Welcome; Features; How To Use This Manual - Crown MA-1202 Operation Manual

MA Series Power Amplifiers
* 1 kHz ** 20 Hz–20 kHz
MA-602
Power Power
2 ohm Dual (per ch.) 400W 335W
325W 300W
4 ohm Dual (per ch.)
8 ohm Dual (per ch.) 225W 210W
750W 650W
4 ohm Bridge-Mono
8 ohm Bridge-Mono 655W 605W
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD.
**20 Hz–20 kHz Power: refers to maximum average power
in watts from 20 Hz to 20 kHz with 0.1% THD.
20 Hz–20 kHz
* 1 kHz **
MA-1202
Power Power
675W 585W
2 ohm Dual (per ch.)
4 ohm Dual (per ch.) 480W 450W
310W 295W
8 ohm Dual (per ch.)
1,300W 1,130W
4 ohm Bridge-Mono
8 ohm Bridge-Mono 970W 895W
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD.
**20 Hz–20 kHz Power: refers to maximum average power
in watts from 20 Hz to 20 kHz with 0.1% THD.
* 1 kHz ** 20 Hz–20 kHz
MA-2402
Power Power
2 ohm Dual (per ch.) 1,050W 850W
800W 750W
4 ohm Dual (per ch.)
520W 505W
8 ohm Dual (per ch.)
2,070W 1,670W
4 ohm Bridge-Mono
1,585W 1,485W
8 ohm Bridge-Mono
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD.
**20 Hz–20 kHz Power: refers to maximum average power
in watts from 20 Hz to 20 kHz with 0.1% THD.
Operation Manual

1 Welcome

Congratulations on purchasing one of the
® ®
renowned Crown Macro-Tech power ampli-
fiers. They are designed to provide enormous
levels of pure, undistorted power in a rugged,
low-profile package — making them the choice
for pro sound reinforcement. They utilize our
®
patented ODEP protection circuitry to keep
the show going long after other amplifiers have
™
shut down. And with their PIP expandability,
Macro-Tech amplifiers can be easily custom-
ized with one of our many optional input mod-
ules (see Section 5 for a list of available PIPs).
Modern power amplifiers are sophisticated
pieces of engineering capable of producing
extremely high power levels. They must be
treated with respect and correctly installed if
they are to provide the many years of reliable
service for which they were designed.
In addition, the Macro-Tech 02 Series amplifi-
ers include a number of features which require
some explanation before they can be used to
their maximum advantage.
Please take the time to study this manual so
that you can obtain the best possible service
from your amplifier.

1.1 Features

• Crown's Grounded-Bridge™ design deliv-
ers large voltage swings without using
easily stressed output-transistor configu-
rations like conventional amplifiers. The
results are lower distortion and superior
reliability.
• Patented ODEP (Output Device Emulation
Protection) circuitry compensates for
overheating and overload to keep the
amplifier working when others would fail.
• Complete protection against shorted,
open, and mismatched loads, overheating,
DC, high-frequency overload, and full
internal fault protection provided by our
latest protection scheme: "Quad-Mute."
• Two mono modes (Bridge-Mono and
Parallel-Mono) for driving a wide range of
load impedances.
• Dedicated power supply transformers iso-
late channels in Stereo mode for superb
crosstalk characteristics and reliability —
each channel is virtually a separate
amplifier.
• High damping factor provides superior
control over low-frequency drivers for a
clean, accurate low end.
• PIP (Programmable Input Processor) con-
nector accepts accessories that tailor the
amplifier to suit specific applications.
• Enhanced PIP2™ (Programmable Input
Processor) connector accepts new acces-
sory modules that further tailor the ampli-
fier to suit specific applications, including
wideband load current monitoring.
• Backed by the industry's ONLY three-year,
no-fault, fully transferable warranty.
2 How to Use This
Manual
This manual provides you with the necessary
information to safely and correctly set up and
operate your amplifier. It does not cover every
aspect of installation, setup or operation that
might occur under every condition. For addi-
tional information, please consult Crown's
Amplifier Application Guide (available online at
www.crownaudio.com), Crown Technical Sup-
port, your system installer or retailer.
We strongly recommend you read all instruc-
tions, warnings and cautions contained in this
manual. Also, for your protection, please send
in your warranty registration card today. And
save your bill of sale—it's your official proof of
purchase.
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