HOW TO USE THIS MANUAL
APPLICATION DIAGRAMS
Mackie’s gang of illustrators have created
FEATURE DESCRIPTIONS: 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 sec- tion you’ll find illustrations, with each feature numbered like this 
. If you’re curious about a feature, simply locate it on the appropriate illustration, note the number attached to it, and find that number in the nearby paragraphs.
This icon marks information that is criti- cally important or unique to the M•1200/ M•1400. For your own good, read them and re- member them. We may call you someday and quiz you.
This icon leads you to
THE GLOSSARY: A HAVEN OF NON- TECHINESS FOR THE NEOPHYTE
Just in case you’re new to the audio world, we’ve included a fairly comprehensive dictio- nary of pro audio terms. If terms like “clipping,” “noise floor,” or “unbalanced” leave you blank, flip to the glossary at the back of this manual for a quick explanation.
A PLUG FOR THE CONNECTORS SECTION
Also at the back of this manual is a section on connectors: XLR, TRS, Binding Post and Speakon connectors, balanced connectors, unbalanced connectors, and special hybrid connectors. If you plan on wiring your own cables, please visit this section before you start.
ARCANE MYSTERIES ILLUMINATED
Almost last but not least, we’ve included an appendix entitled Arcane Mysteries Illumi- nated. This section discusses some of the down ’n’ dirty practical realities of signal transmission, balancing a sound system, grounding, and bal- anced versus unbalanced lines. It’s a gold mine for the neophyte and even the seasoned pro might learn a thing or two.
TECHNICAL INFO
This section is for you
GENERAL PRECAUTIONS AND
CONSIDERATIONS
This section discusses important things to keep in mind when installing and using the M•1200/M•1400, including rack mounting, AC power, and wiring.
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