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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.

IMPORTANT: The

M•1200/M•1400 amps

draw their ventilation air

in from the front and out

through the side panels. They need plenty of fresh air to stay cool.

DO NOT BLOCK THE VENTILATION PORTS (see ).

CONNECTIONS AND SETTINGS

1.Be sure the POWER switch is off before making connections.

2.Turn the GAIN controls fully down (counterclockwise) for now.

3.Set both LOW CUT FILTER controls to their TYPICAL marks (35Hz).

4.Set both CONSTANT DIRECTIVITY switches OFF (unless you’re using constant directivity horns with compression drivers).

5.Set the LIMITER switch on.

Note: If you’re using the M•1200/M•1400 to power a subwoofer, you probably do not need an external crossover. Please see for details.

6.Determine which AMP MODE is best for your application:

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 mode – one mono input, two mono outputs) is for sending a mono signal to two different speaker sets, with separately- adjustable level controls.

BRIDGE 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 should connect to the amplifier in BRIDGE mode. If you connect a lower impedance load in BRIDGE mode, the SHORT LEDs may light, putting the amplifier into PROTECT mode.

Set the AMP MODE switch accordingly.

7.In STEREO mode, connect line-level cables from your signal source to the M•1200/ M•1400’s INPUT jacks, either XLR or TRS:

The XLR and TRS inputs for each channel are wired in parallel.

The balanced XLR inputs are wired

pin 2 = hot (+), pin 3 = cold (–) and pin 1 = shield (ground).

 

 

 

 

FULL SYMMETRY DUAL DIFFERENTIAL HIGH CURRENT DESIGN

 

 

PROFESSIONAL POWER AMPLIFIER

CH

GAIN/dB

 

 

 

GAIN/dB

CH

CH

CH

 

1

 

3v

 

OL

 

OL

 

3v

 

2

1

2

 

 

 

 

 

 

 

 

 

18

20

22

–3

 

–3

18

20

22

INTERNAL STATUS

ON

 

 

 

2v

 

 

 

 

 

2v

 

 

 

 

 

16

 

24

–6

 

–6

16

 

24

 

 

PROTECT

 

 

14

 

26

–9

 

–9

14

 

26

 

 

SHORT

 

 

8

 

28

–20

 

–20

8

 

28

 

TEMP STATUS

OFF

 

 

 

30

 

 

 

 

 

30

 

 

CH

 

 

00

 

1v

 

 

 

00

 

1v

 

COLD

1& 2

 

 

SENSITIVITY

 

1.23v (+4dBu)

 

 

 

SENSITIVITY

 

1.23v (+4dBu)

 

HOT

POWER

 

 

SIG

SIG

 

 

 

 

 

4

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Mackie owner manual Quick Start, M1200/M1400 Amps can be mounted, M1200/M1400 amps

M1200/M1400 specifications

The Mackie M1200 and M1400 are two prominent power amplifiers that have gained recognition for their reliability, performance, and innovative design in the professional audio field. Engineered for both live sound and studio applications, these amplifiers deliver exceptional sound quality and unmatched power, making them a favorite among audio professionals.

One of the standout features of the M1200 and M1400 is their impressive power output. The M1200 boasts a power output of 1200 watts at 4 ohms, while the M1400 takes it a step further with 1400 watts at 4 ohms. This substantial power allows users to drive a wide range of speakers, making them suitable for various settings, from small clubs to large venues and outdoor events. Furthermore, they excel in providing clean, distortion-free sound even at high volumes.

Both models incorporate Mackie's patented Smart Protect DSP technology. This intelligent thermal and signal protection system helps prevent overheating and ensures that the amplifiers operate within safe limits, enhancing longevity and reliability. The DSP also contributes to superior sound quality, maintaining clarity and detail across different frequency ranges.

Another key feature of the M1200 and M1400 is their rugged construction. Designed for the rigors of touring and live performances, these amplifiers feature a sturdy chassis that withstands the challenges of transport and heavy use. Their efficient heatsink design allows for effective cooling, ensuring the amplifiers remain operational even under demanding conditions.

In terms of connectivity, both models are versatile. They offer XLR and TRS inputs, allowing compatibility with a variety of audio sources. The outputs include Neutrik Speakon connections, providing secure and reliable speaker connections. Additionally, the amplifiers have built-in limiters that help to prevent speaker damage by controlling signal levels.

The user-friendly interface of the M1200 and M1400 includes level control knobs, LED indicators for power and signal, and a comprehensive set of output options. This simplicity ensures that audio engineers can quickly adjust settings to cater to specific acoustic environments, making setup and operation seamless.

In conclusion, the Mackie M1200 and M1400 power amplifiers are remarkable for their powerful performance, durability, and advanced technology. Whether for live sound reinforcement or studio applications, these amplifiers continue to set a standard in audio excellence, proving their worth to sound engineers worldwide.