SILENT ELECTROMAGNETIC SWITCHING. In a conventional preamp, an input signal travels
to a switch, and then travels to the input circuitry. Unfortunately, the farther a signal must travel,
the more distorted it becomes. And this says nothing of what detritus a dirty switch can add to
the signal. McIntosh Silent Electromagnetic Switching literally brings the switch to the input.
The distortion-free switch consists of a glass tube containing oxygen-free gas and two signal
leads separated by mere thousandths of an inch. The tube sits in a multilayer copper coil and
the entire assembly is encased in shock-absorbent plastic. When DC voltage is applied to the
coil in response to a switching command, current flow creates a magnetic field that causes the
leads to bend and contact one another, completing the circuit. The inert gas eliminates corrosion
of the contacts, ensuring a low-resistance, distortion-free switch that never needs cleaning.
Another benefit is that non-selected inputs are truly “off,” eliminating potential sources of
interference.
PRECISION-TRIMMED VOLUME CONTROL. Level differences among channels in a stereo or
surround system compromise sound imaging. The left and right sections of McIntosh volume
controls are electronically trimmed for superior tracking.
EXCLUSIVE MCINTOSH TONE CONTROLS. These offer ±12dB adjustments with fine resolution,
yet in the “flat” position are completely removed from the signal path.
CONTROL DATA OUTPUTS. To facilitate system integration, the MA6500 outputs control
data for source components. This allows remote operation of non-McIntosh components either
by direct connection to compatible data inputs or via a McIntosh Remote Translator.
REMOTE POWER CONTROL. This enables the MA6500 to turn other McIntosh system com-
ponents on/off.
Featured Technologies (cont’d.)
About the MA6500 Companion Products
The McIntosh products shown at right are logical companions for the MA6500. Separate literature
is available. Check with your McIntosh dealer for any late additions. McIntosh speaker systems
are also covered in detail in separate literature.
MR7084 AM/FM Tuner. A natural companion for integrated amplifiers, the MR7084 tuner is a
thoroughly engineered broadcast monitor that reveals the upper limits of AM and FM performance.
MVS3 A/V Selector. The MVS3 connects to the VIDEO data output of the MA6500 and accom-
modates five additional A/V sources.
RCT3 Remote Translator. The Translator allows non-McIntosh components to be operated with
a McIntosh handheld remote or keypad. It connects to the data outputs on the MA6500.
PC4 AC Power Controller. The PC4 provides five AC outlets (four switched) for turning non-
McIntosh components on and off automatically when it is connected to the power control output
of a Control Center or Integrated Amplifier.
HC1 Home Controller. The HC1 connects to the HOME data output and allows operation of other
devices such as lights and movie screens via a McIntosh handheld remote or keypad controller.
WK2 Keypad Controller or R649 IR Sensor. With switching for two pairs of speakers, the
MA6500 can feed music to a second zone, with operation via keypad or sensor.
MA6500 Companions
MR7084 AM/FM TUNER
MVS3 A/V SELECTOR
RCT3 REMOTE TRANSLATOR
PC4 AC POWER CONTROLLER
HC1 HOME CONTROLLER
WK2 KEYPAD CONTROLLER
R649 IR SENSOR
The input selectors on McIntosh Control
Centers actually control state-of-the-art
silent electromagnetic switches.
lead
coil
sealed glass tube
circuit completes
when leads touch
lead
switching command causes DC voltage at coil
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Power Output
Weight and Dimensions
