The VCR1, VCR2, TAPE 1, TAPE 2 and Area "B" Outputs are not affected by the front panel
VOLUME Control.
G. LOUDNESS and BALANCE (Concentric Controls)
BALANCE control, (large outer knob): Adjusts the volume of the Left and Right channels
relative to each other. The BALANCE control affects only the LEFT FRONT, RIGHT FRONT
Unbalanced, LEFT and RIGHT Balanced, Area "A" Outputs and the six channel connector.
The BALANCE Control is effective in all five modes of operation.
L, (Left): Turn the control to the left to accent the left channels by reducing the volume
of the right channels.
R, (Right): Turn the control to the right to accent the right channels by reducing the volume
of the left channels.
The VCR1, VCR2, TAPE 1, TAPE 2 and Area "B" Outputs are not affected by the BALANCE
Control.
LOUDNESS control, (small inner knob): Provides frequency response contoured to com-
pensate for the behavior of the human ear at softer listening levels. At the fully
counterclockwise detent position, the frequency response is perfectly flat and the loudness
circuit components are removed from the signal path. Turn the control clockwise to modify
the frequency response in the correct proportion required for softer listening levels. The com-
pensated frequency response is not affected by changes in the volume control settings. First
adjust the VOLUME Control for the desired listening level, then adjust the LOUDNESS Con-
trol to the setting you personally prefer.
The LOUDNESS Control affects the LEFT FRONT, CENTER, RIGHT FRONT, SUBWOOFer
Unbalanced, LEFT and RIGHT Balanced outputs and the corresponding outputs on the 6
CHANNEL Connector. These are Area "A" Outputs. The LOUDNESS Control is effective in
all five modes of operation.
The VCR1, VCR2, TAPE 1, TAPE 2 and Area "B" Outputs are not affected by the LOUDNESS
Control.
NOTE: The flat frequency response setting of the LOUDNESS Control is at the FULLY
COUNTER CLOCKWISE position, not at the center or 12 o'clock position where the
BALANCE Control is neutral.
H. SYS CAL, SYStem CALibrate, (SUR CAL)
Allows the volume level of all six channels to be accurately set using the built-in C39 noise
generator. Calibration includes individual channel volume level adjustment or trimming which
may be required due to room geometry or differences in amplifiers or speakers. The calibra-
tion can be done by cycling through the six channels automatically or manually, depending
on the setting of the C39 rear panel SURROUND CALIBRATE switch. The chosen level calibra-
tion settings are then retained in the Control Center memory.
Surround sound calibration is possible in the HALL, CINEMA 1 and CINEMA 2 Modes.
Normal listening levels and surround calibration volume levels can be set as you desire
for HALL or CINEMA 1 Modes. For CINEMA 2 or Home THX® Audio Mode, the re-
quirements are more specific. Refer to the manual section "MclNTOSH HOME
THEATER SURROOUND SOUND VOLUME LEVEL CALIBRATION" for calibration pro-
cedures for both CINEMA 1 and CINEMA 2.
An LED lights above the SYS CAL, (SUR CAL), pushbutton during calibration operation.
11
FRONT PANEL
CONTROLS,
SWITCHES
AND
PUSHBUTTONS
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