Pioneer VSX-32 User Manual

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THX Surround EX - Dolby Digital Surround EX is a joint development 
of Dolby Laboratories and the THX Ltd. In a movie theater, film 
soundtracks that have been encoded with Dolby Digital Surround EX 
technology are able to reproduce an extra channel which has been 
added during the mixing of the program. This channel, called 
Surround Back, places sounds behind the listener in addition to the 
currently available front left, front center, front right, surround right, 
surround left and subwoofer channels. This additional channel 
provides the opportunity for more detailed imaging behind the 
listener and brings more depth, spacious ambience and sound 
localization than ever before. Movies that were created using the 
Dolby Digital Surround EX technology, when released into the home 
consumer market may exhibit wording to that effect on the 
packaging. A list of movies created using this technology can be 
found on the Dolby web site at www.dolby.com.
Only amplifier and controller products bearing the THX Surround EX 
logo, when in the THX Surround EX mode, faithfully reproduce this 
new technology in the home.
This product may also engage the “THX Surround EX” mode during 
the playback of 5.1 channel material that is not Dolby Digital 
Surround EX encoded. In such case the information delivered to the 
Surround Back channel will be program dependent and may or may 
not be very pleasing depending on the particular soundtrack and the 
tastes of the individual listener.

Depending on the listener’s and the subwoofer’s position, the listener 
may experience an excessive bass effect. This feature compensates 
for excessive bass resulting from a boundary gain effect. This feature 
is designed to operate when used with a subwoofer certified to THX 
Select2™ specifications. 

THX Loudness Plus is a new volume control technology featured in 
THX Ultra2 Plus™ and THX Select2 Plus™ Certified amplifiers. With 
THX Loudness Plus, home theater audiences can now experience the 
rich details in a surround mix at any volume level. A consequence of 
turning the volume below Reference Level is that certain sound 
elements can be lost or perceived differently by the listener. THX 
Loudness Plus compensates for the tonal and spatial shifts that occur 
when the volume is reduced by intelligently adjusting ambient 
surround channel levels and frequency response. This enables users 
to experience the true impact of soundtracks regardless of the volume 
setting. THX Loudness Plus is automatically applied when listening in 
any THX listening mode. The new THX Cinema, THX Music, and THX 
Games modes are tailored to apply the proper THX Loudness Plus 
settings for each type of content.

ASA is a proprietary THX technology which processes the sound fed 
to 2 side and 2 back surround speakers to provide the optimal 
surround sound experience. When you set up your home theater 
system using all eight speaker outputs (Left, Center, Right, Surround 
Right, Surround Back Right, Surround Back Left, Surround Left and 
Subwoofer), be sure to go to the THX Audio Set-up screen and choose 
the setting that most closely corresponds to the speaker spacing, 
which will re-optimize the surround sound-field. ASA is used in three 
modes; THX Ultra2 Cinema, THX Ultra2 Music and THX Ultra2 Games. 

THX Select2 Cinema mode plays 5.1 movies using all 8 speakers 
giving you the best possible movie watching experience. In this mode, 
ASA processing blends the side surround speakers and back 
surround speakers providing the optimal mix of ambient and 
directional surround sounds.
DTS-ES (Matrix and 6.1 Discrete) and Dolby Digital Surround EX 
encoded soundtracks will be automatically detected in Select2 
Cinema mode if the appropriate flag has been encoded. 

Some Dolby Digital Surround EX soundtracks are missing the digital 
flag that allows automatic switching. If you know that the movie that 
you are watching is encoded in Surround EX, you can manually select 
the THX Surround EX playback mode, otherwise THX Select2 Cinema 
mode will apply ASA processing to provide optimum replay. 

For the playback of multi-channel music the THX Select2 Music mode 
should be selected. In this mode THX ASA processing is applied to the 
surround channels of all 5.1 encoded music sources such as DTS, 
Dolby Digital and DVD-Audio to provide a wide stable rear 
soundstage. 

For the playback of stereo and multi-channel game audio the THX 
Select2 Games mode should be selected. In this mode THX ASA 
processing is applied to the surround channels of all 5.1 and 2.0 
encoded game sources such as analog, PCM, DTS and Dolby Digital. 
This accurately places all game audio surround information, 
providing a full 360 degree playback environment. THX Select2 Games 
mode is unique as it gives you a smooth transition of audio in all 
points of the surround field. 

“Made for iPod” means that an electronic accessory has 
been designed to connect specifically to iPod and has 
been certified by the developer to meet Apple 
performance standards.

“Works with iPhone” means that an electronic accessory 
has been designed to connect specifically to iPhone and 
has been certified by the developer to meet Apple 
performance standards.

Apple is not responsible for the operation of this device or 
its compliance with safety and regulatory standards.

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