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RSX-1560 Surround Sound Receiver

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RSX-1560 Surround Sound Receiver

DTS

5.1 

DTS 96/24

DTS

® 

(Digital Theater Systems) is an alternative digital format competing 

with Dolby Digital in both movie theaters and home theater markets. The 
basic functions of the DTS system are similar to those of Dolby Digital 
(for example, 5.1 discrete channels), however the technical details of 
the compression and decoding processes differ somewhat and a DTS 
decoder is required.

A recent extension of the DTS encoding system is DTS 96/24 and 
the 6.1-channel version DTS-ES 96/24. These recordings provide the 
performance of a 96kHz sampling rate while still using the actual 48kHz 
sampling rate of standard DTS discs.

Like Dolby Digital, DTS can only be used on a digital recording and, 
therefore, is only available for home use on LaserDiscs, DVDs, or other 
digital formats. To use the receiver’s DTS decoder, you must connect your 
DVD player to the receiver’s digital inputs. As with Dolby Digital 5.1, 
detection and proper decoding of DTS 5.1 signals is automatic.

Note:

 DVDs with a DTS soundtrack almost always have it 

configured as an option to the standard matrix Dolby Surround 

format. To use DTS, you may have to go to the setup menus at 

the beginning of the DVD and select “DTS 5.1” instead of “Dolby 

Surround” or “Dolby Digital 5.1”. In addition, many DVD players 

have the DTS digital bitstream turned off by default and cannot 

output a DTS soundtrack (even if selected on the disc’s menu) until 

you activate the player’s DTS output. If you hear no sound the 

first time you attempt to play a DTS disc, go to the DVD player’s 

configuration menus and turn on the DTS bitstream. This is a one-

time setting and need only be done once.

DTS Neo:6

This Rotel receiver features a second type of DTS surround sound 
decoding: DTS Neo:6. This decoding system is similar to Dolby Pro 
Logic II and is designed for playback of any 2-channel stereo recording, 
either matrix-encoded or not. The Neo:6 decoder can be used with any 
conventional 2-channel source such as a stereo TV or FM broadcast 
or a CD. It can also be used as an alternative method of decoding 
matrix-encoded Dolby Surround recordings or TV broadcasts. Activate 
the DTS Neo:6 decoding with the DTS Neo:6 button as detailed later in 
this section. DTS Neo:6 is not used with DTS 5.1 digital sources and the 
button need not be pressed for those recordings.

Dolby Digital Surround EX 

DTS-ES 6.1 and 7.1 Channel Surround

In 1999, the first Dolby Digital soundtrack was released to theaters with 
an additional center back surround channel, intended to increase the 
directional effects from behind the audience. This additional surround 
channel is encoded into the two existing surround channels in Dolby 
Digital 5.1, using a matrix encoding process similar to that used 
previously in Dolby Surround. This new extended surround capability is 
called Dolby Digital Surround EX.

DTS has added a similar capability for recording this extended surround 
information called DTS-ES

® 

6.1 Matrix. They have also taken it one step 

further and developed the capability to record this extended surround 
information as a discrete channel in a system called DTS-ES

® 

6.1 

Discrete.

All of these systems are extensions of the existing Dolby Digital 5.1 
and DTS 5.1 digital surround sound formats. Users with one center 
back speaker (a 6.1 configuration) or two center back speakers (a 
7.1 configuration) can take advantage of this extended surround 
information. On traditional 5.1 channel systems, Dolby Digital Surround 
EX or DTS-ES 6.1 discs sound exactly the same as 5.1 channel discs in 
each respective format.

If you have configured your system with one or two center back 
speakers, decoding of DTS-ES discs is automatic, just as it is with 
standard DTS soundtracks. Likewise, decoding of Dolby Digital Surround 
EX discs is automatic with one exception. Some Surround EX titles do 
not have the detection “flag” encoded on the disc. To activate the Dolby 
Digital Surround EX features for these discs (or for standard 5.1 channel 
Dolby Digital discs), you must manually activate Dolby Surround EX 
processing.

Dolby Pro Logic IIx 6.1 and 7.1 Channel Surround

The latest technology from Dolby uses advanced matrix decoding for 
the surround channels in a 6.1 channel or 7.1 channel system. Working 
with any 2.0 channel or 5.1 channel recording, Dolby Pro Logic IIx 
processing distributes the surround channel information among three 
or four surround channels, with a Music mode optimized for musical 
recordings and a Cinema mode optimized for film soundtracks.

Rotel XS6.1 and 7.1 Channel Surround

This receiver also features Rotel XS (eXtended Surround) processing 
provides extended surround performance on 6.1 and 7.1 channel 
systems. The key benefit of Rotel XS is that it works at all times with all 
multichannel digital signals, even those that might not otherwise activate 
Dolby Digital EX or DTS-ES surround decoding for the center back 
channel(s). Always available when center back speaker(s) are configured 
in the system setup, Rotel XS decodes the surround channels and 
distributes the extended surround channels to the center back speaker(s) 
in a way that tends to create a diffuse surround effect. Rotel XS works 
with matrix-encoded surround signals (such as non-flagged DTS-ES and 
Dolby Surround EX discs) as well as digital source material that is not 
Dolby Surround EX encoded (such as DTS 5.1, Dolby Digital 5.1, and 
even Dolby Pro Logic II decoded Dolby Digital 2.0 recordings).

Dolby Digital Plus

Built on Dolby Digital, the multichannel audio encoding standard for 
DVD and HD broadcasts, Dolby Digital Plus was designed for the new 
high-resolution delivery formats, but remains compatible with current 
A/V receivers. It is supported by the HDMI digital connection standard. 
Dolby Digital Plus can provide up to 7.1 channels with discrete channel 
output at higher bitrates than Dolby Digital. Dolby Digital Plus is an 
optional sound format for Blu-ray, and a mandatory inclusion for HD 
DVD discs.

Dolby True HD

Dolby TrueHD is based on lossless coding technology to deliver studio 
master-quality sound. Dolby TrueHD supports up to eight full-range 
channels (the maximum allowed by Blu-Ray) of 24-bit/96 kHz audio. 
Dolby TrueHD is supported by the HDMI v1.3 digital connection. 
Additional features include Dialogue Normalization, which maintains 
the same volume level when changing to other Dolby Digital and Dolby 
TrueHD programming, and Dynamic Range Control (or ‘Night Mode’), 
reducing peak volume levels to allow late-night viewing of high-energy 
surround sound without disturbing others. Dolby TrueHD is an optional 
sound format for Blu-ray Disc, and a mandatory format for HD DVD.

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29/9/08   15:16:03