McIntosh MX151 Owner's Manual page 26

RoomPerfect, con't
Volume Calibration
Volume calibration
measuring, please wait...
Figure 27
Volume Calibration
Desired maximum
calibration volume
-4.0db (now -20.00dB)
Retry
Save Current
Abort
Figure 28
Volume Calibration
Calibration ok.
Continue
Abort
Figure 29
26
Note: The Desired maximum calibration volume
‡
(-4.0db) level and the current (now -20.00dB)
volume indications in figure 28 will prob-
ably be different in your room. The size of
your room, loudspeaker distance from the
microphone position and the efficiency of the
loudspeakers all effect the readings. If the test
signal was too loud, reduce it by using the Vol-
ume Control by 10dB (the example in figure 28
would now read -30.00dB). Select "Retry" then
"Save Current". If for some reason the volume
ˆ
level needs to be higher, a "Measuring Error"
will appear on the screen refer to figure 30.
Measuring Error
‡
Too much noise or too
Low signal
Volume -50.0dB
Retry
Abort
ˆ
6. Measure the distance from the microphone loca-
tion (Focus Position) to each of the Loudspeakers.
‡
Refer to figures 31 and 32. Using the Downq
Push-button, highlight the "L" Loudspeaker Posi-
tion and press the SELECT Push-button. Then
use the Upp or Downq Push-buttons to enter
the distance measurement. Use the Left
tional Push-button to highlight the "L" followed by the
Downq Push-button to highlight the "L" Loud-
speaker Position and enter the distance. When all
the active Loudspeakers Distance measurements
ˆ
have been entered select "Continue" and press the
‡
ˆ
Figure 30
◄ Direc-
Focus
Position
Distance between the Loudspeakers
and the Microphone Focus Position
Figure 31
Distance Settings
Unit in
Position Focus 1
L 0 in
C 0 in
R 0 in
Distance Settings
RS 0 in
RS 0 in
RBS 0 in
LBS 0 in
LS 0 in
SUB 0 in
Continue
Figure 32
‡
‡
ˆ