Mclntosh has earned world renown for its technical contributions to improved sound
reproduction. When you bought Mclntosh, you bought not only high technology, but also
technological integrity proven by time. The Mclntosh C712 System Control Center is another
example of Mclntosh engineering excellence.
Mclntosh audio products are always designed for the best sound and superior reliability.
Dedication to achieving these goals since 1949, has earned Mclntosh the reputation for
creating the finest quality products in the stereo industry. The Mclntosh "Classic" design
has also been recognized as the most outstanding in the industry.
Mclntosh products are designed to be maximum user friendly so anyone can enjoy using
them. Another Mclntosh design policy is to provide products that are easy to maintain.
The C712 System Control Center is simple, yet elegant. There are many useful features
to enhance your listening enjoyment. The C712 is fully remote controlled and all operating
functions can be performed at the front panel, from the Hand Held Remote Controller or from
a wall mounted Keypad.
There are seven pairs of high level inputs to accommodate the traditional program sources
as well as the most recent new sources. These include CD players, audio signals from laser
disc players and audio from video recorders. A PHONO input is also provided for a record
player with a magnetic phono cartridge. If the PHONO is not used, the AUX input can accom-
modate another high-level program source.
DIGITAL LOGIC integrated circuits drive ELECTROMAGNETIC SWITCHES on all inputs and
operating functions for the most reliable, lowest distortion switching available today.
Two TAPE MONITOR switches allow the use of two separate tape recorders. Two TAPE COPY
switches are also provided for easy tape copying from one recorder to the other. A continuously
variable Active Loudness control allows loudness compensation to be selected for any set-
ting of the volume control. The Loudness control circuit elements are removed from the signal
path when the control is in the flat or fully counterclockwise position.
Bass and Treble tone controls provide 12dB of boost or cut. At the center or detent position
of the tone controls, all tone control circuits are removed from the signal path. Other features
include a front panel Headphone output, a Mono switch and rear panel Signal Processor Loop
connections that affect the main outputs. Power supply voltage regulator circuits maintain
stable operation even though the AC power line may vary. A double shielded power transformer
completely isolates it from the audio circuits.
A pair of Balanced Outputs is also included to take advantage of the greater noise reduc-
tion capabilities of balanced cables.
The C712 can be placed upright on a table or shelf, standing on its own plastic feet. It
also can be installed in an optional Mclntosh L70 equipment cabinet. Follow the mounting
instructions enclosed with the L70 cabinet.
The C712 also can be custom installed in a piece of furniture or cabinet of your choice.
The required panel cutout and unit dimensions are shown on a page further back in this manual.
Always provide adequate ventilation for your C712, even though it develops very little heat.
Cool operation insures the longest possible operating life for any electronic instrument. Do
not install your C712 directly above a heat generating component such as a high powered
amplifier. In a system stack, the power amplifier should always be at the top. If all the com-
onents are installed in a single cabinet, a quiet running ventilation fan can be a definite asset
INTRODUCTION
HOW TO
INSTALL
THE
C712
5
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