Manually selecting surround modes – ROTEL RSP-1570 User Manual
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RSP-1570 Surround Sound Processor
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RSP-1570 Surround Sound Processor
center back speaker(s) and will ensure proper extended surround 
decoding of all multichannel digital signals, even those that might not 
otherwise trigger the proper extended surround mode.
In many cases, the processor will also recognize a digital signal with Dolby 
Surround encoding (such as the default soundtrack on many DVDs) and 
activate Dolby
®
Pro Logic II
®
decoding. Additionally, you can configure a
default surround mode for each input using the INPUT SETUP menu (see 
the Setup section of this manual). 
Combined with the auto-detection of Dolby Digital 5.1 and DTS, this 
default surround setting makes operation of the processor’s surround 
modes totally automatic. For example, if you set Dolby Pro Logic II 
movie mode as the default for all of your video inputs, the processor will 
automatically decode Dolby Digital 5.1 and DTS soundtracks when they 
are played and use Pro Logic II matrix decoding for all other recordings. 
For stereo inputs such as CD and Tuner, you could select STEREO mode 
as the default for 2-channel playback or Dolby Pro Logic II music mode if 
you prefer to hear music sources in surround sound.
Note: A digital signal coming into the processor will be
recognized and properly decoded. However, on a DVD with
multiple soundtracks, you must tell the DVD player which one
to send to the processor. For example, you may need to use
the DVD’s menu system to select the Dolby Digital 5.1 or DTS
5.1 soundtrack rather than the default Dolby Digital 2.0 Dolby
Surround soundtrack.
Manually Selecting 
Surround Modes
As described in the previous section, the combination of auto-detection 
of Dolby Digital and DTS recordings and setting default surround 
modes for each input during the setup of the processor makes operation 
of surround modes totally automatic. For many users, this automatic 
surround mode selection will meet all of their listening needs.
For users who prefer a more active role in setting surround modes, 
buttons on the remote and the front panel provide manual selection of 
surround mode that are not automatically detected or, in some cases, to 
override an automatic setting.
Manual settings available from the front panel and/or the remote might 
be used when you want to play:
• Standard 2-channel stereo (left/right speakers only) with no surround
processing.
• Downmixed 2-channel playback of Dolby Digital 5.1 or DTS
recordings.
• Dolby 3-channel stereo (left/right/center) of 2-channel recordings.
• 5-channel or 7-channel stereo from 2-channel recordings.
• One of four DSP modes for DSP concert hall simulation from 2-
channel music recordings.
• Dolby Pro Logic II cinema or music mode matrix decoding of 2-
channel recordings.
• DTS Neo:6 cinema or music mode matrix decoding of 2-channel
recordings.
• Dolby Digital Surround EX decoding of Dolby Digital 5.1 channel
recordings or Dolby Digital Surround EX discs that do not trigger 
automatic decoding.
Note: DTS, DTS-ES Matrix 6.1, DTS-ES Discrete 6.1, DTS 96/24,
DTS-ES 96/24 and Dolby Digital signals are auto-detected and
cannot be overridden. However, you can choose to use Dolby
Digital Surround EX decoding for any Dolby Digital 5.1 source
material. You can also downmix Dolby Digital 5.1 or DTS 5.1
recordings for 2-channel playback.
• PCM 2-channel (non 96kHz) digital signals can be overridden to
Dolby Pro Logic II, Dolby 3-Stereo, DTS Neo:6, DSP 1–4, 5CH 
Stereo, 7CH Stereo, and Stereo.
• Dolby Digital 2-channel Stereo can be overridden to Dolby Pro Logic
II, Dolby 3-Stereo, and Stereo.
The following topics describe in detail the manual surround mode options 
available for each type of recording:
Dolby Digital 5.1 discs
Dolby Digital Surround EX discs
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Dolby Digital decoding is auto-detected and cannot be overridden. You 
may, however, select a 2-channel downmix of 5.1 channel recordings. 
In a 6.1 or 7.1 channel system, you can also choose Dolby Surround 
EX, Dolby Pro Logic IIx Music, Dolby Pro Logic IIx Cinema (7.1 channel 
only), or Rotel XS processing for center back channels.
Note: In addition to the options that follow, you can press the
2CH button on the front panel or the remote to toggle between 2-
channel downmix and multichannel playback.
• On a 5.1 system. Press the SUR+ button on the remote, then press
the +/– buttons to change between DD 5.1 channel or DD 2.0 
channel downmix playback.
• On a 6.1 system. Press the SUR+ button on the remote, then use the
+/– buttons to step through five options: DD 2.0 channel downmix, 
DD 5.1 channel, DD Surround EX center back processing, DD with 
Pro Logic IIx Music center back processing or DD with Rotel XS center 
back processing. You should typically select Surround EX or discs that 
are labeled Dolby Digital Surround EX. For standard 5.1 channel 
discs, Dolby Pro Logic IIx Music or Rotel XS processing will provide 
a more diffuse surround effect than the more highly localized Dolby 
EX decoding and will probably be the better 6.1 channel options 
for non-Surround EX discs. Selecting DD 5.1 forces the center back 
channel processing off for conventional 5.1 channel playback. You 
can also repeatedly press the DOLBY PLIIx Mode button on the front 
panel until the desired center back channel option is selected.
• On a 7.1 system. Press the SUR+ button on the remote, then use the
+/– buttons to step through six options: DD 2.0 channel downmix, 
DD 5.1 channel, DD Surround EX center back processing, DD with 
Pro Logic IIx Music center back processing, DD with Pro Logic IIx 
Cinema back channel processing, or DD with Rotel XS center back 
processing. You should typically select Surround EX or discs that 
are labeled Dolby Digital Surround EX. For standard 5.1 channel 
discs, Dolby Pro Logic IIx Music or Rotel XS processing will provide a 
more diffused surround effect than the more highly localized Dolby 
EX decoding and may be the better 7.1 channel options for non-
Surround EX discs. Selecting DD 5.1 forces the center back channel 
processing off for conventional 5.1 channel playback. You can also 
repeatedly press the DOLBY PLIIx Mode button on the front panel until 
the desired center back channel option is selected.
Note: When playing any Dolby Digital source, you can select
one of three dynamic range control settings. See the Dynamic
Range topic in the Other Settings section of this manual.
Dolby Digital 2.0 discs
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Dolby Digital decoding is auto-detected and cannot be overridden. You 
may, however, select 2-channel playback, 5.1 channel playback with Pro 
Logic II matrix surround, 6.1/7.1 channel playback with Pro Logic IIx 
matrix surround, or Dolby 3-Stereo playback.
• On a 5.1 system. Press the SUR+ button on the remote, then use
the +/– buttons to step through four options: DD 2.0 channel, DD 
with Pro Logic II Cinema matrix surround, DD with Pro Logic II Music 
matrix surround, or Dolby Digital 3 channel stereo. You can also 
repeatedly press the 2CH button on the front panel or the remote to 
select the same options.
• On a 6.1/7.1 system. Press the SUR+ button on the remote, then
use the +/– buttons to step through four options: DD 2.0 channel, 
DD with Pro Logic IIx Cinema matrix surround, DD with Pro Logic IIx 
Music matrix surround, or Dolby Digital 3 channel stereo. You can 
also repeatedly press the 2CH button on the front panel or the remote 
to select the same options.
• To select Cinema or Music options in Pro Logic II or Pro Logic
IIx modes.
Press the SUR+ button twice while in Pro Logic II or Pro
Logic IIx modes. Then, use the +/– buttons to select the Music or 
Cinema options.
Note: When playing any Dolby Digital source, you can select
one of three dynamic range control settings. See the Dynamic
Range topic in the Other Settings section of this manual.
DTS 5.1 discs
DTS 96/24 discs
DTS-ES 6.1 discs
7LNO
DTS decoding is auto-detected and cannot be overridden. You may, 
however, select a 2-channel downmix of 5.1 channel recordings or add 
Rotel XS center back processing for 5.1 channel discs.
Note: In addition to the options that follow, you can press the
2CH button on the remote to toggle between 2-channel downmix
and multichannel playback.
• On a 5.1 system. Press the SUR+ button on the remote, then press
the +/– buttons to change between DTS 5.1 channel or DTS 2.0 
channel downmix playback.
• On a 6.1/7.1 system with a DTS 5.1 disc. Press the SUR+ button
on the remote, then use the +/– buttons to step through the optional 
modes: DTS 2.0 channel downmix, DTS 5.1 channel, DTS with Rotel 
XS center back processing, DTS with Pro Logic IIx Music center back 
processing, or DTS with Pro Logic IIx Cinema center back processing 
(available only for 7.1 channel systems). Selecting DTS 5.1 forces 
the center back channel processing off for conventional 5.1 channel 
playback. You can also repeatedly press the DTS Neo:6 button on the 
front panel until the desired option is selected.
• On a 6.1/7.1 system with a DTS-ES disc. Press the SUR+ button
on the remote, then use the +/– buttons to step through three optional 
modes: DTS 2.0 channel downmix, DTS 5.1, or DTS-ES 6.1ch/7.1ch 
playback. On the front panel, press the DTS Neo:6 button while 
playing a DTS source to step through the same options.
• On a 6.1/7.1 system with a DTS 96/24 disc. Press the SUR+
button on the remote, then use the +/– buttons to step through the 
optional modes: DTS 2.0 channel downmix, DTS 96, or DTS 96 with 
Rotel XS center back processing. You can also repeatedly press the 
front panel DTS Neo:6 button until the desired option is selected.
Digital Stereo discs
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This group of recordings includes any non-Dolby Digital 2-channel 
signal from the processor’s digital inputs. You can play these recordings 
in 2-CH Stereo, Dolby 3-Stereo, 5-CH Stereo, 7-CH Stereo modes. You 
can also use Dolby Pro Logic II matrix surround (5.1 ch systems), Dolby 
Pro Logic IIx Music (6.1/7.1 ch systems), Dolby Pro Logic IIx Cinema 
(6.1/7.1 ch systems), DTS Neo:6 surround, or one of the DSP 1-4 
modes.
All of the bass management settings (speaker size, subwoofer, and 
crossover) are in effect with digital stereo inputs.
Note: In addition to the options that follow, you can select 2-
channel, Pro Logic II Cinema (for 5.1 ch systems), Pro Logic II
Music (for 5.1 ch systems), Pro Logic IIx Music (for 6.1/7.1 ch
systems), Pro Logic IIx Cinema (for 7.1 ch systems), 5-channel
stereo, or 7-channel stereo by pressing one of the surround mode
buttons on the remote (2CH, PLC, PLM, 5CH, 7CH).
• To select any mode for 2-channel digital recordings. Press the
SUR+ button on the remote, then use the +/– buttons to step through 
the optional modes until the desired mode is displayed.
• To select STEREO mode for 2-channel digital recordings. Press
the 2CH button on the front panel or remote.
• To select Dolby multichannel modes for 2-channel digital
recordings.
You can also step through the Dolby options (Pro Logic
II, Pro Logic IIx, or 3-Stereo) by repeatedly pressing the DOLBY PLIIx 
Mode button on the front panel. You can select Pro Logic or Pro Logic 
IIx Cinema or Music modes by pressing the PLC or PLM buttons on 
the remote.
To change the Cinema or Music option in Pro Logic II mode, press the
SUR+ button on the remote twice while in Pro Logic II or Pro Logic IIx 
modes. Then, press the +/– buttons to select the option.
• To select DTS Neo:6 mode for 2-channel digital recordings.
You can also step through the DTS options (Neo:6 Cinema or Neo:6
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