Specifications

program source that feeds the AREA A power amp and
speakers. This allows one to RECORD one program
source while LISTENING to another.
The input selections are PH/AUX, CD1, CD2, TUNER,
TAPE 1 and TAPE 2 for Audio. The Video inputs are
SAT, TV, LV, VCR1, VCR2 and V-AUX.
LOUDNESS
The LOUDNESS control, (small center knob), provides
frequency response contoured to compensate for the
behavior of the human ear at lower listening levels. At
the fully counterclockwise position, the loudness contour
is electrically flat. As the control is turned clockwise,
selected frequencies increase in the correct proportion
for proper listening at softer volume levels. The
frequency balance is not affected by changes in the
volume control settings. First adjust the volume for the
desired listening level. Then adjust the LOUDNESS
control for the preferred compensation. It effects the
LEFT FRONT, CENTER, RIGHT FRONT and SUBWOOFER
channels.
BALANCE
The BALANCE control, (large outer knob), adjusts the
volume of the channels relative to each other.
L, (left): Turning the control to the left accents the left
channel by reducing the volume of the right channel.
R, (right): Turning the control to the right accents the
right channel by reducing the volume in the left channel.
At the center detent position both channels are equal.
VOLUME CONTROL (Area "A)
A super precision volume control is required for
superior surround sound performance. Tracking over
its entire range must be almost perfect or the audio
image will shift. Therefore, McIntosh Engineers have
designed a volume control system that retains the
familiar VOLUME CONTROL KNOB but provides "state
of the art" performance. Tracking accuracy for all six
channels is within one quarter of a dB throughout most
of its range. It provides ±12dB of trim to all six
channels for accurate matching of amplifiers and
speakers. It has 256 steps for excellent resolution and
% of volume and the amount of trim are digitally
displayed on the front panel.
The volume control for area B is a 2 channel version
of area A without trim and display.
MODE SELECTOR
Five operating modes are provided, MONO STEREO,
HALL, CINEMA 1 (DOLBY PRO-LOGIC) and CINEMA 2
(THX). The CINEMA 1 and CINEMA 2 positions have
illuminated logos to indicate what surround processors
are in use. Since DOLBY PRO-LOGIC decoding is
necessary to generate the 4 channels for THX
processing the DOLBY logo remains ON in THX.
LEFT and RIGHT FRONT and SUBWOOFER outputs
are active in the MONO and STEREO modes.
LEFT and RIGHT FRONT, LEFT and RIGHT SUR-
ROUND, and SUBWOOFER outputs are active in the
HALL mode.
LEFT, CENTER and RIGHT FRONT, LEFT and RIGHT
SURROUND, and SUBWOOFER outputs are all active
in CINEMA 1 and CINEMA 2 modes.
CENTER FILL is provided in MONO, STEREO, and
HALL by placing the CENTER FILL switch on the rear
panel in the "ON" position.
DELAY SELECTOR
The delay selector provides variable surround delay.
The center position is the recommended setting for all
surround modes. In the CINEMA 1 (DOLBY PRO-LOGIC)
and CINEMA 2 (THX) modes the actual delay in
milliseconds is:
1 = 12.3mS
2 = 16.4mS
3 = 20.5mS
4 = 24.6mS
5 = 28.7mS
Any deviation from the center setting should be
determined by the listing position.
In the HALL mode the delay range is increased to
emulate the acoustics of various MUSIC HALLS, from
a night club to a stadium. The actual delay in
milliseconds is:
1 = 16.4mS
2 = 32.8mS
3 = 49.2mS
4 = 65.5mS
5 = 81.9mS
MclNTOSH LABORATORY INC., 2 CHAMBERS STREET, BlNGHAMTON, NEW YORK 13903
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