McIntosh MC 7300 User Manual

де
| ~The electrical and mechanical design of the
MC 7300 power amplifier is the result of the many
years of engineering and manufacturing experience
of the design staff at McIntosh. This "Know How”,
along with the meticulous attention to design and
production details, makes the MC 7300 one of the
finest amplifiers ever produced by McIntosh
Laboratory.
The use of 10 complimentary connected output
transistors per channel, allows not only full power
output
into
normal
loads,
but
extra
high
current
out-
-put to drive uneven speaker loads. Some speaker
designs
have
impedance
characteristics
that
may
dip
to
as
low
as
1
or
2
ohms
at
certain
frequencies.
It
is
‘possible for the MC 7300 to deliver as much as 85
amperes peak current into these lower impedance
loads.
The MC 7300 will supply this extra current output
with complete reliability due to the use of McIntosh
Sentry Monitor protection circuits. Some power
amplifier
manufacturers
have
claimed
that
their
pro-
ducts do not use protection circuits since they com-
promise performance. The real genius of McIntosh
engineering design has recognized these potential
problems and completely eliminated them. Properly
designed
protection
circuits
assure
you
an
amplifier
. hat 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 con-
tinue to operate safely for many years.
The MC 7300 output is so distortion free, it is dif-
ficult
to
measure
with
conventional
instruments.
The
performance limit is 0.005% maximum distortion, yet
it is typical for an amplifier to measure less than
0.00296 at mid frequencies.
The power output watt meters on the MC 7300 are
peak responding, and indicate the TRUE power out-
put of the amplifier. The MC 7300 meter circuits are
constantly measuring both voltage and current
delivered into the speaker loads. A speaker may have
a different load impedance at different frequencies,
resulting in a change of output current. The MC 7300
meters properly react to this condition and indicate
Real Output power.
Other desirable features are included such as high
current gold plated output terminals that will accept
cable
up
to
0.204
inches
in
diameter.
Balanced
input
connectors
are
also
provided
in
addition
to
the
nor-
mal RCA inputs.
As in all Mcintosh power amplifiers, the famous
patented McIntosh POWER GUARD circuit is includ-
ed. You never have to be concerned with amplifier
overdrive
when
playing
wide
dynamic
range
program
sources such as compact discs.
Refer to the technical description for a full account
of all the outstanding circuit and performance
features of this superb power amplifier.
INTRODUCTION
3

McIntosh MC 7300 Specifications

General

Brand	McIntosh
Model	MC 7300
Category	Amplifier
Language	English