28
Remote Control Batteries
The Remote Control, part number HR088, included
with the MX123 is powered by two AAA batteries.
To insert or remove batteries, open the battery
compartment by removing the cover located on the
back of the Remote Control. To open, pull the clasp
located just above the opening downward.
Audyssey
®
Audyssey
®
is an intelligent system which will fine-
tune your system to properly interact with the room’s
Figure 17– Audyssey
®
main listening position
acoustics through precise calibration. This will get
the highest possible performance from your complete
system providing a tighter and more detailed sound
with increased imaging.
Audyssey LFC™ solves the problem of low frequency
sounds disturbing people in neighboring rooms or
apartments. Audyssey LFC™ dynamically monitors
the audio content and removes the low frequencies
that pass through walls, floors and ceilings. It then
applies psychoacoustic processing to restore the
perception of low bass for listeners in the room.
The result is great sound that no longer disturbs the
neighbors.
The MX123 has two subwoofer Output capability
and can adjust the level and delay for each subwoofer
individually. Audyssey Sub EQ HT™ makes the
integration seamless by first compensating for
any level and delay differences between the two
subwoofers and then applying Audyssey MultEQ
®
XT32 to both subwoofers together for improved deep
bass response and detail.
Audyssey
®
Setup uses multiple measurement locations
in the listening room to achieve the best possible
acoustical results. The Focus Position or Main
Listening Position is typically where one would be
during serious viewing/listening.
∗1
∗2
∗3
∗4 ∗5
Point slightly
downwards
Front height
speaker
∗
1 30° - 45°
∗
4 125° - 150°
∗
2 30° - 55°
∗
3 65° - 100°
∗
5 135° - 150°
(Viewed from the side)
Top middle speaker
Top front speaker
Top rear speaker
Front speaker
Surround
speaker
Surround
back
speaker
Front wide
speaker
Point slightly
downwards
Rear height
speaker
Figure 18– Speaker angles
Before proceeding with Audyssey
®
Auto Setup, it
is very important to first go into the Setup Mode
to establish the correct settings for your specific
Loudspeaker complement and location in the Home
Theater Room. This will not only assure the best
acoustic performance using Audyssey
®
Room
Equalization Correction, but it will also assure the best
sonic performance using the latest in surround sound
technology built into the MX123.
The acoustic characteristics of the connected speakers
and listening room are measured and the optimum
settings are made automatically.
Audyssey
®
Setup
Assemble the supplied setup microphone and stand,
then place it in the Main Listening Position or Focus
Position. See Figure 17 on page 28.
For best results:
• Make the room as quiet as possible. Background
noise can disrupt the room measurements. Close
windows and turn off the power on electronic
devices (radios, air conditioners, fluorescent
lights, etc.). The measurements could be
affected by the sounds emitted by such devices
• During the measurement process, place cell
phones outside the listening room. Cell phone
signals could disrupt the measurements
• Do not stand between the speakers and Sound
calibration microphone or allow obstacles in the
path while the measurements are being made.
Also, install the Sound calibration microphone
at least 20 inches (50cm) away from the
wall. Failure to do so will result in inaccurate
readings
• During the measurement process, audible
test tones will come from the speakers and
subwoofer(s), but this is part of normal
Focus
Position
Distance between the Loudspeakers (at Ear Level)
and the Microphone Focus Position
