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Macro-Tech
®
602/1202/2402 Power Amplifiers
1 Welcome
Congratulations on your purchase of the renowned
Macro-Tech
®
professional power amplifier. Macro-Tech
amplifiers are designed to provide enormous levels of
pure, undistorted power in a rugged low-profile pack-
age—making them the choice for pro sound reinforce-
ment. They utilize our patented ODEP
circuitry to keep the show going long after other ampli-
fiers have shut down. And with their PIP ™ expandability,
Macro-Tech amplifiers can be easily customized with
one of our many optional input modules (see Section 8
for a list of available PIPs).
This manual will help you successfully install and use
your new amplifier. Please read all instructions, warn-
ings and cautions. Be sure to read Sections 3.3.2 and
3.3.3 if you plan to use one of the amplifier's two mono
modes. Also for your protection, please send in your
warranty registration card today and save your bill of
sale because it is your official proof of purchase.
1.1 Unpacking
Please unpack and inspect your new amplifier for any
damage that may have occurred during transit. If dam-
age is found, notify the transportation company imme-
diately. Only you, the consignee, may initiate a claim for
shipping damage. Crown will be happy to cooperate
fully as needed. Save the shipping carton as evidence
of damage for the shipper's inspection.
Even if the unit arrived in perfect condition, as most do,
save all packing materials so you will have them if you
ever need to transport the unit. NEVER SHIP THE UNIT
WITHOUT THE FACTORY PACK.
Reference Manual
Fig. 1.1 Macro-Tech Amplifier
1.2 Features
Macro-Tech amplifiers use cutting edge technology to
deliver the ultimate in power and value for their size,
weight and price. They offer numerous advantages over
conventional designs and provide benefits you can't get
®
protection
in amplifiers from any other manufacturer.
Here are some of their many features:
❏ Crown's Grounded Bridge ™ design delivers large voltage
swings without using easily stressed output-transistor con-
figurations like conventional amplifiers. The results are
lower distortion and superior reliability.
❏ Patented ODEP (Output Device Emulation Protection) cir-
cuitry compensates for overheating and overload to keep
the amplifier working when others would fail.
❏ IOC
®
alerts of any distortion exceeding 0.05%, providing dy-
namic proof of distortion-free performance .
❏ PIP (Programmable Input Processor) connector accepts
accessories that tailor the amplifier to suit specific appli-
cations.
❏ Enhanced PIP2
connector accepts new accessory modules that further
tailor the amplifier to suit specific applications,
including wideband load current monitoring. . . . .
❏ Two mono modes (Bridge-Mono and Parallel-Mono) for
driving a wide range of load impedances.
❏ Very low harmonic and intermodulation distortion result in
the best dynamic transfer function in the industry.
❏ High damping factor provides superior control over low-
frequency drivers for a clean, accurate low end.
❏ Full protection against shorted outputs, mismatched
loads, input/output DC, general overheating, high-fre-
quency overloads and internal faults.
❏ Dedicated power supply transformers isolate channels in
Stereo mode for superb crosstalk characteristics and reli-
ability—each channel is virtually a separate amplifier.
❏ Balanced inputs with internal three-position sensitivity
(Input/Output Comparator) circuitry immediately
™ ™ ™ ™ ™
(Programmable Input Processor)
Page 7
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