McIntosh MX121 Owner's Manual page 17

Audyssey Auto Setup Information
®
The acoustic characteristics of the connected speak-
ers and listening room are measured and the optimum
settings are made automatically.
Assemble the supplied setup microphone and stand,
then place it in the main listen-
ing position. Refer to the adjacent
figure.
Keep the following things in mind
during the Audyssey procedure:
1. When placing the setup micro-
phone, adjust the height of the
sound receptor to the level of the
listener's ear.
2. When performing Audyssey
Auto Setup, MultEQ XT/ Aud-
®
yssey Dynamic EQ / Audyssey
®
Dynamic Volume functions
®
become active.
3. Make the room as quiet as pos-
sible. Background noise can disrupt the room measure-
ments. Close windows, silence cell phones, televisions,
radios, air conditioners, fluorescent lights, home ap-
pliances, light dimmers, or other devices as measure-
ments may be affected by these sounds.
4. Cell phones should be placed away from all audio
electronics during the measurement process as Radio
Frequency Interference (RFI) may cause measurement
disruptions (even if the cell phone is not in use).
5. Do not unplug the setup microphone from the main
unit until Audyssey Auto Setup is completed.
6. Do not stand between the speakers and setup micro-
phone or allow obstacles in the path while the mea-
surements are being made. This will cause inaccurate
readings.
7. Loud test sounds may be played during Audyssey Auto
setup. This is part of normal operation. If there is
background noise in the room, these test signals will
increase in volume.
8. Do not adjust Volume during the measurements as this
will cancel the measurements.
9. Measurement cannot be performed when headphones
are connected.
10. Do not hold the setup microphone in your hand during
Setup Microphone
measurements.
11. Avoid placing the setup microphone close to a seat back
or wall as sound reflections may give inaccurate results.
Measurements will be performed by placing the setup
microphone succes-
Sound
receptor sively at multiple
positions through-
out the entire listen-
ing area. For best
results, we recom-
mend you measure
Microphone
in six or more posi-
Stand
tions, as shown in
the illustration (up
to eight positions)
about the main
listening position (*M).
Front speaker (L)
FL
Front speaker (R)
FR
Center speaker
C
Subwoofer
SW
The main listening position is the position where
listeners would normally sit or where one would nor-
mally sit alone within the listening environment. The
ideal Loudspeaker Placement in a room for the best
sonic effect is in the Side View Illustration:
FL SW C FR
* M
SL SR
SBL SBR
Surround speaker (L)
SL
Surround speaker (R)
SR
Surround back speaker (L)
SBL
Surround back speaker (R)
SBR
Front Height
Loudspeaker
Surround
Loudspeaker
A
45˚
Front
Front Wide
Loudspeaker Loudspeaker
Side View
Both the Front Height and Surround Back Loud-
speakers should be pointed slightly downward. Dolby
A
recommends the dimension be at least 3.3ft (1m).
B
The dimension should be between 2-3ft (60-90 cm).
Before starting Audyssey Auto Setup, place the
setup microphone in the main listening position. Aud-
yssey MultEQ XT uses the measurements from this
®
position to calculate speaker distance, level, polarity,
and the optimum crossover value.
When using a Powered Subwoofer(s) adjust the
controls on the Subwoofer for neutral settings, as
Audyssey will be making the adjustments of volume,
crossover frequency, etc. Refer to the Subwoofer Own-
ers Manual for additional information.
Proceed to "Audyssey Auto Setup Procedure" on
the next page.
Setup Mode
Surround Back
Loudspeaker
B
17