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Much of the AVR 1600’s performance is handled automatically,
with little intervention required on your part. The AVR 1600 is
capable of being customized to suit your system and your tastes.
In this section, some of the more advanced adjustments available
AUDIO PROCESSING AND SURROUND
Audio signals output by sources are encoded in a variety of formats
that can affect not only the quality of the sound but the number of
speaker channels and the surround mode. You may also manually
select a different surround mode, when available.
Analog Audio Signals
Analog audio signals usually consist of two channels – left and
right. The AVR 1600 offers three options for playback:
1. Analog Bypass Mode: The 2-channel signal is passed
directly from the input to the volume control, without being
digitized or undergoing any processing for bass management
or surround sound. To select analog bypass mode:
a) The analog audio inputs for the source must be selected.
If necessary, with the remote in AVR device mode, press
the Digital Select Button and use the Buttons to select
b) The tone controls must be disabled by turning off the TONE
setting. With the remote in AVR device mode, press the Tone
Button and use the Buttons to select “TONE OUT”.
c) The 2-channel Stereo mode must be selected. Press the
OSD Button, and use the Buttons to select “SURROUND
SELECT”. Press the OK Button. Use the Buttons to select
“STEREO”, and press the OK Button. Use the Buttons
to select either the 2- or 7-Channel Stereo mode.
2. DSP Surround Off Mode: The DSP Surround Off mode
digitizes the incoming signal and applies the bass management
settings, including speaker configuration, delay times and output
levels. Select this mode when your front speakers are small,
limited-range satellites and you are using a subwoofer. To select
this mode, use a digital audio input, or set the TONE setting to
IN, and select 2-channel Stereo mode.
3. Analog Surround Modes: The AVR 1600 is able to
process 2-channel audio signals to produce multichannel
surround sound, even when no surround sound has been
in the recording. Among the available modes are the Dolby
Pro Logic II/IIx modes, the Harman Virtual Speaker modes, the
DTS Neo:6 modes, the Logic 7 modes and the Stereo modes.
Digital Audio Signals
Digital audio signals offer greater capacity, which allows the
encoding of center and surround channel information directly
into the signal. The result is improved sound quality and startling
directionality, since each channel is reproduced discretely.
Even when only two channels are encoded, the digital signal
allows for a higher sampling rate that delivers greater detail.
High-resolution recordings sound extraordinarily distortion-free,
especially at high frequencies.
Surround mode selection is dependent upon the format of the
incoming audio signal, as well as personal taste. Table A9 offers a
brief description of each mode and indicates the types of incoming
signals or digital bitstreams the mode may be used with. Additional
information about the Dolby and DTS modes is available on the
companies’ Web sites: www.dolby.com and www.dtsonline.com.
When in doubt, check the jacket of your disc for more information
on which surround modes are available. Usually, nonessential
sections of the disc, such as trailers, extra materials or the disc
menu, are only available in Dolby Digital 2.0 (2-channel) or PCM
2-channel mode. If the main title is playing and the display shows
one of these surround modes, look for an audio or language setup
section in the disc’s menu. Also, make sure your player’s audio
output is set to the original bitstream rather than 2-channel PCM.
Stop play and check the player’s output setting.
For any incoming signal, only a limited number of surround
modes are available. Although there is never a time when all of
the AVR 1600’s surround modes are available, there is usually
a wide variety of modes available for a given input.
Multichannel digital recordings are found in the 5.1-, 6.1- or
7.1-channel formats. The channels included in a 5.1-channel
recording are front left, front right, center, surround left, surround
right and LFE. The LFE channel is denoted as “.1” to represent the
it is limited to the low frequencies.
6.1-Channel recordings add a single surround back channel, and
7.1-channel recordings add surround back left and surround back
right channels to the 5.1-channel configuration. New formats are
available in 7.1-channel configurations. The AVR 1600 is able to
play the new audio formats, delivering a more exciting home theater
NOTE: To use the 6.1- and 7.1-channel surround modes,
the Surround Back channels must be enabled. See the Manual
Speaker Setup section on page 32 for more information.
The digital formats include Dolby Digital 2.0 (two channels only),
Dolby Digital 5.1, Dolby Digital EX (6.1), Dolby Digital Plus (7.1),
Dolby TrueHD (7.1), DTS-HD High-Resolution Audio (7.1), DTS-HD
Master Audio (7.1), DTS 5.1, DTS-ES (6.1 Matrix and Discrete), DTS
96/24 (5.1), 2-channel PCM modes in 32kHz, 44.1kHz, 48kHz or
96kHz, and 5.1 or 7.1 multichannel PCM.
When a digital signal is received, the AVR 1600 detects the
encoding method and the number of channels, which is displayed
briefly as three numbers, separated by slashes (e.g., “3/2/.1”).
The first number indicates the number of front channels in the signal:
“1” represents a monophonic recording, usually an older program
that has been digitally remastered or, more rarely, a modern
program for which the director has chosen a special effect.
“2” indicates the presence of the left and right channels, but no
“3” indicates that all three front channels (left, right and center)