McIntosh MC7100, Руководство пользователя

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The electrical and mechanical design of the MC7100 Power Amplifier is the result of the
many years of engineering and manufacturing experience of the design staff at Mclntosh.
This "Know How", along with the meticulous attention to design and production details, makes
the MC7100 one of the finest amplifiers ever produced by Mclntosh Laboratory.
The use of 4 complimentary connected output transistors per channel, allows not only full
power output into normal loads, but extra high current output to drive uneven speaker loads.
Some speakers have design characteristics that cause them to dip below their rated im-
pedances at certain frequencies. It is possible for the MC7100 to deliver as much as 18
amperes peak current into these lower impedance loads.
The MC7100 provides this extra current output with complete reliability due to the use of
Mclntosh Sentry Monitor protection circuits. Some power amplifier manufacturers have claimed
that their products do not use protection circuits since they compromise performance. The
real genius of Mclntosh engineering design has recognized these potential problems and com-
pletely eliminated them. Properly designed protection circuits assure you an amplifier that
will operate under all types of user conditions with maximum reliability and freedom from
possible speaker or amplifier damage. The benefits of these designs mean you own an amplifier
that will continue to operate safely for many years.
The MC7100 output is so distortion free, it is difficult to measure with conventional in-
struments. The performance limit is 0.005% maximum distortion, yet it is typical for an amplifier
to measure as low as 0.002% at mid frequencies into 8 ohms.
As in all Mclntosh power amplifiers, the famous patented Mclntosh POWER GUARD cir-
cuit is included. You never have to be concerned with possible amplifier overdrive. You will
not experience amplifier clipping with its harsh speaker damaging distortion when playing
wide dynamic range program sources such as compact discs.
Many other desirable features are included such as gold plated output terminals, DC out-
put protection, thermal protection and a turn on delay circuit. A Toroidal wound power
transformer permits a low profile design with quiet cool operation.
Refer to the section in this manual titled TECHNICAL DESCRIPTION for detailed informa-
tion on all the outstanding circuit and performance features of the MC7100.
INTRODUCTION
LOCATION
The MC7100 may be installed on a shelf or table, in a Mclntosh cabinet, or custom install-
ed in furniture of your choice. Always provide adequate ventilation for the amplifier. The trou-
ble free life of any electronic instrument is greatly extended by providing sufficient ventila-
tion. This prevents build-up of internal temperatures that can cause deterioration of circuit
components. The Mclntosh cabinet design allows for proper ventilation.
Allow enough clearance so cool air can enter at the bottom of the cabinet and be vented
from the top. Provide at least 1 1/2 inches (3.8cm) above the amplifier heat sink area so airflow
is not obstructed. The recommended minimum space for installation is 18 1/2 inches (47cm)
wide, 14 1/2 inches (36.8cm) deep, (including connectors) and 4 1/2 inches (11.5cm) high.
Allow 1 inch (2.54cm) in front of the mounting surface for panel clearance.
McINTOSH PANLOC MOUNTING SYSTEM
The PANLOC system of installing equipment is a product of Mclntosh research. Two steel
PANLOC mounting shelves are attached to the front panel at each side of the panel cutout,
using the screws and brackets provided. The amplifier has runners on the bottom of its chassis,
INSTALLATION
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