Mackie M1200 Owner's Manual
Mackie M1200 Manual
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- Mackie M1200 | Owner's Manual - Page 1
COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. + CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 AIR EQQ OFF TYPICAL THRU AMP MODE STEREO TYPICAL MONO BRIDGE 1200/M•1400 OWNER'S MANUAL ™ HIGH-CURRENT POWER AMPLIFIERS ™ - Mackie M1200 | Owner's Manual - Page 2
COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION: POUR instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil. 7. Power Sources - This Mackie product should be connected to a power - Mackie M1200 | Owner's Manual - Page 3
to remain stable when powering highly FR Series™ Power Amplifiers is the attention reactive loads at high volume levels. to detail in every aspect of the design. At Mackie, You may wonder why a power amp even we know what it takes to be roadworthy. After needs an owner's manual. After all, you - Mackie M1200 | Owner's Manual - Page 4
mode (sometimes called Bridged-Mono - one mono input, one mono output) uses both sides of the amp to double the power to one speaker set. An M•1200 power amplifier, set to BRIDGE mode, delivers 1200 watts (into 4 ohms). The M•1400 delivers 1260 watts. Garsh! Note: 4 ohms is the minimum impedance you - Mackie M1200 | Owner's Manual - Page 5
adjust the amp's GAIN controls amplifiers first. When powering up, turn on the amplifiers last. • Save the shipping boxes! You may need them someday, and you probably don't want to have to pay for them again. (MONO BRIDGE) 1200 SERVICEABLE PARTS INSIDE. REFER SERVICING BY MACKIE DESIGNS INC - Mackie M1200 | Owner's Manual - Page 6
HOW TO USE THIS MANUAL APPLICATION DIAGRAMS Mackie's gang of illustrators have created easy-to-understand : MIND BOGGLING DETAILS Each and every knob, switch, and connector on the M•1200/M•1400 Power Amplifiers is explained in depth here. Throughout this section you'll find illustrations, with - Mackie M1200 | Owner's Manual - Page 7
TEMP STATUS 14 POWER 14 POWER CORD 15 SPEAKER OUTPUTS 15 INPUT 16 THRU 18 LOW CUT FILTER 18 CONSTANT DIRECTIVITY 18 CD FREQUENCY 19 AMP MODE 19 STEREO POWER CONSIDERATIONS 23 INPUT WIRING 24 OUTPUT WIRING 24 70V DISTRIBUTION SYSTEMS 25 APPENDIX A: Service Info 26 TROUBLESHOOTING - Mackie M1200 | Owner's Manual - Page 8
1200 WATTS 4 OHM LOAD MIN. 600 WATTS CH 2 OHMS LOAD MIN. 120 VAC 50/60 Hz 1500 WATTS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS MACKIE DESIGNS AMP - Mackie M1200 | Owner's Manual - Page 9
COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA AIR EQ OFF TYPICAL THRU AMP MODE STEREO TYPICAL MONO SPEAKERS AND STAGE MONITORS WITH ONE AMPLIFIER * SEE NOTE BELOW STAGE MONITOR - Mackie M1200 | Owner's Manual - Page 10
1200 WATTS 4 OHM LOAD MIN. 600 WATTS CH 2 OHMS LOAD MIN. 120 VAC 50/60 Hz 1500 WATTS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS MACKIE DESIGNS AMP - Mackie M1200 | Owner's Manual - Page 11
be quieter than the M•1200/ M•1400's maximum level. For instance, if you're using the M•1200/M•1400 as a control room amp, and your control room is drive it to full power, or +8 dBu. This can become problematic as the power of the amplifier increases. What if you have a power amp rated at 800W into - Mackie M1200 | Owner's Manual - Page 12
amplifiers with the same signal and get the maximum power available from all of them. Mackie subscribes to the philosophy of constant sensitivity. Our amplifiers can be driven to full power the GAIN controls fully up, the M•1200/M•1400 amplifiers easily accept professional "+4 dBu" operating levels - Mackie M1200 | Owner's Manual - Page 13
Mackie exclusive (until the other guys "borrow" the idea) and can save precious minutes of your troubleshooting time. Without it, you'd still have speaker and amp protection (via the PROTECT circuit), but you wouldn't be able to determine the source of the problem. But with the SHORT LED, the M•1200 - Mackie M1200 | Owner's Manual - Page 14
HOT LED comes on frequently, something is overworking the M•1200/M•1400 or it's not properly ventilated. Look at each of the "extreme conditions" described above and try to determine what is causing the amplifier to overheat. Refer to the "Troubleshooting" section in Appendix A for more help. What - Mackie M1200 | Owner's Manual - Page 15
If you shut down your system, turn off your amplifiers first. When powering up, turn on your amplifiers last. This way, equipment feeding the amp won't "pop" or "thud" when it's powered up or down. POWER CORD We all know what a power cord is. The M•1200 and M•1400 have big beefy cords built in. Plug - Mackie M1200 | Owner's Manual - Page 16
amp or reconfiguring an amp's signal routing, turn the amp's GAIN controls down, turn the POWER off, make the changes, turn the POWER back on, and then turn the GAIN controls back up. Although the M•1200/M•1400 amplifiers SERVICEABLE PARTS INSIDE. REFER SERVICING BY MACKIE DESIGNS INC - Mackie M1200 | Owner's Manual - Page 17
" section (Appendix C) at the back of this manual for more information. The M•1200/M•1400 amps expect to see a nominal signal level anywhere between the the amp's INPUTs. Use the GAIN controls to adjust the gain of the amplifier to match the signal level you're using. If you set the AMP MODE - Mackie M1200 | Owner's Manual - Page 18
circuitry between - so the signal going into the amp is exactly the same as the signal coming out So, grab your woofer's spec sheet and find the low roll-off spec. Then set the M•1200/ M•1400's LOW CUT FILTER complexity to your system. The M•1200/M•1400 Power Amplifiers eliminate the need for any of - Mackie M1200 | Owner's Manual - Page 19
the signal (above 6kHz). And in Mackie-land, this gentle boost has a name: AIR, as seen on our SR series of consoles. By boosting these high ). AMP MODE This three-way switch, along with the OUTPUT APPLICATION's three-way switch, determines what kind of amplifier you want the M•1200/M•1400 - Mackie M1200 | Owner's Manual - Page 20
- one mono input, one mono output) uses both sides of the amp to double the power to one speaker set. With two M•1200 power amplifiers, each set to BRIDGE mode, you can deliver as much as 1200 watts per amplifier. If you set the AMP MODE switch in MONO or BRIDGE, use the CHANNEL 1 inputs only - the - Mackie M1200 | Owner's Manual - Page 21
still pay attention to the OL LEDs . SUBWOOFER Here's a special surprise: If you bought the M•1200/M•1400 amplifier to power a subwoofer system, you just saved yourself the cost of a crossover! The M•1200/M•1400 amps have an active SUBWOOFER filter built in. You can use it, along with the variable - Mackie M1200 | Owner's Manual - Page 22
be capable of measuring low frequencies accurately (down to 60Hz). 1. Connect the signal generator to the INPUT of the amplifier and monitor the SPEAKER OUTPUT with the voltmeter or o'scope. 2. Adjust the signal generator level so you measure 1V rms output at 1kHz. (You should turn down the GAIN - Mackie M1200 | Owner's Manual - Page 23
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 supports. When designing your rack, put the heavier items at the bottom and the lighter items toward the top. Secure the front panel of the amplifier to the - Mackie M1200 | Owner's Manual - Page 24
on transients. With this in mind, we recommend using the following for a fully loaded 15A service: Extension Cord Length Wire Gauge 25 feet 14 AWG 50 feet 12 AWG 100 feet 10 AWG Power amplifiers can have momentary peak current requirements many times above the nominal average current draw - Mackie M1200 | Owner's Manual - Page 25
one benefit of such a system is that it eliminates complicated impedance calcula- FR SERIES POWER AMPLIFIER IN BRIDGE MODE + CH 1 - - CH 2 + RC NETWORK distribution systems in the U.S. Because of the high power capability of the M•1200/M•1400 amplifiers, they can be used to directly drive 70V - Mackie M1200 | Owner's Manual - Page 26
amplifier has a problem, please do everything you can to confirm it before calling for service, including reading through the following Troubleshooting section. Doing so might save you from the deprivation of your amplifier and the associated suffering. Of all Mackie products returned for service - Mackie M1200 | Owner's Manual - Page 27
frequently or continuously. • Can the amp breathe? The M•1200/M•1400 amps draw their ventilation air in from amplifier needs service, follow these instructions: 1. Review the preceding troubleshooting suggestions. Please. 2. Call Tech Support at 1-800-258-6883, 8am to 5pm PST, to explain the problem - Mackie M1200 | Owner's Manual - Page 28
by Peterson & Oppenheimer; Handbook for Sound Engineers, by Glen Ballou; Mackie Mixer Book by Rudy Trubitt; and Sound Reinforcement Handbook, by Gary the peaks of the audio signal to rise above the capabilities of the amplifier circuit. Seen on an oscilloscope, the audio peaks appear clipped off. To - Mackie M1200 | Owner's Manual - Page 29
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- inexpensive, capable of very good performance and do not require external power. dynamic range The range between the maximum and mini- mum sound - Mackie M1200 | Owner's Manual - Page 30
, such as a voltage gain of 4, or a power gain of 1.5, or it can be expressed in decibels, such as a line amplifier with a gain of 10 dB. gain stage An grounding problems, check your manual for wiring tips or call technical support. Never disable the safety ground to reduce noise problems. ground - Mackie M1200 | Owner's Manual - Page 31
and minimize added noise. Mackie input and output impedances dynamics processors. level Another word for signal voltage, power, strength, or volume. Audio signals are sometimes like a hill, or a peak. Peaking with an equalizer amplifies a band of frequencies. phone jack Ever see those old telephone - Mackie M1200 | Owner's Manual - Page 32
or balanced plugs or jacks. Another common TRS application 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. RFI Radio Frequency Interference. High frequency radiation that often results from - Mackie M1200 | Owner's Manual - Page 33
and sleeve to ground (earth). This is the application used for the inputs to Mackie amplifiers. 1⁄4" TS PHONE PLUGS AND JACKS "TS" stands for Tip-Sleeve, the two to the ground at the unbalanced input. If there are ground-loop problems, this connection may be left disconnected at the balanced end. • - Mackie M1200 | Owner's Manual - Page 34
If there are ground-loop problems, try connecting the unbalanced ground been anticipated in the wiring of Mackie jacks. A 1⁄4" TS plug TS jacks provided on the M•1200. Speakon connectors have a twist and disconnecting speaker cables to and from the amplifier. Double banana plugs have a tab on - Mackie M1200 | Owner's Manual - Page 35
the speaker lines in their own conduit. (Of course, conduit is not too practical for portable systems, heh-heh.) 6. Minimize the distance between the power amplifiers and the speakers. 7. Use heavy gauge, stranded wire for speaker lines. Ideally, the wire resistance should be less than 6% (0.5 dB - Mackie M1200 | Owner's Manual - Page 36
from the console's immediate location. 14. If you bridge an amplifier, don't use 1⁄4" phone plugs for speaker connectors. Grounding Grounding to earth ground at the service entrance by one heavy stranded wire, #2 gauge or larger. 4. Don't cut the third pin off the power cord. Carry some ground- - Mackie M1200 | Owner's Manual - Page 37
into 600 ohms). The output of the mixer may drive a power amplifier directly, or it may go through a signal processor first (i.e., that case, to reduce the level controls a few dB below unity. The M•1200/M•1400 amps are designed to accept a nominal +4 dB input signal. Set the GAIN controls - Mackie M1200 | Owner's Manual - Page 38
TO LOW-FREQUENCY AMPLIFIER FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) LOW-LEVEL 3-WAY ACTIVE CROSSOVER TO HIGH-FREQUENCY AMPLIFIER TO MID-FREQUENCY AMPLIFIER FR SERIES POWER AMPLIFIER (STEREO MODE) CH 1 INPUT CH 2 INPUT CH 1 + OUT - CH 2 - OUT + FR SERIES POWER AMPLIFIER (STEREO MODE) CH - Mackie M1200 | Owner's Manual - Page 39
just bought an amp), you probably own series and parallel links to arrive at a desired load) and parallel configurations of unmatched loads (usually not recommended). But rather than get too deep into this, let's just summarize the basics, as they apply to you and your M•1200/M•1400 Power Amplifier - Mackie M1200 | Owner's Manual - Page 40
8 ohms 480 watts per channel into 4 ohms 700 watts per channel into 2 ohms 960 watts into 8 ohms bridged 1400 watts into 4 ohms bridged Note: The M•1200/M•1400 power amplifiers draw large amounts of current from the AC line with continuous sine wave testing. Accurate measurement of - Mackie M1200 | Owner's Manual - Page 41
) 1.25 inches (32mm) 36 pounds (16.3kg) Mackie Designs is always striving to improve our products by incorporating new to change these specifications at any time without notice. 17.25" (43.8cm) M•1200/1400 WEIGHT 36 lbs. (16.3 kg) 15.25" (38.7cm) 16. PROFESSIONAL POWER AMPLIFIER ON OFF POWER 41 - Mackie M1200 | Owner's Manual - Page 42
(XLR-M) CH 2 BALANCED LINE INPUT (TRS) MACKIE DESIGNS M•1200/M•1400 BLOCK DIAGRAM (#110896DF) FREQ FREQ SIG (TO POWER AMPLIFIER CH 2 MUTE FUSE -80VDC HOT LED 80ºC MUTE 55ºC UNMUTE COLD LED TO CH 1 AND CH 2 MUTE 60ºC DETECTOR CH 1 MUTE CH 2 MUTE FAN SPEED CONTROL FAN CH 1 AMP OUT CH 2 AMP - Mackie M1200 | Owner's Manual - Page 43
by Rick Chinn. Manual then defaced with proofreading pens in the hands of Mackie's legendary Tech Support staff (Paul Larson), entire manual (we know you have, or you wouldn't be here). Mackie, The Running Man, and FR Series are either trademarks or registered trademarks of Mackie Designs
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M•1200/M•1400
OWNER’S MANUAL
™
OL
–3
–6
–9
–20
–3
–6
–9
–20
SIG
OL
SIG
CH
1
30
28
26
20
22
18
24
16
14
8
0
0
1.23v (+4dBu)
SENSITIVITY
GAIN/dB
CH
2
PROTECT
COLD
HOT
SHORT
TEMP STATUS
INTERNAL STATUS
CH
1
CH
2
CH
1& 2
ON
OFF
POWER
3v
2v
1v
30
28
26
20
22
18
24
16
14
8
0
0
1.23v (+4dBu)
SENSITIVITY
GAIN/dB
3v
2v
1v
PROFESSIONAL POWER AMPLIFIER
FULL SYMMETRY DUAL DIFFERENTIAL
HIGH CURRENT DESIGN
CHANNEL
2
1
CHANNEL
CH
1
CH
2
SPEAKER OUTPUTS
+
–
–
+
63Hz
125Hz
CONSTANT DIRECTIVITY
HORN EQ /AIR EQ
CONSTANT DIRECTIVITY
HORN EQ /AIR EQ
INPUT
THRU
THRU
INPUT
AMP MODE
FREQUENCY
4.5 kHz
ON
5.6k Hz
2k Hz
MONO
BRIDGE
LIMITER
(CH1 & CH2)
OFF
FULL
RANGE
SUB
WOOFER
LOW CUT
FILTER
LOW CUT
FILTER
OUTPUT APPLICATION
SERIAL NUMBER
MANUFACTURING DATE
RISK OF ELECTRIC SHOCK
DO NOT OPEN
REPLACE WITH THE SAME TYPE FUSE AND RATING.
DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE.
DEBRANCHER AVANT DE REMPLACER LE FUSIBLE
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
CAUTION
AVIS:
RISCQUE DE CHOC
É
LECTRIQUE — NE PAS OUVRIR
BALANCED
OR
UNBALANCED
BALANCED
OR
UNBALANCED
AIR EQ
MONO
BRIDGE
ON
/ BRIDGE / MONO
170 Hz
OFF
CONCEIVED, DESIGNED, AND MANUFACTURED
BY MACKIE DESIGNS INC • WOODINVILLE • WA
98072 • USA • MADE IN USA •
PATENTS PENDING
4.5k Hz
5.6k Hz
2k Hz
AIR EQ
120 VAC 50/60 Hz
1500 WATTS
+
–
170 Hz
100 Hz
OFF
STAGE
MONITOR
100 Hz
STAGE
MONITOR
OFF
TYPICAL
ON
OFF
TYPICAL
TYPICAL
35 Hz
TYPICAL
35 Hz
(MONO BRIDGE)
1200 WATTS
4 OHM LOAD MIN.
600 WATTS CH
2 OHMS LOAD MIN.
STEREO
TYPICAL
STEREO
TYPICAL
AIR EQ
AIR EQ
HIGH-CURRENT POWER AMPLIFIERS
™