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Mackie M-2600 Owner's Manual
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Mackie M-2600 Owner's Manual

Fr series fast recovery high-current power amplifier
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M•2600
OWNER'S MANUAL
™
HIGH-CURRENT POWER AMPLIFIER

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Summary of Contents for Mackie M-2600

  • Page 1 M•2600 OWNER’S MANUAL ™ HIGH-CURRENT POWER AMPLIFIER...

  • Page 2: Safety Instructions

    2. Retain Instructions — The safety and operating instructions should be kept for future reference. 3. Heed Warnings — All warnings on this Mackie product and in these operating instructions should be followed. 4. Follow Instructions — All operating and other instructions should be followed.

  • Page 3: Introduction

    • Ultra low noise and distortion • Fast Recovery design • Five year warranty At Mackie, we know what it takes to be roadworthy. After all, our mixers have traveled all over the world under the worst of conditions, and we’ve applied what we’ve learned to the mechanical design of our amplifiers.

  • Page 4: Quick Start

    READ THIS PAGE! QUICK START I got ants in my pants and I got to dance! INSTALLATION The M•2600 amplifier must only be installed in a rack. See page 29 for spe- cial details regarding rack mounting and thermal considerations. DO NOT BLOCK THE VENTILATION PORTS The M•2600 draws its ventilation air in from the front and out through the side panels.
  • Page 5 7. In BRIDGED mode, connect an input cable to CHANNEL 1’s INPUT or CHANNEL 2. If you want to use both inputs, the two input signals are summed internally to produce a mono signal. 8. In STEREO and MONO modes, connect speaker cables to the SPEAKER OUTPUTS , using either the binding post or Speakon®...

  • Page 6: How To Use This Manual

    HOW TO USE THIS MANUAL APPLICATION DIAGRAMS Mackie’s chain gang of illustrators have created easy-to-understand diagrams of popular studio and live-sound setups. Your setup will probably be different in some way, but these diagrams will help you see the big picture so you can add your own finishing touches.

  • Page 7: Table Of Contents

    CONTENTS SAFETY INSTRUCTIONS ... 2 INTRODUCTION ... 3 QUICK START ... 4 HOW TO USE THIS MANUAL ... 6 APPLICATION DIAGRAMS ... 8 FEATURE DESCRIPTIONS ... 17 GAIN ... 17 METERS ... 18 SIG ... 19 PROTECT ... 19 SHORT... 19 TEMP STATUS ...

  • Page 8: Application Diagrams

    APPLICATION DIAGRAMS The following pages show some of the more common uses for the M•2600, including stereo, mono, and bridged operation. USING THE LOW CUT FILTER The application diagrams include some small graphs of the frequency range going into and coming out of the amplifier. These graphs show the effect of the LOW CUT FILTER to roll off the lower frequencies going to the speakers.
  • Page 9 TWO M•2600 : MAIN SPEAKERS AND STAGE MONITORS...
  • Page 10 M•2600: MAIN SPEAKERS AND STAGE MONITORS WITH ONE AMPLIFIER...
  • Page 11 M•2600: EIGHT MONITOR SPEAKERS-MONO MODE...
  • Page 12 M•2600: STEREO SYSTEM WITH TWO AMPLIFIERS IN BRIDGED MODE...
  • Page 13 USING THE CROSSOVER The following three pages show how the internal crossover can be used to biamp your system. One amplifer plays the lower frequen- cies, while another plays the highs. The electronic crossover inside the M•2600 splits the frequency band into two ranges, one below the crossover point (LOW OUT) and one above (HIGH OUT).
  • Page 14 M•2600: STEREO SYSTEM BIAMPED WITH SUBWOOFERS, OPTION 1...
  • Page 15 M•2600: STEREO SYSTEM BIAMPED WITH SUBWOOFERS, OPTION 2...
  • Page 16 M•2600: STEREO SYSTEM BIAMPED WITH BRIDGED SUBWOOFER...

  • Page 17: Feature Descriptions

    FEATURE DESCRIPTIONS GAIN These front panel knobs allow you to control the levels going into the output section of the M•2600 amplifier. Their travel is detented, meaning there are 20 built-in “resting points” so you can easily set both controls to the same level. Usually, these controls are set to maximum.

  • Page 18: Meters

    (unless you have a Mackie mixer with low- noise VLZ circuitry!). Conversely, constant sensitivity demands that as the power increases, so must the gain.

  • Page 19: Sig

    M•2600 to engage its PROTECT (when a signal is present), muting all signals at the amp’s outputs. This short-circuit LED is a Mackie exclusive (until the other guys “borrow” the idea) and can save precious minutes of your trouble- shooting time. Without it, you’d still have speaker and amp protection (via the PROTECT circuit), but you wouldn’t be able to determine...

  • Page 20: Temp Status

    Note: When using the amplifier in BRIDGED mode, both SHORT LEDs will light under shorted or low impedance conditions. This is an indication of a problem that requires further investigation. TEMP STATUS TEMP (short for temperature) is another feature designed to keep your mind at ease. Normally the COLD LED is lit, indicating that the M•2600 is working normally.

  • Page 21: Power

    What’s that? Why doesn’t the fan just go fast all the time? Well, if it did, you might actu- ally hear it whirring during your quiet moments (there are quiet moments in your life, aren’t there?). While this whirring would be of no concern in most live-sound situations, it could become annoying in a control room environment.

  • Page 22: Speaker Outputs

    SPEAKER OUTPUTS The binding posts provide a secure and safe connection for bare speaker wire. To use the binding post outputs, unscrew them enough to reveal the holes on their sides, then insert your stripped wires (stripped about 3/8" back) into the holes and retighten the posts (finger tight is fine —...

  • Page 23: Input

    Ordinarily, applying a positive voltage to a speaker’s positive input and negative voltage to the negative input results in an outward excursion of the woofer. But some woofers are built with reverse polarity, meaning that the above conditions result in an inward excursion. If you’re not sure which type of speakers you have, take a look at their literature.

  • Page 24: Thru And Thru Switch

    You can connect an unbalanced XLR cable to the M•2600, although this would be unusual — as unusual as an unbalanced XLR output. However, if you have an unbalanced XLR connection to make, refer to the “Connectors” section (Appendix B) at the back of this manual for more information.

  • Page 25: Crossover Switch

    –5 –10 –15 Frequency, Hz Low Cut Filter Frequency Response In order to match the output bandwidth with your particular speaker system, the M•2600 amplifier has a tunable LOW CUT FILTER. The frequencies are marked along the knob’s travel • Fully counterclockwise, the frequency is below 10Hz, effectively bypassing the filter.

  • Page 26: Stereo

    STEREO mode (separate left and right inputs, separate left and right outputs) is the typical setup for amplifying stereo signals. MONO mode (sometimes called Dual- Mono — one or two inputs, two mono outputs) is for sending a mono signal to two different speaker sets, with separately-adjustable GAIN controls.

  • Page 27: Output Application Switch

    OUTPUT APPLICATION SWITCH The OUTPUT APPLICATION switch should be configured before you turn on the amplifier. This switch allows you to choose between three different configurations: LIMITER ON (TYPICAL). This is the normal configuration: full-bandwidth audio with protective limiting. LIMITER OFF is also full bandwidth audio, but without protective limiting.

  • Page 28: Low Out (Subwoofer)

    LOW OUT (SUBWOOFER) Here’s a special surprise: If you bought the M•2600 amplifier to power a subwoofer system, you just saved yourself the cost of a crossover! The M•2600 amp has an active crossover built in. The amplifier can play the frequencies below the crossover point set with the CROSS- OVER switch –5...

  • Page 29: General Precautions And Considerations

    GENERAL PRECAUTIONS AND CONSIDERATIONS RACK MOUNTING and THERMAL CONSIDERATIONS The M•2600 is a high-power amplifier, and special consideration to ventilation cannot be ignored: • The amplifier must only be installed in a rack. It requires three rack space units (3 U = 5.2"). It also requires 16.7" depth inside the rack, including the rear supports.

  • Page 30: Input Wiring

    (mixing console, equalizer, etc.) and the balanced inputs to the amplifier. If you’re using the unbalanced inputs, use a high-quality 2-conductor shielded cable. Your Mackie Dealer can recommend a suitable cable for your application. If you want to roll your own, refer to the “Connectors”...

  • Page 31: 70V Distribution Systems

    70V DISTRIBUTION SYSTEMS A distributed sound system uses a constant- voltage, high-impedance network that feeds a number of tapped transformers which, in turn, deliver power to individual speakers. Each tap is rated in watts, so you can select the amount of power delivered to the speaker.

  • Page 32: Appendix A: Service Info

    Troubleshooting section. Doing so might save you from being deprived of your Mackie amplifier. Of all Mackie products returned for service (which is hardly any at all), many are coded “CND” — Could Not Duplicate, which usually means the problem lay somewhere else in the system.

  • Page 33: Repair

    This is very important. When you call for the RA number, please let Tech Support know if you need new packaging. Mackie is not responsible for any damage that occurs due to non-factory packaging. 5. Include a legible note stating your name, shipping address (no P.O.

  • Page 34: Appendix B: Connectors

    APPENDIX B: Connectors “XLR” CONNECTORS Mackie amplifiers use 3-pin female “XLR” connectors on each input, with pin 1 wired to the grounded (earthed) shield, pin 2 wired to the “high” (“hot” or positive polarity) side of the audio signal, and pin 3 wired to the “low”...

  • Page 35: Binding Posts

    XLR female connected to an unbalanced 1⁄4" TS phone plug. The balanced-to-unbalanced connection has been anticipated in the wiring of Mackie jacks. A 1⁄4" TS plug inserted into a 1⁄4" TRS balanced input, for example, auto- matically unbalances the input and makes all the right connections.

  • Page 36: Appendix C: Arcane Mysteries Illuminated

    APPENDIX C: Arcane Mysteries Illuminated BALANCED LINES Balanced lines offer increased immunity to external noise (specifically, hum and buzz). Because a balanced system is able to minimize noise, it is the preferred interconnect method, especially in cases where very long lengths of cable are being used.

  • Page 37: Grounding

    10. Walk outside — look at the horizon. See any radio towers? Locate potential sources of RF interference and plan for them before you begin construction. Know the frequency, transmitter power, etc. You can get this information by calling the station. Remember that many broadcast stations change the antenna coverage pattern and transmitter power at night.

  • Page 38: Bi-Amplified And Tri-Amplified Systems

    Power is wasted as heat across the resistors in the crossover, reducing the amount of amplifier power available to the drivers themselves. FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) Passive Crossover System FROM SIGNAL SOURCE...

  • Page 39: Appendix D: Technical Info

    APPENDIX D: Technical Info DO THE MATH: OHMS, LOADS, AND SUCH Remember: As the load gets “heavier,” its value in ohms goes down. For instance, a 2-ohm speaker load is twice as “heavy” as a 4-ohm load. An ohm is a unit of resistance — the more ohms, the more resistance (imped- ance).

  • Page 40: Specifications M•2600

    SPECIFICATIONS M•2600 Maximum Power at 1% THD, midband: 500 watts per channel into 8Ω 850watts per channel into 4Ω 1300 watts per channel into 2Ω 1700 watts into 8Ω bridged 2600 watts into 4Ω bridged Continuous Sine Wave Average Output Power, both channels driven: 425 watts per channel into 8Ω...
  • Page 41 “Mackie,” “The Running Man,” and “FR Series” are trade- marks or registered trademarks of Mackie Designs Inc. All other brand names mentioned are trademarks or registered trademarks of their respective holders, and are hereby acknowledged.

  • Page 42: Block Diagram

    BLOCK DIAGRAM...
  • Page 43 NOTES...
  • Page 44 ™ ® Mackie Designs Inc. Mackie Designs Inc. 16220 Wood-Red Rd. NE • Woodinville, WA 98072 • USA US & Canada: 800/898-3211 Europe, Asia, Central & South America: 425/487-4333 Middle East & Africa: 31-20-654-4000 Fax: 425/487-4337 • www.mackie.com E-mail: sales@mackie.com...

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