Pioneer SC-LX82 - Manual (Page 141)

Additional information 13
141
En
About THX
The THX technologies are explained below. See
www.thx.com for more detailed information.
In case of SC-LX82
In case of SC-LX72
• THX Cinema processing
THX is an exclusive set of standards and technologies established by
THX Ltd. THX grew from George Lucas’ personal desire to make your
experience of the film soundtrack, in both movie theatres and in your
home theatre, as faithful as possible to what the director intended.
Movie soundtracks are mixed in special movie theatres called
dubbing stages and are designed to be played back in movie theatres
with similar equipment and conditions. This same soundtrack is then
transferred directly onto Laserdisc, VHS tape, DVD, etc., and is not
changed for playback in a small home theatre environment. THX
engineers developed patented technologies to accurately translate
the sound from the movie theatre environment into the home,
correcting the tonal and spatial errors that occur. On this product,
when the THX indicator is on, THX features are automatically added
in Cinema modes (e.g. THX Cinema, THX Surround EX).
• Re-Equalization
The tonal balance of a film soundtrack will be excessively bright and
harsh when played back over audio equipment in the home because
film soundtracks were designed to be played back in large movie
theaters using very different professional equipment. Re-Equalization
restores the correct tonal balance for watching a movie soundtrack in
a small home environment.
• Timbre Matching
The human ear changes our perception of a sound depending on the
direction from which the sound is coming. In a movie theatre, there is
an array of surround speakers so that the surround information is all
around you. In a home theatre, you use only two speakers located to the
side of your head. The Timbre Matching feature filters the information
going to the surround speakers so that they more closely match the
tonal characteristics of the sound coming from the front speakers. This
ensures seamless panning between the front and surround speakers.
• Adaptive Decorrelation
In a movie theatre, a large number of surround speakers help create
an enveloping surround sound experience, but in a home theatre
there are usually only two speakers. This can make the surround
speakers sound like headphones that lack spaciousness and
envelopment. The surround sounds will also collapse into the closest
speaker as you move away from the middle seating position. Adaptive
Decorrelation slightly changes one surround channel’s time and
phase relationship with respect to the other surround channel. This
expands the listening position and creates—with only two speakers—
the same spacious surround experience as in a movie theatre.
• THX Ultra2 Plus
Before any home theatre component can be THX Ultra2 Plus certified,
it must incorporate all the features above and also pass a rigorous
series of quality and performance tests. Only then can a product
feature the THX Ultra2 Plus logo, which is your guarantee that the
Home Theatre products you purchase will give you superb
performance for many years to come. THX Ultra2 Plus requirements
cover every aspect of the product including pre-amplifier and power
amplifier performance and operation, and hundreds of other
parameters in both the digital and analog domain.
• THX Select2 Plus
Before any home theatre component can be THX Select2 Plus
certified, it must incorporate all the features above and also pass a
rigorous series of quality and performance tests. Only then can a
product feature the THX Select2 Plus logo, which is your guarantee
that the Home Theatre products you purchase will give you superb
performance for many years to come. THX Select2 Plus requirements
cover every aspect of the product including pre-amplifier and power
amplifier performance and operation, and hundreds of other
parameters in both the digital and analog domain.
SC-LX82_LX72.book Page 141 Thursday, April 23, 2009 7:05 PM