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Reference Manual
Macro-Tech
®
24x6 & 36x12 Power Amplifiers
Fig. 1.1 Macro-Tech 36x12 Amplifier
1 Welcome
Congratulations on your purchase of a
Macro-Tech
®
dual level professional power amplifier. Your amplifier
has a separate high-power and medium-power chan-
nel, making it ideal for biamplified systems. The Macro-
Tech 24x6 combines one channel of a Macro-Tech 2400
with one channel of a Macro-Tech 600. The Macro-Tech
36x12 combines one channel of a Macro-Tech 3600VZ
with one channel of a Macro-Tech 1200. And because
each model has a separate power supply for each
channel, each channel can be treated as a separate
power amplifier.
As a member of the Macro-Tech family, your amplifier
offers the added benefit of
ODEP
®
protection which
keeps the show going long after other amps would ther-
mal off and Programmable Input Processor (PIP
™
) com-
patibility to accept custom input modules (see Section
8 for available input modules).
This manual will help you successfully install and use
your new amplifier. We strongly recommend you read
all instructions, warnings and cautions contained within.
Also for your protection, please send in your warranty
registration card today and save your bill of sale be-
cause 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.
1.2 Features
Here are some of the impressive features:
❏
Crown’s
Grounded Bridge
™
design delivers incredible
voltage swings without using stressful output transistor
configurations 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 long after others would fail.
❏
IOC
®
(Input/Output Comparator) circuitry immediately
alerts of any distortion exceeding 0.05%, providing
dynamic
proof of distortion-free performance.
❏
PIP connector accepts accessories that tailor the
amplifier to suit specific applications.
❏
Very low harmonic and intermodulation distortion give
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, open circuits,
DC, mismatched loads, general overheating, high
frequency overloads and internal faults.
❏
Extra rugged, extruded aluminum front panel with
ODEP and Signal Presence/IOC indicators for each
channel, as well as an Enable indicator.
❏
Macro-Tech 36x12:
Articulated VZ power supply for
Channel 1 (3600) provides the best power matching to
your load.
❏
Efficient heat sinks and forced air cooling prevent
overheating and prolong component life.
❏
Balanced inputs with three-position sensitivity switch
and adjustable front panel level controls.
❏
5-way binding post outputs provide versatile
connection.
❏
Mounts in a standard 19-inch (48.3-cm) equipment
rack (units can also be stacked).
❏
Three Year “No-Fault” Full Warranty completely
protects your investment and guarantees its
specifications.
