Turbosound LMS-A6 User Manual
Turbosound LMS-A6 User Manual

Turbosound LMS-A6 User Manual

Loudspeaker management system

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LMS-A6
LOUDSPEAKER
MANAGEMENT SYSTEM
USER'S MANUAL
Turbosound Ltd.
Star Road, Partridge Green
West Sussex RH13 8RY England
Tel: +44 (0)1403 711447 Fax: +44 (0)1403 710155
web: www.turbosound.com

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  • Page 1 LMS-A6 LOUDSPEAKER MANAGEMENT SYSTEM USER’S MANUAL Turbosound Ltd. Star Road, Partridge Green West Sussex RH13 8RY England Tel: +44 (0)1403 711447 Fax: +44 (0)1403 710155 web: www.turbosound.com...
  • Page 2: Table Of Contents

    Introduction ... 5 Features ... 5 Front Panel Functions ... 6 Rear Panel Functions... 7 Setting up and operating the LMS-A6... 8 Internal factory set parameters ... 8 Crossover frequencies and slopes ... 8 Band Gain ... 8 Equalisation ... 8 Mains Supply Voltage ...
  • Page 3: Important Safety Information

    Power Supply Cords, UL 817, be marked VW-1, and have an ampacity rating not less than the marked rating of the apparatus. EN55013-1 (1996) EN55103-2 (1996) RF Immunity, ESD, Burst Transient, Surge, Dips &Dwels EN60065 (1993) CAUTION DO NOT OPEN ATTENTION NE PAS ENLEVER user manual LMS-A6 LMS-A6 user manual Page 3...
  • Page 4: Thanks

    LMS-A6 THANKS Thank you for choosing the TURBOSOUND LMS-A6 for your application. Please spare a little time to digest the contents of this manual, so that you obtain the best possible performance from this unit. All TURBOSOUND products are carefully engineered for world class performance and reliability.
  • Page 5: Introduction

    The LMS-A6 can be configured for the following modes of operation: stereo 3-way, stereo 2-way, mono 4-way, plus mono 2-way. The standard filter provided for the LMS-A6 is a Linkwitz Riley response based on two second order Butterworth circuits in series. The response is 24dB/octave slope with a corner frequency where the output of the filter is 6dB down from its pass band level.
  • Page 6: Front Panel Functions

    Standy Mute – red LED indicates when the standby mute mode is set. Standy Mute Standy Mute 13. Limiter Cancel Limiter Cancel – indicates when the limiter cancel mode is set. Limiter Cancel Limiter Cancel LMS-A6 user manual Page 6 2 4 5 11 12...
  • Page 7: Rear Panel Functions

    XLR Inputs – 3 pin female XLR connectors are provided for each audio input. All terminations XLR Inputs XLR Inputs are fully balanced, pin 2 Hot, pin 3 Cold and pin 1 Screen (shield). user manual LMS-A6 LMS-A6 user manual Page 7...
  • Page 8: Setting Up And Operating The Lms-A6

    Check the supplied documentation to ensure these parameters are correct for the particular system you are setting up. Incorrect settings can damage the loudspeakers, especially the more delicate H.F. unit. If any internal settings are wrong for your system contact your Turbosound Dealer about obtaining the correct custom plug-in modules.
  • Page 9: Connecting Inputs And Outputs

    The power supply section includes an IEC connector, ON/OFF switch and an AC fuse. Check that the voltage label corresponds with your local mains supply and that the correct AC fuse is fitted. If it does not, contact your Turbosound Dealer for instructions on setting the LMS-A6 to the correct voltage.
  • Page 10: Power On Standby Mode

    LMS-A6 Power On Standby Mode When power is first switched on the LMS-A6 enters STANDBY mode. In this mode all outputs are muted to suppress any noise or transients while the circuitry settles down. The POWER STDBY switch determines how the unit will behave after power is applied.: Switch down: The unit will stay in standby mode.
  • Page 11: Level Trims

    In a high powered system where the amplifier output power is below or equal to the rating of the speakers the limiter thresholds will nominally be set to 1dB below the clipping level of the amplifier. This prevents severe clipping from driving the cones with square waves but does not LMS-A6 user manual Page 11...
  • Page 12: Limiter Cancel

    Note that the MUTE LED will always follow the position of the MUTE switch regardless of the status of the standby mute. If the expected output signal appears to be muted but the MUTE LED is not lit then check the STANDBY MUTE LED LMS-A6 user manual Page 12...
  • Page 13: Technical Specifications

    Net weight 3.9kg (8.6lbs) Size Size Size Size 1.75"(1U) x 19" x 9.9" (44mm x 482mm x 252mm) excl. connectors. Due to continuing product improvement the above specifications are subject to change. user manual LMS-A6 LMS-A6 user manual Page 13...
  • Page 14: Warranty

    This product is warranted against defects in components and workmanship only, for a period of one year from the date of shipment to the end user. During the warranty period, TURBOSOUND will, at its discretion, either repair or replace products which prove to be defective, provided that the product is returned, shipping prepaid, to an authorised TURBOSOUND service facility.
  • Page 15 Turbosound Ltd Star Road, Partridge Green West Sussex RH13 8RY England Tel:+44 (0)1403 711447 Fax: +44 (0)1403 710155 web: www.turbosound.com...

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