MA40G / MA60G Mixer Amplifier Owner’s Manual MA40G Front Silkscreen Artwork MA40G & MA60G Mixer Amplifiers MA60G Front Silkscreen Artwork Power Limit Input 2 Input 2 Input 3 Level Level Level Signal 1601 Jack McKay Blvd Ennis, TX 75119 800.876.3333 Input 3 Input 2 Mute Input 3 Mute L Input 1 Balanced Input Input 1 Phantom Power Input 1 On On On Mic Off Off Off Line AtlasSound.com Remote Mute Power R 0 Limit Signal 40 Watts 70.
MA40G / MA60G Mixer Amplifier Owner’s Manual Table of Contents Important Safety Instructions................................................................................................... 3 Introduction............................................................................................................................... 5 Features.................................................................................................................................... 5 Applications...................
MA40G / MA60G Mixer Amplifier Owner’s Manual 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 ier A35 d 35W ngineered ound HINA ATTENTION ´ RISQUE DE DECHARGE ELECTRIQUE -NE PAS OUVRIR.
MA40G / MA60G Mixer Amplifier Owner’s Manual WARNING – When the Device is in Use 1. To prevent electric shock, do not remove the device cover as there are high voltage components inside. Refer all servicing to Atlas Sound. 2. 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.
MA40G / MA60G Mixer Amplifier Owner’s Manual Introduction Congratulations and thank you for purchasing the Atlas Sound MA40G/MA60G mixer amplifier. This new and innovative professional grade product has been designed from the ground up to include the important features that professional installation personnel require to meet or exceed their customer’s expectations.
MA40G / MA60G Mixer Amplifier Owner’s Manual 4. Input 1 Gain Input 1 level control potentiometer varies the amplitude of the signal fed into the amplifier. Turn clockwise to increase and counter-clockwise to decrease the signal level. 5. Input 2 Gain Input 2 level control potentiometer varies the amplitude of the signal fed into the amplifier. Turn clockwise to increase and counter-clockwise to decrease the signal level. Input 1 Input 2 Input 3 6.
MA40G / MA60G Mixer Amplifier Owner’s Manual 4. Input 3 Input 3 consists of stereo summing inputs, suitable for connection to the output of CD/DVD players, etc. 5. Mute Sensitivity Control VOX Mute Sensitivity Control adjusts how sensitive the mute send circuitry on Input 1 reacts. Setting the control fully counterclockwise will lower the sensitivity, where a higher amplitude signal will be required at Input 1 to trigger the mute send circuits.
MA40G / MA60G Mixer Amplifier Owner’s Manual Limit LED and Load Consideration If the Red Limit LED illuminates, the amplifier has sensed an improper load or the input signal is too high, triggering the protection circuitry. When the load sense Limit circuitry is engaged the amp will operate but at a lower power output. It is s highly recommended to discontinue use immediately and correct the fault condition.
MA40G / MA60G Mixer Amplifier Owner’s Manual Measuring a Speaker System's Impedance Note: It is important to only use an Audio Impedance Meter and not a conventional Volt/Ohm meter. A true audio frequency impedance meter is essential for reliable installation of background music and paging systems in residences, office buildings and public areas. Avoid costly service calls and amplifier damage by verifying actual speaker system impedance prior to operation.
MA40G / MA60G Mixer Amplifier Owner’s Manual Specifications Power Output: MA40G = 40W @ 70.7V (125Ω), 40W @100V (250Ω) MA60G = 60W @ 70.7V (83Ω), 60W @ 100V (166Ω) Frequency Response: 50Hz - 20kHz THD+N: .5% or Less @ 1kHz, Rated Output Sensitivity: Input 1 Mic = .316~3.
MA40G / MA60G Mixer Amplifier Owner’s Manual NOTES 1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A. Telephone: 800.876.3333 • Fax: 800.765.3435 – 11 – Specifications are subject to change without notice. AtlasSound.
MA40G / MA60G Mixer Amplifier Owner’s Manual Limited Warranty 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.
