Martin Audio MA2.0 - V1.1 User Manual

Martin Audio MA2.0 - V1.1 User Manual

High performance amplifier

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MA2.0
High Performance Amplifier

User Guide

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

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Summary of Contents for Martin Audio MA2.0 - V1.1

  • Page 1: User Guide

    MA2.0 High Performance Amplifier User Guide The Martin Experience All material © 2010. Martin Audio Ltd. Subject to change without notice.
  • Page 2: Table Of Contents

    Service ....................13 Dust removal..................13 5 Warranty ....................14 7 Technical notes ..................15 Block diagram ..................15 Thermal Dissipation ................16 Specification ..................17 Technical Drawing ................. 18 All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 3: Important Safety Instructions

    This equipment has been tested and found to comply by Notified Body (Directive 2006/95/EEC L.V) pursuant to the audio apparatus safety requirements: Standard EN 60065. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 4: Warning Notices

    It is the user's responsibility to use suitable speakers with the amplifier and to use them in a sensible way that will not cause damage. Martin Audio will not be responsible for damaged speakers. Consult the speaker manufacturer for power- handling recommendations.
  • Page 5 Speaker output 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 manual contains important information on operating your Martin Audio amplifier correctly and safety.
  • Page 6 Introduction The totally new Martin Audio MA2.0 amplifier technology has changed the way the world looks at professional audio amplification. No other amplifiers come close for applications demanding high power and long term reliability. Thanks to amazing reductions in heat output along with reductions in weight and the specific high output power, MA2.0 amplifiers can be used in an unlimited range of applications such as...
  • Page 7: Installation And Operation

    Carefully open the shipping carton and check for any noticeable damage. Every Martin Audio amplifier is completely tested and inspected before leaving the factory and should arrive in perfect condition. If you find any damage, notify the shipping company immediately. Be sure to save the carton and all packing materials for the carrier's inspection.
  • Page 8: Operating Precautions

    The system allows performance to be maintained even in circumstances of varying the mains voltage. Is important to connect the ground for safety, do not use adapters that disable the ground connection. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 9: Connecting Inputs

    The Link switch located in the rear panel is for direct paralleling the rear input connectors. You can use the remaining input connector to carry signal to other amps. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 10: Connecting Outputs

    This is significant for signals below 100Hz (sub bass etc.) and improves the power bandwidth. Be sure to use balanced inputs on all measurement equipment (including oscilloscope probes) if you are bench testing. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 11: Setup And Settings

    The gain ∞ control uses a logarithmic scale from - +32dB. Read the instructions below carefully which will explain the many functions of the amplifier. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 12: The Led Indicators

    "ready" LED, when illuminated, indicates that the start-up time after power-on is finished and the amplifier is ready to use. The "temp" LED, when lit, indicates that the output stage of the corresponding channel is reducing the output power due to an over-heated state. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 13: Protection

    MA2.0. Input / Output protection An ultrasonic network decouples RF from the outputs and keeps the amplifier stable with reactive loads. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 14: User Maintenance

    Service There are no user-serviceable parts in your MA2.0 amplifier. Refer servicing to qualified technical personnel. If your MA2.0 amplifier needs repair, contact your Martin Audio dealer or distributor. Dust removal Particularly in dusty environments, the front filters clog with dust and dirt after prolonged use, this will interfere with cooling.
  • Page 15: Warranty

    3 (three) years from the date of original purchase. During the warranty period Martin Audio will, at its discretion, either repair or replace products which prove to be defective provided that the product is returned in its original packaging, shipping prepaid, to an authorised Martin Audio service agent or distributor.
  • Page 16: Technical Notes

    Technical notes Block diagram The diagram below shows the amplifier block diagram (1 Channel shown). All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 17: Thermal Dissipation

    12 all amplifier circuitry must include a “bleed” resistor across the incoming AC mains power to discharge residual current to prevent the risk of shock from an amplifier disconnected from the mains. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 18: Specification

    Over-temperature forecasting, thermal protection, short circuit protection, overload output protection, temperature controlled air cooling system, clip limiter and permanent signal limiter, auto-reset system, parallel inputs switch, input signal presence LED. All material © 2010 Martin Audio Ltd. Subject to change without notice...
  • Page 19: Technical Drawing

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

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Ma2.0

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