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6
HOW TO USE THIS MANUAL
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 tech-heads who like
to use a calculator and read specifications.
You’ll find it all here.
APPLICATION DIAGRAMS
Mackie’s gang of illustrators have created
easy-to-understand diagrams of popular studio
and live-sound setups. Your setup will probably
be different in some way, but these diagrams
will help you see the big picture so you can add
your own finishing touches.
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 in-depth explanations
of features and practical tips. While not man-
datory, they’ll have some valuable information.
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.