Owner's Manual
Page 1
...CH 1 2 INTERNAL STATUS PROTECT SHORT TEMP STATUS CH 1& 2 COLD HOT PROFESSIONAL POWER AMPLIFIER ON OFF POWER (MONO BRIDGE) 1200 WATTS 4 OHM LOAD MIN. 600 WATTS CH 2 OHMS LOAD MIN. 120 VAC...AIR EQ 4.5 kHz ON 2k Hz 5.6k Hz AIR EQQ OFF TYPICAL THRU AMP MODE STEREO TYPICAL MONO BRIDGE OUTPUT APPLICATION FULL RANGE LIMITER (CH1 & CH2) ...™ HIGH-CURRENT POWER AMPLIFIERS ™ DO NOT REMOVE COVER. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE CH 1 + MONO - + BRIDGE CH 2 + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • ...
...CH 1 2 INTERNAL STATUS PROTECT SHORT TEMP STATUS CH 1& 2 COLD HOT PROFESSIONAL POWER AMPLIFIER ON OFF POWER (MONO BRIDGE) 1200 WATTS 4 OHM LOAD MIN. 600 WATTS CH 2 OHMS LOAD MIN. 120 VAC...AIR EQ 4.5 kHz ON 2k Hz 5.6k Hz AIR EQQ OFF TYPICAL THRU AMP MODE STEREO TYPICAL MONO BRIDGE OUTPUT APPLICATION FULL RANGE LIMITER (CH1 & CH2) ...™ HIGH-CURRENT POWER AMPLIFIERS ™ DO NOT REMOVE COVER. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE CH 1 + MONO - + BRIDGE CH 2 + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • ...
Owner's Manual
Page 3
... Subway Train Ear plugs or protec- We appreciate your serial number here for choosing a Mackie Designs amplifier that performs better than nec- The Mackie Designs M•1200/M•1400 Power ventional designs use hearing protectors Typical while this amplification system) use lots of these permissible ... club operation. where the "FR" comes from - Lend Me Your Ears Exposure to extremely high noise levels may wonder why a power amp even we 've applied almost that simple. They boast a wealth of ordinary amplifiers. Start on Please write your vote of 6 ...
... Subway Train Ear plugs or protec- We appreciate your serial number here for choosing a Mackie Designs amplifier that performs better than nec- The Mackie Designs M•1200/M•1400 Power ventional designs use hearing protectors Typical while this amplification system) use lots of these permissible ... club operation. where the "FR" comes from - Lend Me Your Ears Exposure to extremely high noise levels may wonder why a power amp even we 've applied almost that simple. They boast a wealth of ordinary amplifiers. Start on Please write your vote of 6 ...
Owner's Manual
Page 4
...MONO mode (sometimes called Bridged-Mono - IMPORTANT: The M•1200/M•1400 amps draw their TYPICAL marks (35Hz). 4. CONNECTIONS AND SETTINGS 1. Set both CONSTANT DIRECTIVITY switches OFF (unless you're using the M•1200/M•1400 to power a subwoofer, you should connect to the amplifier in BRIDGE ...mode, the SHORT LEDs may light, putting the amplifier into 4 ohms). Determine which AMP MODE is for each channel are wired in my ...
...MONO mode (sometimes called Bridged-Mono - IMPORTANT: The M•1200/M•1400 amps draw their TYPICAL marks (35Hz). 4. CONNECTIONS AND SETTINGS 1. Set both CONSTANT DIRECTIVITY switches OFF (unless you're using the M•1200/M•1400 to power a subwoofer, you should connect to the amplifier in BRIDGE ...mode, the SHORT LEDs may light, putting the amplifier into 4 ohms). Determine which AMP MODE is for each channel are wired in my ...
Owner's Manual
Page 5
... PERSONNEL. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE CH 1 + MONO - + BRIDGE CH 2 + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING - - In STEREO and MONO modes..., connect speaker cables to an amp or reconfiguring an amp's routing, turn the amp's level (GAIN) controls down, turn on and verify that the signal present (SIG) LEDs are blinking. 15. Turn the M•1200/M•1400's POWER switch on the amplifiers last. • Save ...
... PERSONNEL. DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE CH 1 + MONO - + BRIDGE CH 2 + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING - - In STEREO and MONO modes..., connect speaker cables to an amp or reconfiguring an amp's routing, turn the amp's level (GAIN) controls down, turn on and verify that the signal present (SIG) LEDs are blinking. 15. Turn the M•1200/M•1400's POWER switch on the amplifiers last. • Save ...
Owner's Manual
Page 11
...800W into 4 ohms (40V rms @ 4 ohms = 400 watts for a better understanding of the amplifier must have a power amp rated at a nominal +4 dBu level. As the output power of an amplifier increases, the gain of how this refers to output. It has an input sensitivity of 1V, 2V, ...level. constant gain and constant sensitivity. However, reducing the GAIN controls requires an increased input level to full power. When using the M•1200/M•1400 as the power of power amplifiers - This is how the sensitivity of an amplifier is detented, meaning there are two viewpoints, or ...
...800W into 4 ohms (40V rms @ 4 ohms = 400 watts for a better understanding of the amplifier must have a power amp rated at a nominal +4 dBu level. As the output power of an amplifier increases, the gain of how this refers to output. It has an input sensitivity of 1V, 2V, ...level. constant gain and constant sensitivity. However, reducing the GAIN controls requires an increased input level to full power. When using the M•1200/M•1400 as the power of power amplifiers - This is how the sensitivity of an amplifier is detented, meaning there are two viewpoints, or ...
Owner's Manual
Page 13
...PROTECT If the PROTECT LEDs are on, the M•1200/ M•1400's output section has shut down the source signal (i.e. Powering up a system. SHORT If this 3 second delay, the PROTECT LEDs light up. 2. This short-circuit LED is a Mackie exclusive (until you ! WARNING: The SHORT LEDs indicate ...of the outputs, meaning that can cause the PROTECT circuit to engage: 1. The M•1200/M•1400 amps draw their ventilation air in delay circuit saves your cables. SIG SIG (short for the power amplifier. in from the thumps or pops that the hot (+) and cold (-) speaker wires...
...PROTECT If the PROTECT LEDs are on, the M•1200/ M•1400's output section has shut down the source signal (i.e. Powering up a system. SHORT If this 3 second delay, the PROTECT LEDs light up. 2. This short-circuit LED is a Mackie exclusive (until you ! WARNING: The SHORT LEDs indicate ...of the outputs, meaning that can cause the PROTECT circuit to engage: 1. The M•1200/M•1400 amps draw their ventilation air in delay circuit saves your cables. SIG SIG (short for the power amplifier. in from the thumps or pops that the hot (+) and cold (-) speaker wires...
Owner's Manual
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.... DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE CH 1 + MONO - + BRIDGE CH 2 + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING - - Regardless of whether one...SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. So, when the M•1200/M•1400 is overworking the M•1200/M•1400 or it's not properly ventilated. POWER To make the amp operate, push the top half of the following situations: improper ventilation, high ...
.... DEBRANCHER AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE CH 1 + MONO - + BRIDGE CH 2 + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING - - Regardless of whether one...SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. So, when the M•1200/M•1400 is overworking the M•1200/M•1400 or it's not properly ventilated. POWER To make the amp operate, push the top half of the following situations: improper ventilation, high ...
Owner's Manual
Page 15
... the holes on their sides, then insert your standard fare. Note (M•1200 only): In addition to the negative inputs. This way, equipment feeding the amp won't "pop" or "thud" when it's powered up the M•1200/M•1400, a built-in delay circuit prevents any pops or thumps from ...high-quality stranded speaker cable (16 gauge or thicker), connect the positive outputs of the M•1200/M•1400 to the positive inputs of delivering 120VAC at 15 amps. To turn on . When powering up "in . You can call them whatever you can terminate your speakers, and the negative outputs...
... the holes on their sides, then insert your standard fare. Note (M•1200 only): In addition to the negative inputs. This way, equipment feeding the amp won't "pop" or "thud" when it's powered up the M•1200/M•1400, a built-in delay circuit prevents any pops or thumps from ...high-quality stranded speaker cable (16 gauge or thicker), connect the positive outputs of the M•1200/M•1400 to the positive inputs of delivering 120VAC at 15 amps. To turn on . When powering up "in . You can call them whatever you can terminate your speakers, and the negative outputs...
Owner's Manual
Page 16
... AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE MONO CH - + BRIDGE CH 1 2 CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING + + ...amp's signal routing, turn the amp's GAIN controls down, turn the POWER off, make sure nobody confuses these two inputs are in Appendix E to the amplifier. These are locking connectors that doing so creates two parallel loads. Before making connections to handle high power levels into low-impedance loads. Although the M•1200...
... AVANT DE REMPLACER LE FUSIBLE SERIAL NUMBER MANUFACTURING DATE MONO CH - + BRIDGE CH 1 2 CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING + + ...amp's signal routing, turn the amp's GAIN controls down, turn the POWER off, make sure nobody confuses these two inputs are in Appendix E to the amplifier. These are locking connectors that doing so creates two parallel loads. Before making connections to handle high power levels into low-impedance loads. Although the M•1200...
Owner's Manual
Page 18
...;1400 Power Amplifiers eliminate the need a six-foot-high rack full of 'em. THRU Someday you'll do a show at Carnegie Hall and realize that one M•1200 or M•1400 amplifier is just not going into the amp is exactly the same as the signal coming out of the THRU... THRU jacks. Both of amplifier power that amp's THRU jacks to other input connectors. they seldom reproduce below that. • 3/4 of the way up to twenty M•1200/ M•1400 amplifiers, which presents a load of 20 kohms divided by grounding the low side (-) of the signal (pin 3). And using 3-conductor ...
...;1400 Power Amplifiers eliminate the need a six-foot-high rack full of 'em. THRU Someday you'll do a show at Carnegie Hall and realize that one M•1200 or M•1400 amplifier is just not going into the amp is exactly the same as the signal coming out of the THRU... THRU jacks. Both of amplifier power that amp's THRU jacks to other input connectors. they seldom reproduce below that. • 3/4 of the way up to twenty M•1200/ M•1400 amplifiers, which presents a load of 20 kohms divided by grounding the low side (-) of the signal (pin 3). And using 3-conductor ...
Owner's Manual
Page 19
Speaking of Mackie SR consoles: If you use this , and leave the switch OFF. More on Constant Directivity Horns Back in the power response of the compression driver coupled ... roll-off in the early '70s, radial horns were the common mechanism for compensation boost. AMP MODE This three-way switch, along with a wide coverage angle (directivity). Too much high-frequency...magnet. The high frequencies tended to beam straight ahead, so if you want the M•1200/M•1400 to spread the higher frequencies evenly throughout the horn's dispersion pattern. The exact frequency...
Speaking of Mackie SR consoles: If you use this , and leave the switch OFF. More on Constant Directivity Horns Back in the power response of the compression driver coupled ... roll-off in the early '70s, radial horns were the common mechanism for compensation boost. AMP MODE This three-way switch, along with a wide coverage angle (directivity). Too much high-frequency...magnet. The high frequencies tended to beam straight ahead, so if you want the M•1200/M•1400 to spread the higher frequencies evenly throughout the horn's dispersion pattern. The exact frequency...
Owner's Manual
Page 20
...right outputs) is also popular for subwoofer applications - Also, BRIDGE mode requires special connections at quiet levels all the M•1200/M•1400's power to drive one amp in BRIDGE mode to STEREO. Finally, BRIDGE mode is the typical setup for sending a mono signal to this case. but...via OUTPUT APPLICATION ), hence the TYPICAL label below it ). BRIDGE In STEREO mode, the M•1200 Power Amplifier can deliver 600 watts per side into 2 ohms. If that you 're using an amp like this (hence the TYPICAL indicator near it . The CHANNEL 1 GAIN control adjusts the output ...
...right outputs) is also popular for subwoofer applications - Also, BRIDGE mode requires special connections at quiet levels all the M•1200/M•1400's power to drive one amp in BRIDGE mode to STEREO. Finally, BRIDGE mode is the typical setup for sending a mono signal to this case. but...via OUTPUT APPLICATION ), hence the TYPICAL label below it ). BRIDGE In STEREO mode, the M•1200 Power Amplifier can deliver 600 watts per side into 2 ohms. If that you 're using an amp like this (hence the TYPICAL indicator near it . The CHANNEL 1 GAIN control adjusts the output ...
Owner's Manual
Page 21
... APPLICATION switch to reproduce the function of a crossover! Woof! With POWER off, set to both ways. 4. The LIMITER is then directed to SUBWOOFER. So even with SUBWOOFER activated). 5. The M•1200/M•1400 amps have an active SUBWOOFER filter built in both channels), the subwoofer circuit... you 're working with the variable LOW CUT FILTER in a second M•1200/M•1400, to SUBWOOFER. 3. Set the AMP MODE to reproduce the rest of the overall mix without diminishing the "power" behind the spikes. This summed signal is especially handy when you 'll get ...
... APPLICATION switch to reproduce the function of a crossover! Woof! With POWER off, set to both ways. 4. The LIMITER is then directed to SUBWOOFER. So even with SUBWOOFER activated). 5. The M•1200/M•1400 amps have an active SUBWOOFER filter built in both channels), the subwoofer circuit... you 're working with the variable LOW CUT FILTER in a second M•1200/M•1400, to SUBWOOFER. 3. Set the AMP MODE to reproduce the rest of the overall mix without diminishing the "power" behind the spikes. This summed signal is especially handy when you 'll get ...
Owner's Manual
Page 23
...using four screws with soft washers to a 15A service. The Cooling Tunnel provides a shorter, more power that matches the power cord. AC POWER CONSIDERATIONS Be sure the M•1200/M•1400 is plugged into it. Under typical conditions reproducing rock music where musical peaks are just ... exit from the amplifier. The AC current demand of all the internal components. GENERAL PRECAUTIONS AND CONSIDERATIONS RACK MOUNTING The M•1200/M•1400 amp requires two rack space units (2U = 3.5"). In addition, because of the weight of the rack. You could use a...
...using four screws with soft washers to a 15A service. The Cooling Tunnel provides a shorter, more power that matches the power cord. AC POWER CONSIDERATIONS Be sure the M•1200/M•1400 is plugged into it. Under typical conditions reproducing rock music where musical peaks are just ... exit from the amplifier. The AC current demand of all the internal components. GENERAL PRECAUTIONS AND CONSIDERATIONS RACK MOUNTING The M•1200/M•1400 amp requires two rack space units (2U = 3.5"). In addition, because of the weight of the rack. You could use a...
Owner's Manual
Page 24
The extension cord used to supply power to the "amp rack" should have momentary peak current requirements many times above the nominal average current draw. We also... make sure they are used in a show , oftentimes you are plugging into the audio (particularly if SCRs are wired correctly. Your Mackie Dealer can check the outlets yourself to have a three-wire AC outlet tester in place. Speaker wire has resistance, and when electricity ... center screw that holds the AC outlet faceplate in your own cables, refer to the M•1200/M•1400 amplifier's SPEAKER OUTPUT terminals.
The extension cord used to supply power to the "amp rack" should have momentary peak current requirements many times above the nominal average current draw. We also... make sure they are used in a show , oftentimes you are plugging into the audio (particularly if SCRs are wired correctly. Your Mackie Dealer can check the outlets yourself to have a three-wire AC outlet tester in place. Speaker wire has resistance, and when electricity ... center screw that holds the AC outlet faceplate in your own cables, refer to the M•1200/M•1400 amplifier's SPEAKER OUTPUT terminals.
Owner's Manual
Page 26
...: TROUBLESHOOTING No power! • Our favorite question: Is it 's missing, let us know and we'll rush one to cool off the amp, swap the speaker cables at the amp, turn them ...may have your amplifier and the associated suffering. If the other ! • Do the M•1200/M•1400's meters read the same on ? Doing so might save you hear anything. •...to indicate that there are working properly. No sound! • Are the GAIN controls turned all Mackie products returned for service, including reading through the following Troubleshooting section. You may be blinking to "...
...: TROUBLESHOOTING No power! • Our favorite question: Is it 's missing, let us know and we'll rush one to cool off the amp, swap the speaker cables at the amp, turn them ...may have your amplifier and the associated suffering. If the other ! • Do the M•1200/M•1400's meters read the same on ? Doing so might save you hear anything. •...to indicate that there are working properly. No sound! • Are the GAIN controls turned all Mackie products returned for service, including reading through the following Troubleshooting section. You may be blinking to "...
Owner's Manual
Page 27
...of cartage. We recommend United Parcel Service (UPS). As soon as the monitor? Be sure that OL is very important. The M•1200/M•1400 amps draw their ventilation air in its original package, including endcaps and box. They need new packaging. Do not block the ventilation ports. .... When you need plenty of wire shorting across the speaker terminals. • If possible, listen to non-factory packaging. 5. Mackie is not routed near AC cables, power transformers, or other EMI-inducing device. • Is there a light dimmer or other SCR-based device on top of the line...
...of cartage. We recommend United Parcel Service (UPS). As soon as the monitor? Be sure that OL is very important. The M•1200/M•1400 amps draw their ventilation air in its original package, including endcaps and box. They need new packaging. Do not block the ventilation ports. .... When you need plenty of wire shorting across the speaker terminals. • If possible, listen to non-factory packaging. 5. Mackie is not routed near AC cables, power transformers, or other EMI-inducing device. • Is there a light dimmer or other SCR-based device on top of the line...
Owner's Manual
Page 37
... that case, to start at least 10 dB below the maximum output of the channel is an output meter on the meter. The M•1200/M•1400 amps are it produces a +4 dB output. The gain of the mic preamp circuit, sometimes called Mic Trim, should be necessary, in the graphics ...the microphone) and work your way to those frequencies. Set the GAIN controls fully clockwise. Next comes the output level of the mixer may drive a power amplifier directly, or it is usually adequate, but some kind to unity gain, so with music. The output of the channel, controlled by a fader ...
... that case, to start at least 10 dB below the maximum output of the channel is an output meter on the meter. The M•1200/M•1400 amps are it produces a +4 dB output. The gain of the mic preamp circuit, sometimes called Mic Trim, should be necessary, in the graphics ...the microphone) and work your way to those frequencies. Set the GAIN controls fully clockwise. Next comes the output level of the mixer may drive a power amplifier directly, or it is usually adequate, but some kind to unity gain, so with music. The output of the channel, controlled by a fader ...
Owner's Manual
Page 39
... connected in parallel, will equal 2 ohms (8 / 4 = 2). It's an indispensable tool for the lowest range (unless it . That's your M•1200/M•1400 Power Amplifier: • As a load gets "heavier," its value in ohms goes down. a speaker rated at all the same, the formula gets a little ...the second speaker's positive terminal, the second speaker's negative terminal goes to the third, and so on ), except that the positive amp output connects to the positive terminals of all seem backwards at a desired load) and parallel configurations of unmatched loads (usually not ...
... connected in parallel, will equal 2 ohms (8 / 4 = 2). It's an indispensable tool for the lowest range (unless it . That's your M•1200/M•1400 Power Amplifier: • As a load gets "heavier," its value in ohms goes down. a speaker rated at all the same, the formula gets a little ...the second speaker's positive terminal, the second speaker's negative terminal goes to the third, and so on ), except that the positive amp output connects to the positive terminals of all seem backwards at a desired load) and parallel configurations of unmatched loads (usually not ...
Owner's Manual
Page 42
CH 1 GAIN INVERTING UNITY GAIN AMPLIFIER STEREO MONO NC BRIDGE AMP MODE SWITCH LIMITER CH 2 GAIN LIMITER CH 1 PROTECT LED TO CH 1 MUTE FUSE +80VDC CH 1 SHORT LED SHORT DETECT DC OFFSET DETECT MUTE CH 1 MUTE CH 2 PROTECT LED POWER AMPLIFIER FUSE -80VDC TO CH 2 MUTE FUSE +80VDC CH 2 ... LINE INPUT (XLR-F) THRU (XLR-M) CH 1 BALANCED LINE INPUT (TRS) CH 2 BALANCED LINE INPUT (XLR-F) THRU (XLR-M) CH 2 BALANCED LINE INPUT (TRS) MACKIE DESIGNS M•1200/M•1400 BLOCK DIAGRAM (#110896DF) FREQ FREQ SIG (TO CH 1 METER DRIVE) LOW CUT FILTER CD EQ ON OFF FREQ FREQ FREQ 63 Hz...
CH 1 GAIN INVERTING UNITY GAIN AMPLIFIER STEREO MONO NC BRIDGE AMP MODE SWITCH LIMITER CH 2 GAIN LIMITER CH 1 PROTECT LED TO CH 1 MUTE FUSE +80VDC CH 1 SHORT LED SHORT DETECT DC OFFSET DETECT MUTE CH 1 MUTE CH 2 PROTECT LED POWER AMPLIFIER FUSE -80VDC TO CH 2 MUTE FUSE +80VDC CH 2 ... LINE INPUT (XLR-F) THRU (XLR-M) CH 1 BALANCED LINE INPUT (TRS) CH 2 BALANCED LINE INPUT (XLR-F) THRU (XLR-M) CH 2 BALANCED LINE INPUT (TRS) MACKIE DESIGNS M•1200/M•1400 BLOCK DIAGRAM (#110896DF) FREQ FREQ SIG (TO CH 1 METER DRIVE) LOW CUT FILTER CD EQ ON OFF FREQ FREQ FREQ 63 Hz...