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WARNING FOR YOUR OWN SAFETY, PLEASE READ THIS USER MANUAL CAREFULLY BEFORE YOUR INITIAL START-UP! CAUTION! Keep this equipment away from rain, moisture and liquids.
IMPORTANT: The manufacturer will not accept liability for any resulting damages caused by the non-observance of this manual or any unauthorised modification to the equipment. • Never let the power-cable come into contact with other cables. Handle the power-cable and all mains voltage connections with particular caution! • Never remove warning or informative labels from the equipment. • Do not open the equipment and do not modify the equipment.
This 100V line mixer amplifier was designed specifically for use in permanent audio installations, where reliability and premium sound quality are a must. Highly rugged construction and high efficiency design make this amplifier perfect for continuous duty applications in situations were power will be left on for indefinite periods of time. This 100V line amplifier is warranted from defects for one year from the date of purchase.
Identification: 1. POWER - Power indicator 2. POWER SWITCH - To switch the unit on/off 3. COOLING VENTS - Do not block, keep clean and clear of obstructions. 4. BASS - Adjust bass response. Rotate clockwise to increase bass output and anticlockwise to reduce it. 5. TREBLE - Adjust treble response. Rotate clockwise to increase treble output and anticlockwise to reduce it. 6. MIC1 / MIC2 - MIC volume control (MIC1/MIC2) 7. LINE1 / LINE2 - Line volume control (LINE 1/LINE 2) 8.
Rack Installation The MA Series are rack mountable. The rack you use should be a Double Door Rack where you can open the front and rear panel. When mounting the amplifier into the rack, please make sure that there is enough space around the amplifier. Be careful when mounting the amplifier into the rack. Put the heaviest products into the lower part of the rack. The front panel is not designed to absorb acceleration forces occuring during transportation.
MACHINE OPERATION 1. After connecting all audio sources and powering on the mixer amplifier, adjust the level of each audio input to achieve the desired “mix”. Care should be taken to when adjusting microphone input volumes and the master volume, adjust both of these in small increment’s to avoid feedback (howl around). The goal is to achieve a clear balance between music and voice ensuring announcements can be clearly heard. 2.
Panel Connections: MIC 1 MAINS AUDIO SOURCE AUDIO SOURCE 7 MIC 2
Speaker connections: Total impedance 163Ω (MA 130) 82Ω (MA-160) Total impedance 333Ω (MA 130) 167Ω (MA-160) Notes: • Both the 4 - 16Ω and 100V terminals cannot be used at the same time. • Impedances indicated in the figures represent the total speaker system (load) impedances. Loads presented to the amplifier must be equal to or greater than listed above. Speaker impedances must be measured using a true impedance meter, do not standard multimeters.
Balanced XLR Jack Connection 9
Problem Chart PROBLEM CAUSE REMEDY No Power The power cord is not connected Check the power cord and any extension cables No Sound The power cord of the respective product is not connected properly or not at all. Check the power cord and if the plugs are properly connected with the sockets. The connection socket or the plug is dirty. Clean the socket and/or the plug. Noise The input signal is too strong Reduce the input signal via the gain control.
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