Lend Me Your Ears

According to OSHA, any exposure in excess of

 

 

 

 

 

 

 

 

Exposure to extremely high

these permissible limits could result in some hear-

 

 

noise levels may cause per-

ing loss. To ensure against potentially dangerous

 

 

manent hearing loss.

exposure to high sound pressure levels, it is recom-

 

 

Individuals vary considerably

mended that all persons exposed to equipment

in susceptibility to noise-induced hearing loss, but

capable of producing high sound pressure levels

nearly everyone will lose some hearing if exposed

(such as this amplification system) use hearing

to suffi-

 

 

 

 

protectors

ciently

Duration Per Day

Sound Level dBA,

Typical

while this

intense

In Hours

Slow Response

Example

unit is in

noise for a

8

90

Duo in small club

operation.

period of

6

92

 

Ear plugs

4

95

Subway Train

time. The

or protec-

3

97

 

U.S.

 

tors in the

2

100

Very loud classical music

Government’s

ear canals

1.5

102

 

Occupa-

1

105

Lori screaming at Ron about deadlines

or over the

tional

0.5

110

 

ears must

Safety and

0.25 or less

115

Loudest parts at a rock concert

be worn

Health Ad-

 

 

 

 

when oper-

 

 

 

 

ministration (OSHA) has specified the permissible

ating this amplification system in order to prevent

noise level exposures shown in this chart.

a permanent hearing loss if exposure is in excess of

 

 

 

 

the limits set forth here.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INTRODUCTION

Thank you for choosing a Mackie Designs power amplifier! We appreciate your vote of confidence for the folks in Woodinville who specialize in awesome and affordable audio. The Mackie Designs M•1200/M•1400 Power Amplifiers are designed to fulfill the amplifica- tion needs of almost any type of application. They boast a wealth of features you’d expect to pay extra for — like subwoofer filtering, con- stant directivity equalization, speaker-protecting limiter, and gobs of ultra-clean power, to name a few.

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 what we’ve learned to the mechanical design of our amplifiers.

Roadworthiness is only part of the picture. We know that reliability is paramount to sound reinforcement. That’s why we use double-sided thru-hole-plated fiberglass printed circuit boards. That’s why our engineers have sub- jected the amplifier to the most rigorous and punishing tests imaginable, to fine-tune the design and extend its limits beyond those of ordinary amplifiers.

Fast Recovery — where the “FR” comes from — is more than a buzzword. It is based on real, proven design principles. The result is an

amplifier that performs better than conven- tional designs when presented with adverse conditions. One of the most difficult things for a power amplifier to handle is clipping. Con- ventional designs use lots of negative feedback to provide stability and lower distortion. When clipping occurs, this “feedback” causes high- frequency sticking, keeping the amplifier “latched” in the clipping state longer than nec- essary. This results in painfully audible distortion. Our Fast Recovery design eliminates this high-frequency sticking and allows the am- plifier to remain stable when powering highly reactive loads at high volume levels.

You may wonder why a power amp even needs an owner’s manual. After all, you just plug in a few cables and power it up. Well, it’s almost that simple. There’s just a few things that we’d like you to be aware of, and we’ll dis- cuss those right away — please see the Quick Starton the next page.

Then go ahead and read the entire manual. The M•1200/M•1400 amplifiers have a wealth of useful features, and each of them is explained in detail.

Please write your serial number here for future reference (i.e., insurance claims, tech support, return authorization, etc.):

TM

Part No. 820-062-00 Rev. A 12/96

 

©1996 Mackie Designs, All Rights Reserved. Printed in the U.S.A.

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Mackie M1200/M1400 Manent hearing loss, To suffi Protectors Ciently, While this, Intense, Unit is, Noise for a, Operation

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.