User's Manual

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DTS
DTS is a digital audio system capable of delivering 5.1 or 6.1 discrete or matrix sound field
reproduction. Although both DTS and Dolby Digital are digital, they use different methods of
encoding the signals, and thus they require different decoding circuits to convert the digital
signals back to analog.
DTS-encoded soundtracks are available on select DVD and LD discs, as well as on audio-only
DTS discs. You may use any LD or CD player equipped with a digital output to play DTS-encoded
discs with the AVR21EN. All that is required is to connect the player’s output to either an Optical
[circle 24, square 13] or Coaxial Inputs [circle 19, square 16] on the AVR rear panel or front
panel.
In order to listen to DVDs encoded with DTS soundtracks, the DVD player must be compatible
with the DTS signal, which is indicated by the “DTS Digital Out” logo on the player’s front panel.
Some early DVD players were not able to play DTS-encoded DVDs. This does not indicate a
problem with the AVR21EN, as those players cannot pass through the DTS signal. If you’re in
doubt as to the capability of your DVD player to handle DTS discs, consult the player’s owner’s
manual.
IMPORTANT NOTE: Many DVD players have a default setting that does not pass through the
DTS data, even though the machine is capable of doing so. If your DVD player has the “DTS
Digital Out” logo but does not trigger DTS playback in the AVR21EN, change the player’s settings
in the “Audio” or “Bitstream” configuration menu so that DTS playback is enabled. The method for
doing this will vary with each player. In some cases, the proper menu choice will be “Original,”
while in others it will be “DTS.” Consult the owner’s manual for your player to find the specific
information to find the proper setting.
Selecting a Digital Source
To utilize either digital mode, you must have properly connected a digital source to the AVR21EN.
Connect the digital outputs from DVD players, HDTV receivers, satellite systems or CD players to
the Optical [circle 24, square 13] or Coaxial Inputs [circle 19, square 16] . In order to provide
a backup signal and a source for multiroom audio signal distribution and analog stereo recording,
the analog outputs provided on digital source equipment should also be connected to their
appropriate inputs on the AVR21EN rear panel (e.g., connect the analog stereo audio output from
a DVD to the Disc 1, 2 or 3 Audio Inputs [circles 1, 2, 3] on the rear panel when you connect
the source’s digital outputs).
If you have not already configured an input for a digital source using the on-screen menus as
described in AVR21EN Configuration/Source Audio Input, first select the desired input using
the remote or front-panel controls, as outlined in this manual. Next, press the Audio Input
Button [oval 11] and then using the ▼/▲Navigation Button [oval 16] on the remote or the
◄/► Mode Adjust Buttons [squares 7, 9] on the AVR front panel, choose any
OPTICAL or
COAXIAL inputs, as they appear in the AVR Upper Display Line [square 33] or on-screen
display. When the digital source is playing, the AVR21EN will automatically detect which type of
digital data stream is being decoded and briefly display that information in the Lower Display
Line [square 34] before changing to display surround mode.
When both a digital and an analog connection are made between a source device and the AVR,
the digital input is the default. If the digital stream is not present or is interrupted, the unit will
automatically switch over to the analog inputs for the selected source.
Digital Bitstream and Surround Mode Indications
When a digital source is playing, the AVR senses the type of bitstream data that is present. Using
this information, the correct surround mode will automatically be selected. For example, DTS
bitstreams will cause the unit to switch to DTS decoding, and Dolby Digital bitstreams will enable