trim Input 4 Trim Input 6 A R B L Input 3 Trim Input 1 Sens Input 1 Trim Input 2 Trim 1 2 3 4 5 6 7 Input 5 Input 4 Input 3 Input 2 Input 1 Phantom VCA Line Line Line
Owner’s Manual Unswitched Outlet 120V ~ 60Hz Max 500W AA240 Mixer Amplifier Outlet Breaker 125V ~ 4A Push Reset Bridge G In/Out 4Ω 25V 70V Zone 2 Out Sel Remote VCA Mute 1W 8Ω 600Ω + Pre Out Speaker Output 240W Com + Zone 2 Level + Line Out Tape Out Input 5 Trim Input 4 Trim Input 6 A R B L Input 3 Trim Input 1 Sens Input 1 Trim Input 2 Trim 1 2 3 4 5 6 7 Input 5 Input 4 Input 3 Input 2 Input 1 Phantom VCA Line Line Line Line Tel/Line Off Master Off Off M
AA240 Mixer Amplifier Owner’s Manual Quick Start Examples Example 1 — System Paging, BGM, and MOH with Remote Master Level Control his application has the paging microphone into INPUT 1, BGM (CD player) into Input 2, and a Message Repeater or MOH into Input 6. T The Zone 2 Output is sent to the telephone system's MOH input port. A level control is placed in another area such as a front desk to adjust the system’s level without having to go the equipment room.
Owner’s Manual AA240 Mixer Amplifier Example 2 — Hotel Room Combining Using Two AA240s This example utilizes the combining feature of the Atlas AA240 mixer amplifiers. The drawing below shows the equipment connections for two hotel ballrooms, separated by a moveable air wall. The hotel needs to be able to have the audio system operate as one large unit (air wall open) or two discreet systems (air wall closed).
AA240 Mixer Amplifier Owner’s Manual Example 3 — Small House of Worship The diagram below shows a typical small House of Worship audio system. This system utilizes four microphones, one for the pulpit and three on the choir. A Master cap volume control (Atlas Sound AAVC-10K) is connected to the “VCA” terminals for overall level control.
Owner’s Manual AA240 Mixer Amplifier Wiring the AA240 Speaker Outputs - Use 2 conductor unshielded wire of the appropriate gauge. If you are unsure about this, contact Atlas Sound Tech Support at 1-800-876-3333. Make sure you know how many speakers you need and what tap value you intend to use. Mic/Line Input - Use 2 conductor w/ shield for low level signals of 20–22-gauge is best. Maintain the proper polarity, + to +, – to –, and shield to ground.
AA240 Mixer Amplifier Owner’s Manual Measuring Speaker Loads Below is an ipedance load chart for the AA240. When measuring the load impedance prior to connecting the load to the amplifier, the enclosed load chart will provide you the information to determine if the load or speaker system impedance is too low for the amplifier's rating. In every install it is always recommended to measure the load first to be sure the system was installed correctly. AA240 Max Load Chart Speaker Tap AA240 4Ω 4Ω 25V 2.
Owner’s Manual AA240 Mixer Amplifier Security Covers Option In order to prevent unauthorized operation of the AA240, optional security covers are available which take the place of the front panel knobs. After the AA240 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.
AA240 Mixer Amplifier Owner’s Manual AA240 Block Diagram 1 2 3 4 5 6 7 8 Input 6 Input 5 Input 4 Input 3 Input 2 Input 1 Phantom VCA Sens 100mV Line Line Line Line Tel/Line Off Master 300mV Mic Mic Mic Mic Mic On Input 6 1 2 3 4 5 6 7 8 1 2 3 4 5 6 1 2 3 4 5 Low Cut Input 6 Input 5 Input 4 Input 3 Input 2 Mute Rcv Off Off Off Off Off Off On On On On On On 6 A TAPE OUT B + MUTE SENS CHANNEL 1 INPUT XFMR (OPTIONAL) + - LINE-TEL MIC PHANTOM PRE IN 1 LEVEL PRE PRE BASS TRIM CHANNEL 2
Owner’s Manual AA240 Mixer Amplifier Optional Input Transformer Installation Contact Atlas Sound at 1-800-876-3333 for price and availability. INPUT 1 OPTIONAL TRANSFORMER SOCKET XFMER BYPASS XFMER IN XFMER BYPASS XFMER IN INPUT 1 TRANSFORMER JUMPERS (p/n AAIT-600) 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 19 – Specifications are subject to change without notice. AtlasSound.
AA240 Mixer Amplifier Owner’s Manual Specifications Power Output Max. Average Power @ 50Hz-20kHz with .5% THD (10-80kHz filter) 4Ω, 1kHz, 240W RMS Transformer Outputs 25V 70.7V 100V AA240 AA240 AA240 240W RMS 240W RMS 240W RMS Frequency Response 50Hz – 20kHz Distortion <1% at rated power (1kHz) Sensitivity Input 1 Line/Tel Mic Inputs 2-5 Line Mic Input 6 Line Outputs 316mV (-10dBV) 10kΩ (600Ω with optional transformer) .316mV~3.16mV (-50dBV~ -70dBV) 316mV (-10dBV) 10kΩ .316mV~3.
Owner’s Manual AA240 Mixer Amplifier Notes 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 21 – Specifications are subject to change without notice. AtlasSound.
AA240 Mixer Amplifier Owner’s Manual Notes 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 AtlasSound.com – 22 – Specifications are subject to change without notice.
Owner’s Manual AA240 Mixer Amplifier Notes 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 23 – Specifications are subject to change without notice. AtlasSound.
AA240 Mixer Amplifier Owner’s Manual All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or commercial purchaser to be free from defects in material and workmanship and to be in compliance with our published specifications, if any.
