Mackie M-1400i Owner's Manual
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Mackie M-1400i Owner's Manual

Fr series high-current power amplifier
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M•1400i
OWNER'S MANUAL
AND WARRANTY REGISTRATION
™
HIGH-CURRENT POWER AMPLIFIER

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Summary of Contents for Mackie M-1400i

  • Page 1 M•1400i OWNER’S MANUAL AND WARRANTY REGISTRATION ™ HIGH-CURRENT POWER AMPLIFIER...

  • Page 2: Safety Instructions

    10. Object and Liquid Entry — Care should be taken so that ATTENTION: POUR EVITER LES RISQUES DE CHOC objects do not fall into and liquids are not spilled into this Mackie ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER product.
  • Page 3 FR Series™ Power Amplifiers is the attention plug in a few cables and power it up. Well, it’s to detail in every aspect of the design. At Mackie, almost that simple. There’s just a few things we know what it takes to be roadworthy. After that we’d like you to be aware of, and we’ll dis-...

  • Page 4: Quick Start

    READ THIS PAGE! QUICK START 6. Determine which AMP MODE is best for your application: I got ants in my pants and I got to dance! • STEREO mode (separate left and right INSTALLATION inputs, separate left and right outputs) is the typical setup for amplifying stereo You can mount the signals.
  • Page 5 DEBRANCHER AVANT DE REMPLACER LE FUSIBLE 35 Hz UNBALANCED 35 Hz UNBALANCED CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA • 98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDING STAGE STAGE MONITOR MONITOR COPYRIGHT ©...

  • Page 6: How To Use This Manual

    HOW TO USE THIS MANUAL APPLICATION DIAGRAMS THE GLOSSARY: A HAVEN OF NON- TECHINESS FOR THE NEOPHYTE Mackie’s gang of illustrators have created easy-to-understand diagrams of popular studio Just in case you’re new to the audio world, and live-sound setups. Your setup will probably we’ve included a fairly comprehensive dictio-...

  • Page 7: Table Of Contents

    CONTENTS QUICK START ............4 APPLICATION DIAGRAMS ......... 8 FEATURE DESCRIPTIONS ..........11 GAIN ............. 11 METERS ............12 SIG ............... 13 PROTECT ............13 SHORT............13 TEMP STATUS ..........14 POWER ............14 POWER CORD ..........15 SPEAKER OUTPUTS ......... 15 INPUT ............

  • Page 8: Application Diagrams

    APPLICATION DIAGRAMS TWO M•1400i : MAIN SPEAKERS AND STAGE MONITORS...

  • Page 9: Main Speakers/Stage Monitors With One Amplifier

    UNBALANCED UNBALANCED 35 Hz STAGE STAGE CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA • 98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDING MONITOR MONITOR COPYRIGHT © 1997 • THE FOLLOWING ARE TRADEMARKS AND/OR REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", FR SERIES, AND THE "RUNNING MAN" FIGURE...

  • Page 10: Stereo System With Cd Horns

    UNBALANCED UNBALANCED 35 Hz STAGE STAGE CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA • 98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDING MONITOR MONITOR COPYRIGHT © 1997 • THE FOLLOWING ARE TRADEMARKS AND/OR REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", FR SERIES, AND THE "RUNNING MAN" FIGURE...

  • Page 11: Feature Descriptions

    FEATURE DESCRIPTIONS GAIN Constant Gain vs. Constant Sensitivity These giant knobs control the levels to the There are two viewpoints, or philosophies, output section of the M•1400i amplifier. You’ll regarding the gain structure of power amplifi- notice that their travel is detented, meaning ers —...

  • Page 12: Meters

    (unless you have a power. The numbers next to the meter’s LEDs Mackie mixer with low-noise VLZ circuitry!). are in dB below full power. Conversely, constant sensitivity demands Ideally, the M•1400i’s –20, –9, –6, and –3...

  • Page 13: Sig

    (when a signal is present), muting all signals at the amp’s outputs. PROTECT This short-circuit LED is a Mackie exclusive If the PROTECT LEDs are on, the M•1400i’s (until the other guys “borrow” the idea) and output section has shut down. That, of course, can save precious minutes of your trouble- means you won’t hear anything until you rectify...

  • Page 14: Temp Status

    DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE DEBRANCHER AVANT DE REMPLACER LE FUSIBLE CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA • 98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDING ©...

  • Page 15: Power Cord

    SPEAKER OUTPUTS When you power up the M•1400i, a built-in delay circuit prevents any pops or thumps from Some call them “GR” jacks, others call them being transmitted to the speakers due to turn- “Banana” jacks, but we prefer to call them on instability in the system.

  • Page 16: Input

    DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE DEBRANCHER AVANT DE REMPLACER LE FUSIBLE CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA • 98072 • USA • MADE IN USA • FABRIQUE AU USA • PATENTS PENDIN COPYRIGHT ©...
  • Page 17 When connecting a balanced signal using Unbalanced TS (tip-sleeve) lines can be ac- the XLR or 1/4" jacks, they’re wired thusly, per commodated via the TRS jack. Make sure the AES (Audio Engineering Society) standards: cord terminates with a TS plug (like a guitar plug), or if it’s a TRS plug (like a headphone plug), make sure the ring is tied to the shield, Hot (+)

  • Page 18: Thru

    THRU can’t reproduce — you can’t hear it, and worse yet, it’s a waste of amplifier power that can be Someday you’ll do a show at Carnegie Hall better used reproducing frequencies you can hear. and realize that one M•1400i amplifier is just not going to do the job —...

  • Page 19: Cd Frequency

    The boost to the signal (above 6kHz). And in CONSTANT DIRECTIVITY HORN EQ control Mackie-land, this gentle boost has a name: AIR, on the M•1400i compensates for this natural as seen on our SR series of consoles. By boost-...

  • Page 20: Stereo

    The AMP MODE switch determines the in- To use all the M•1400i’s power to drive one speaker cabinet using BRIDGE mode, you’ll put signal routing within the M•1400i amplifier. Shipped from the factory, the switch is set to have to do four things: STEREO.

  • Page 21: Subwoofer

    longer linearly follows the input voltage and simply stops. This causes a sine wave to Since most low-frequency energy is mono- “square off,” and the average power going into phonic (the same in both channels), the the speaker is roughly double that of a sine subwoofer circuit takes the signal from both wave.
  • Page 22 3. Set the LOW CUT FILTER frequency 2. Adjust the signal generator level so you control to either 63Hz or 125Hz, depending measure 1V rms output at 1kHz. (You should turn down the GAIN knobs on the on the cutoff frequency selected in the subwoofer amplifier amplifier about halfway.) Since these exact frequencies are not la-...

  • Page 23: General Precautions And Considerations

    GENERAL PRECAUTIONS AND CONSIDERATIONS RACK MOUNTING AC POWER CONSIDERATIONS The M•1400i amp requires two rack space Be sure the M•1400i is plugged into an out- units (2U = 3.5"). It also requires 16.25" depth let that is able to supply 120VAC at high inside the rack, including the rear supports.

  • Page 24: Input Wiring

    AC Power Distribution using the unbalanced inputs, use a high-quality The majority of AC outlets encountered in 2-conductor shielded cable. Your Mackie homes and clubs are served by a 240VAC cen- Dealer can recommend a suitable cable for ter-tapped service entrance transformer. This your application.

  • Page 25: 70V Distribution Systems

    The thickness of wire is rated in gauges. tions when setting up a multi-speaker system. Use the chart below to determine the correct You just add up the total wattages of all the gauge of wire to use according to the distance speakers in the system and make sure that it between the speakers and the amplifier, and doesn’t exceed the total power rating of the...

  • Page 26: Appendix A: Service Info

    • Is the HOT TEMP STATUS LED lit? Of all Mackie products returned for service Make sure there is cool air available at the (which is hardly any at all), roughly 50% are front of the amplifier.

  • Page 27: Repair

    It hurts when I touch my arm, or my leg, or important. When you call for the RA even my head! number, please let Tech Support know if you need new packaging. Mackie is not • You have a broken finger. responsible for any damage that occurs Bad sound! due to non-factory packaging.

  • Page 28: Appendix B: Glossary

    Dictionary, by Glenn White; Tech Terms, by Peterson & Oppenheimer; Handbook for A term for a sound mixer, usually a large Sound Engineers, by Glen Ballou; Mackie desk-like mixer. Mixer Book by Rudy Trubitt; and Sound Rein- crest factor forcement Handbook, by Gary Davis.
  • Page 29 Mackie mixers to indicate unity gain. Equalization (EQ) refers to purposefully diffraction changing the frequency response of a circuit,...
  • Page 30 (also called a high-pass filter) reduces or Maintaining a good safety ground is always eliminates frequencies below its cutoff fre- essential to prevent electrical shock. Follow quency. There are also high-cut (low-pass) manufacturer’s suggestions and good electrical filters, bandpass filters (which cut both high practices to ensure a safely grounded system.
  • Page 31 Monitor speakers tionships is important to avoid distortion and are also called foldback speakers. In recording, minimize added noise. Mackie input and out- the monitor speakers are those used by the put impedances are designed to work well with production staff to listen to the recording as it the vast majority of audio equipment.
  • Page 32 –3 dB frequencies. A peak- external processor into the signal path. In ing EQ centered at 10kHz whose –3 dB points Mackie mixers, the tip is send, ring is return, are 7.5kHz and 12.5kHz has a Q of 2. and sleeve is ground.

  • Page 33: Appendix C: Connectors

    “XLR” CONNECTORS (output from mixer), ring to signal return (input back into mixer), and sleeve to ground Mackie amplifiers use 3-pin female “XLR” (earth). connectors on each input, with pin 1 wired to • Balanced mono circuits. When wired as a the grounded (earthed) shield, pin 2 wired to balanced connector, a 1⁄4"...
  • Page 34 (–) binding post terminals on the amplifier. 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 35: Appendix D: Arcane Mysteries Illuminated

    APPENDIX D: Arcane Mysteries Illuminated Balanced Lines sleeving on the drain wire (the one that Balanced lines offer increased immunity connects to pin 1) to prevent it from to external noise (specifically, hum and buzz). contacting the connector shell. Because a balanced system is able to minimize 2.

  • Page 36: Grounding

    of RF interference and plan for them Here are some guidelines: before you begin construction. Know the 1. Use balanced lines if at all possible. They frequency, transmitter power, etc. You can provide better immunity to induced noise get this information by calling the station. and ground loops.
  • Page 37 the component and the nominal signal level. Next comes the output level of the channel, It is important to maintain a reasonable controlled by a fader or rotary gain control. amount of headroom so that the dynamic Faders usually have an indication in the graph- transient peaks of the musical program can be ics that shows the normal or nominal setting reproduced without clipping.

  • Page 38: Biamplified And Triamplified Systems

    PASSIVE TO TWEETER POWER AMPLIFIER CROSSOVER (STEREO MODE) LOW FREQUENCIES TO WOOFER CH 1 CH 1 FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) – TWO-WAY SPEAKER CABINET – CH 2 CH 2 FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) HIGH-LEVEL HIGH FREQUENCIES...

  • Page 39: Appendix E: Technical Info

    APPENDIX E: Technical Info DO THE MATH: OHMS, LOADS AND SUCH Remember: As the load gets “heavier,” its “Parallel” means that the positive amp out- value in ohms goes down. For instance, a put connects to the positive terminals of all the 2-ohm speaker load is twice as “heavy”...

  • Page 40: Specifications

    SPECIFICATIONS M•1400i Damping Factor: Continuous Sine Wave Average Output Power, both channels driven: > 350 from 0 to 400Hz 250 watts per channel into 8 ohms from 20Hz to 20kHz, Input Impedance: with no more than 0.012% THD 20k balanced bridging 425 watts per channel into 4 ohms from 20Hz to 20kHz, with no more than 0.025% THD Input Sensitivity:...
  • Page 41 Constant Directivity High Frequency Boost: AC Line Power: 2kHz to 6kHz (+3 dB points) 120VAC, 60Hz 6 dB/octave high-frequency shelving filter, AC Drop-out Voltage: (shelving occurs at approximately 30kHz) At approximately 50% of rated line voltage Limiter Section: Physical: Complementary Positive and Negative Peak Detecting Height 3.5 inches (89mm) Indicators:...

  • Page 42: Block Diagram

    Rick Chinn. Manual then defaced with proofreading pens in the hands of Mackie’ s legendary Tech Support staff (Paul Larson), New Products Engineering staff (Cal Perkins and Cameron...

  • Page 43: M•1400I Limited Warranty

    Mackie and Mackie warranty. Authorized Service Centers may, at their option, C. Service and repairs of Mackie products are to be require proof of the original date of purchase in the performed only at the factory (see D below) OR at an form of a dated copy of the original dealer’s invoice...

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