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Table of Contents
Related Manuals for Mackie M1200/M1400
Summary of Contents for Mackie M1200/M1400
- Page 1 M•1200/M•1400 OWNER’S MANUAL ™ HIGH-CURRENT POWER AMPLIFIERS...
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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 Perhaps the most important feature of the FR Series™ Power Amplifiers is the attention to detail in every aspect of the design. 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...
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Page 4: Quick Start
READ THIS PAGE! QUICK START I got ants in my pants and I got to dance! INSTALLATION The M•1200/M•1400 amps can be mounted in any standard rack system (see ), or placed horizon- tally on a floor or table. The heavier internal components are located towards the front of the chassis to make it easier to hold the amp by its front handles. - Page 5 35 Hz UNBALANCED STAGE MONITOR CONCEIVED, DESIGNED, AND MANUFACTURED 100 Hz BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING 170 Hz CONSTANT DIRECTIVITY HORN EQ /AIR EQ 4.5 k Hz 2k Hz 5.6k Hz...
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Page 6: How To Use This Manual
HOW TO USE THIS MANUAL APPLICATION DIAGRAMS Mackie’s 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 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•1200 : MAIN SPEAKERS AND STAGE MONITORS... - Page 9 FILTER TYPICAL BALANCED TYPICAL 35 Hz UNBALANCED STAGE MONITOR OUTPUT APPLICATION 100 Hz BY MACKIE DESIGNS INC • WOODINVILLE • WA 170 Hz FULL RANGE WOOFER LIMITER CONSTANT DIRECTIVITY (CH1 & CH2) HORN EQ /AIR EQ STEREO 4.5 k Hz...
- Page 10 TYPICAL 35 Hz UNBALANCED STAGE MONITOR OUTPUT APPLICATION CONCEIVED, DESIGNED, AND MANUFACTURED 100 Hz BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING 170 Hz FULL RANGE WOOFER LIMITER CONSTANT DIRECTIVITY (CH1 &...
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Page 11: Feature Descriptions
FEATURE DESCRIPTIONS GAIN These giant knobs control the levels to the output section of the M•1200/M•1400 amplifi- ers. You’ll notice that their travel is detented, meaning there are 40 built-in “resting points” so you can easily set both controls to the same level. -
Page 12: 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 13: Sig
PROTECT mode (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 14: Temp Status
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE MONO CONCEIVED, DESIGNED, AND MANUFACTURED BRIDGE – BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING – MANUFACTURING DATE... -
Page 15: Power Cord
soothing green light adjacent to it glows. To turn the amp off, push the lower half. It’ll click again and the green light will extinguish. When you power up the M•1200/M•1400, a built-in delay circuit prevents any pops or thumps from being transmitted to the speakers due to turn-on instability in the system. -
Page 16: Input
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE MONO CONCEIVED, DESIGNED, AND MANUFACTURED BRIDGE – BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING – jacks are in MANUFACTURING DATE... - Page 17 When connecting a balanced signal using the XLR or 1/4" jacks, they’re wired thusly, per AES (Audio Engineering Society) standards: Hot (+) Pin 2 Cold (–) Pin 3 Ring Shield (Ground) Pin 1 Shield SHIELD COLD SHIELD COLD Balanced XLR Connectors RING SLEEVE SLEEVE...
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Page 18: Thru
THRU Someday you’ll do a show at Carnegie Hall and realize that one M•1200 or M•1400 ampli- fier is just not going to do the job — you’ll need a six-foot-high rack full of ’em. That’s what the THRU jack is for. Simply plug the signal source outputs into the first amp’s INPUTs from that amp’s THRU jacks to the next amp’s INPUTs, and so on, daisy-chaining as many... -
Page 19: Cd Frequency
(above 6kHz). And in Mackie-land, this gentle boost has a name: AIR, as seen on our SR series of consoles. By boost- ing these high frequencies, AIR will breathe life into your mix, making cymbals brighter and vocals silkier. -
Page 20: Stereo
The AMP MODE switch determines the in- put signal routing within the M•1200/M•1400 amplifier. Shipped from the factory, the switch is set to STEREO. This is correct for about 90% of the applications using an amp like this (hence the TYPICAL indicator near it). But you may be in the 10% bracket, requiring spe- cial input routing within the amp. -
Page 21: Subwoofer
“square off,” and the average power going into the speaker is roughly double that of a sine wave. Square waves sound awful, and could possibly damage your speakers and/or your reputation. The LIMITER is especially handy when you’re working with loud output levels. Having the signal spikes (kick drum, for instance) at- tenuated a bit can actually increase the apparent loudness of the overall mix without... - Page 22 3. Set the LOW CUT FILTER frequency control to either 63Hz or 125Hz, depending on the cutoff frequency selected in the subwoofer amplifier Since these exact frequencies are not la- beled on the amplifier, you can guesstimate the position of the knob. 63Hz is located at about 1 o’clock and 125Hz is about 4 o’clock.
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Page 23: General Precautions And Considerations
GENERAL PRECAUTIONS AND CONSIDERATIONS RACK MOUNTING The M•1200/M•1400 amp requires two rack space units (2U = 3.5"). It also requires 16.25" depth inside the rack, including the rear sup- ports. When designing your rack, put the heavier items at the bottom and the lighter items toward the top. -
Page 24: 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 build your own cables, refer to the “Connectors”... -
Page 25: 70V Distribution Systems
The thickness of wire is rated in gauges. Use the chart below to determine the correct gauge of wire to use according to the distance between the speakers and the amplifier, and the impedance of the load the amplifier is driv- ing. -
Page 26: Appendix A: Service Info
Troubleshooting section. Doing so might save you from the deprivation of your amplifier and the associated suffering. Of all Mackie products returned for service (which is hardly any at all), roughly 50% are coded “CND” — Could Not Duplicate, which usually means the problem lay somewhere else in the system. -
Page 27: 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 28: Appendix B: Glossary
Mix Bookshelf at 1-800-233-9604. We recom- mend the following titles: The Audio Dictionary, by Glenn White; Tech Terms, by Peterson & Oppenheimer; Handbook for Sound Engineers, by Glen Ballou; Mackie Mixer Book by Rudy Trubitt; and Sound Rein- forcement Handbook, by Gary Davis. balanced In a classic, balanced audio circuit, the two legs of the circuit (+ and –) are isolated from... - Page 29 A point of slight physical resistance (a click- stop) in the travel of a knob or slide control, used in Mackie mixers to indicate unity gain. diffraction The bending of sound waves around an ob- stacle (Huygens Principle). The longer the wavelength in comparison to the obstacle, the more the wave will diffract around it.
- Page 30 (also called a high-pass filter) reduces or eliminates frequencies below its cutoff fre- quency. There are also high-cut (low-pass) filters, bandpass filters (which cut both high and low frequencies but leave a band of fre- quencies in the middle untouched), and notch filters (which remove a narrow band but leave the high and low frequencies alone).
- Page 31 Maintaining proper circuit impedance rela- tionships is important to avoid distortion and minimize added noise. Mackie input and out- put impedances are designed to work well with the vast majority of audio equipment. knee A knee is a sharp bend in an EQ response curve not unlike the sharp bend in your leg.
- Page 32 Another common TRS applica- tion is for insert jacks, used for inserting an external processor into the signal path. In Mackie mixers, the tip is send, ring is return, and sleeve is ground. Acronym for Tip-Sleeve, a scheme for con- necting two conductors through a single plug or jack.
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Page 33: Appendix C: Connectors
APPENDIX C: 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 34 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.
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Page 35: Appendix D: Arcane Mysteries Illuminated
APPENDIX D: 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 36: Grounding
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. 11. - Page 37 the component and the nominal signal level. It is important to maintain a reasonable amount of headroom so that the dynamic transient peaks of the musical program can be reproduced without clipping. 10 dB of head- room is usually adequate, but some program material may require up to 20 dB.
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Page 38: Biamplified And Triamplified 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 E: Technical Info
APPENDIX E: 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
SPECIFICATIONS Continuous Average Output Power, both channels driven: M•1200 225 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than 0.025% THD 400 watts per channel into 4 ohms from 20Hz to 20kHz, with no more than 0.050% THD 600 watts per channel into 2 ohms from 20Hz to 20kHz, with no more than 0.095% THD Bridged mono operation:... - Page 41 Handle Depth 1.25 inches (32mm) Weight 36 pounds (16.3kg) Mackie Designs is always striving to improve our products by incorporating new and improved materials, components, and manufacturing methods. Because we’re always trying to make things better, we reserve the right to change these specifications at any time without notice.
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Page 42: Block Diagram
BLOCK DIAGRAM M•1200/M•1400... -
Page 43: Colophon
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 Jones), and our incomparable Art Department (Sara Delahan).