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The Martin Experience

MA1.4

High Performance Amplifier

User Guide

All material © 2010. Martin Audio Ltd. Subject to change without notice.

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Summary of Contents for MA1.4

Page 1: ...The Martin Experience MA1 4 High Performance Amplifier User Guide All material 2010 Martin Audio Ltd Subject to change without notice...

Page 2: ...onnecting Inputs 8 1 6 Connecting Outputs 9 2 Setup and settings 10 2 1 Introduction 10 2 2 The LED indicators 11 3 Protection 12 3 2 Short circuit protection 12 3 3 Thermal protection 12 3 4 DC fault...

Page 3: ...t Body Directive 89 336 EEC EMC pursuant to the product family standard for audio professional use EN 55103 1 and EN 55103 2 standard EN61000 3 2 EN 61000 3 3 In a domestic environment this product ma...

Page 4: ...l damages caused to persons things or data for the missing of accurate earth link Before powering this device verify that the amplifier is supplied with the correct voltage rating Verify that your mai...

Page 5: ...tput shock hazard A Martin Audio amplifier is capable of producing hazardous output voltages To avoid electrical shock do not touch any exposed speaker wiring while the amplifier is operating This man...

Page 6: ...maximum level conventional amplifiers can easily generate 10 times more heat than MA1 4 amplifiers for the same volume of sound Superior Sound Sonic Accuracy Crystal clear highs and a tight well defi...

Page 7: ...MA1 4 series amplifiers feature an intelligent variable speed DC fan which is controlled by heat sink temperature sensing circuits the fan speed will increase only when the temperature of either heat...

Page 8: ...t intermittent problems are caused by faulty cables Use good quality connectors and cable along with good soldering technique to ensure trouble free reliability 1 4 AC Main connection Warning before c...

Page 9: ...he figure below shows the connection of analog input for balanced and unbalanced line You can use either configuration but you must consider that unbalanced long lines can introduce noise in the audio...

Page 10: ...f Speakon connector are paralleled internally and have to be considered as the positive output of the channel likewise the 1 and 2 pins of Speakon connector are also paralleled internally and should b...

Page 11: ...ht shows the front panel of the MA1 4 Amplifier The front panel controls and indicators give the user total control and detailed information about the status of the amplifier The gain control uses a l...

Page 12: ...onding channel The signal 18dB and 6dB LEDs operate as V meter and the signal LED is illuminated when the signal is present in the input stage of the correspondent channel The ready LED when illuminat...

Page 13: ...fan to assist cooling the fan speed changes in response to the amplifier s cooling requirements If the heatsink temperature reaches approximately 75 C the TEMP LED illuminates and the output power is...

Page 14: ...ts in your MA1 4 amplifier Refer servicing to qualified technical personnel If your MA1 4 amplifier needs repair contact your Martin Audio dealer or distributor 4 3 Dust removal Particularly in dusty...

Page 15: ...product is returned in its original packaging shipping prepaid to an authorised Martin Audio service agent or distributor Martin Audio Ltd cannot be held responsible for defects caused by unauthorise...

Page 16: ...All material 2010 Martin Audio Ltd Subject to change without notice 15 7 Technical notes 7 1 Block diagram The diagram below shows the amplifier block diagram 1 Channel shown...

Page 17: ...ged 1 x 720 4 stereo 2 x 700 1 1 2 3 175 219 79 269 68 8 bridged 1 x 1400 2 stereo N A N A N A N A N A N A N A N A 4 bridged N A Pink Noise 1 4 rated power 8 Stereo 2 x 360 1 2 2 3 180 225 80 273 69 1...

Page 18: ...dulation SMPTE 0 5 from 1W to full power Intermodulation DIM 30 0 5 from 1W to full power Inputs Balanced to ground XLR female with parallel Male XLR Impedance 10KOhm each leg balanced to ground Gain...

Page 19: ...All material 2010 Martin Audio Ltd Subject to change without notice 18 7 4 Technical Drawing...

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