Since CINEMA DSP and THX are different surround
post-processing technologies, we recommend the
following speaker setup in order to enjoy the best surround
sound of each technology.
CINEMA DSP speaker layout
more than 30 cm (12 in.)
The speaker layout above shows the standard ITU-R speaker
setup. You can use it to enjoy CINEMA DSP, multi-channel
audio sources and THX.
1.8 m (6 ft)
Front speakers (FR and FL)
The front speakers are used for the main source sound.
Place these speakers an equal distance from the ideal
listening position. The distance of each speaker from each
side of the video monitor should be the same.
1.8 m (6 ft)
Center speaker (C)
The center speaker is for the center channel sounds
(dialog, vocals, etc.). Align the front face of the center
speaker with the front face of your video monitor. Place
the speaker centrally between the front speakers and as
close to the monitor as possible, such as directly over or
Surround speakers (SR and SL)
The surround speakers are used for effect and surround
sounds. Place these speakers behind your listening
position, facing slightly inwards, about 1.8 m (6 ft) above
Surround back speakers (SBR and SBL)
The surround back speakers supplement the surround
speakers and provide for more realistic front-to-back
transitions. Place these speakers directly behind the
listening position and at the same height as the surround
speakers. They should be positioned at least 30 cm (12 in.)
apart. Ideally, they should be positioned at the same width
as the front speakers.
The use of a subwoofer, such as the YAMAHA Active
Servo Processing Subwoofer System, is effective not only
for reinforcing bass frequencies from any or all channels,
but also for high fidelity reproduction of the LFE (low-
frequency effect) channel included in Dolby Digital and
DTS software. The position of the subwoofer is not so
critical, because low bass sounds are not highly
directional. But it is better to place the subwoofer near the
front speakers. Turn it slightly toward the center of the
room to reduce wall reflections.
Presence speakers (PR and PL)
Presence speakers supplement the sound from the front
speakers with extra ambient effects produced by CINEMA
DSP (see page 38). These effects include sounds that
filmmakers intend to locate a little farther back behind the
screen in order to create more theater-like ambience. Place
these speakers at the front of the room about 0.5 - 1 m
(1 - 3 ft) outside the front speakers, facing slightly
inwards, and about 1.8 m (6 ft) above the floor.