Rotel Music Mixer RSP 975 User Guide

RSP-975  
DIGITAL SURROUND  
SOUND PROCESSOR  
DIGITAL SURROUND SOUND PROCESSOR RSP-975  
LISTENING  
MASTER VOLUME  
CD  
TUNER  
TAPE  
AUX  
DVD  
VIDEO  
1
VIDEO  
2
VIDEO  
3
STANDBY  
MUTE  
PEAK  
dB  
REMOTE  
DIGITAL INPUT  
COAX  
COAX  
ANALOG INPUT  
OPTICAL  
1
2
DVD  
DYNAMIC  
RANGE  
DIGITAL  
LOCK  
DOLBY  
DIGITAL  
DOLBY  
STEREO  
TREBLE  
PROLOGIC  
REMOTE  
SENSOR  
BASS  
DIGITAL  
INPUT  
SURROUND  
MODE  
INPUT LEVEL  
5.1 CH  
Owner‘s Manual  
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RSP-975  
Figure 1: Controls and Connections  
1
2
5
6
3
4
DIGITAL SURROUND SOUND PROCESSOR RSP-975  
LISTENING  
MASTER VOLUME  
dB  
CD  
TUNER  
TAPE  
AUX  
DVD  
VIDEO 1  
VIDEO 2  
VIDEO 3  
STANDBY  
MUTE  
PEAK  
REMOTE  
DIGITAL INPUT  
ANALOG INPUT  
OPTICAL  
COAX 1  
COAX 2  
DVD  
DYNAMIC  
RANGE  
DIGITAL  
LOCK  
DOLBY  
DIGITAL  
DOLBY  
STEREO  
TREBLE  
PROLOGIC  
REMOTE  
SENSOR  
BASS  
DIGITAL  
INPUT  
SURROUND  
MODE  
INPUT LEVEL  
5.1 CH  
7
8
9
10  
11 12  
13  
14 15 16  
17  
18  
24  
20  
21  
22  
23  
25  
19  
5.1 CH INPUT  
DIGITAL  
INPUT  
OPTICAL  
DIGITAL SURROUND SOUND  
PROCESSOR  
SPEAKER CONFIGURATION  
MODEL NO. RSP-975  
POWER CONSUMPTION: 30W  
CENTER FRONT REAR  
SUB  
REMOTE  
EXTERNAL  
IN  
MONITOR  
TV  
SMALL  
SMALL SMALL  
ON  
OFF  
NONE  
COAXIAL  
LARGE  
LARGE  
LARGE  
RSP-975  
NSTC  
PAL  
1
SWITCHED 800W MAX  
TUNER  
CD  
TAPE  
AUX  
DVD  
VIDEO 1  
VIDEO 2  
VIDEO 3  
FRONT REAR CENTER  
CAUTION  
2
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
L
AVIS: RISQUE DE CHOC ELECTRIQUE–NE PAS OUVRIR  
POWER  
DVD  
R
WARNING:TO REDUCE THE RISK OF FIRE  
OR ELECTRICAL SHOCK, DO NOT EXPOSE  
THIS EQUIPMENT TO RAIN OR MOISTURE.  
SUB  
IN  
OUT  
IN  
OUT  
IN  
OUT  
IN  
OUT  
OUTPUT  
26  
27  
28  
3
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DIGITAL SURROUND SOUND PROCESSOR RSP-975  
Figure 2: Remote Control  
Figure 3: Output Connections  
29  
AUD  
SAT  
CD  
TV  
TAPE  
VCR  
AUX  
CBL  
COMPOSITE  
S-VIDEO  
VIDEO INPUT  
TV MONITOR  
POWER  
30  
31  
VOL  
CH  
BAND  
MUTE  
T / V  
SURROUND +  
GUIDE  
ON SCREEN  
MENU  
PAUSE  
C. DELAY  
35  
32  
TRACK –  
TRACK +  
DOWN  
36  
37  
5.1 CH INPUT  
DIGITAL  
INPUT  
PLAY  
SEL  
OPTICAL  
DIGI  
UP  
RATION  
M
PO  
AR  
SUB  
REMOTE  
EXTERNAL  
IN  
STOP  
DYNAMIC  
MONITOR  
TV  
PRE  
CH  
38  
33  
LL  
GE  
ON  
OFF  
COAXIAL  
1
RECALL  
OPN/CLS  
NSTC  
PAL  
SUR DELAY  
AUX  
DVD  
VIDEO 1  
VIDEO 2  
VIDEO 3  
FRONT REAR CENTER  
MOVIE FILT  
PROG  
1
DISC 1  
2
DISC 2  
3
DISC 3  
2
AVIS: RI  
DVD  
4
DISC 4  
5
DISC 5  
6
DISC 6  
5.1  
TIME [REVIEW]  
39  
40  
41  
WARN  
OR ELE  
THIS EQ  
SUB  
UT  
IN  
OUT  
IN  
OUT  
IN  
OUT  
7
8
0
9
SELECT  
DIGITAL IN  
OUTPUT  
10  
>10  
ENTER  
OUT BAL  
BACK  
BAL CHK  
To front channel amplifier inputs  
34  
PHONO/LD  
CD  
TUNER  
AUX 1  
AUX  
2
To surround channel amplifier inputs  
TAPE 1  
M 1  
TAPE 2 VIDEO 1 VIDEO 2 VIDEO 3  
M 4  
M 2  
M 3  
To center channel amplifier input  
To subwoofer amplifier input  
[SHIFT]  
LIGHT  
RR-939  
42  
2
4
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RSP-975  
Figure 4: Input Connections  
DVD PLAYER  
AUDIO OUTPUT  
VIDEO OUTPUT  
COAX  
OPTI  
S-VIDEO  
LEFT  
DIGITAL  
OUT  
COMPOSITE  
RIGHT  
DTS DECODER  
FRONT REAR  
DIGITAL  
IN  
IN  
OUT  
L
CENTER  
OPTI  
COAX  
INPUT  
OUTPUT  
5.1 CH  
R
SUBWOOFER  
ROTEL RSP-975  
5.1 CH INPUT  
DIGITAL  
INPUT  
OPTICAL  
DIGITAL SURROUND SOUND  
PROCESSOR  
SPEAKER CONFIGURATION  
MODEL NO. RSP-975  
POWER CONSUMPTION: 30W  
CENTER FRONT REAR  
SUB  
REMOTE  
EXTERNAL  
IN  
MONITOR  
TV  
SMALL  
SMALL SMALL  
ON  
OFF  
NONE  
COAXIAL  
LARGE  
LARGE  
LARGE  
RSP-975  
NSTC  
PAL  
1
SWITCHED 800W MAX  
TUNER  
CD  
TAPE  
AUX  
DVD  
VIDEO 1  
VIDEO 2  
VIDEO 3  
FRONT REAR CENTER  
CAUTION  
2
L
POWER  
DVD  
R
SUB  
IN  
OUT  
IN  
OUT  
IN  
OUT  
IN  
OUT  
OUTPUT  
VIDEO RECORDER  
AUDIO OUTPUT  
VIDEO OUTPUT  
AUDIO INPUT  
VIDEO INPUT  
S-VIDEO  
S-VIDEO  
LEFT  
LEFT  
COMPOSITE  
COMPOSITE  
RIGHT  
RIGHT  
AM/FM TUNER  
AUDIO OUTPUT  
LEFT  
RIGHT  
5
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DIGITAL SURROUND SOUND PROCESSOR RSP-975  
Contents  
Figure 1: Controls and Connections  
Figure 2: Remote Control  
3
4
4
5
7
The On-Screen Display_______________________________ 12  
MAIN Screen  
12  
12  
Figure 3: Output Connections  
Figure 4: Input Connections  
About Rotel  
OUTPUT BALANCE Screen  
Rear Panel Input Connections ________________________ 13  
Source Inputs  
Digital Inputs  
5.1 CH INPUT  
13  
13  
13  
13  
26  
24  
20  
Getting Started ______________________________________ 7  
RSP-975 Key Features  
Unpacking the RSP-975  
Placement  
7
7
7
REMOTE EXTERNAL IN Jack 22  
Rear Panel Output Connections ______________________ 13  
Front Panel Controls __________________________________ 7  
Source Outputs  
14  
14  
14  
26  
STANDBY Switch  
and STANDBY LED  
7
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
Main Audio Outputs  
MONITOR TV Output  
1
30  
2
27  
21  
Remote Sensor  
7
MASTER VOLUME Control  
Rear Panel Configuration Switches ___________________ 14  
3
29  
VOLUME Display  
NTSC/PAL Video Switch  
14  
14  
4
23  
TONE Controls  
SPEAKER CONFIGURATION Switches  
19  
18  
LISTENING SOURCE Buttons  
Rear Panel AC Power Connections ____________________ 15  
5
34  
DIGITAL INPUT Button  
/ INPUT LEDs  
AC Power cord  
28  
15  
15  
12 40  
15  
5.1 CH Button  
AC Outlets  
25  
13 39  
SURROUND MODE LEDs  
RSP-975 Specifications ______________________________ 15  
17  
SURROUND MODE Button  
14 32  
INPUT LEVEL Buttons  
16  
MUTE LED  
PEAK LED  
10  
9
REMOTE LED  
8
DYNAMIC RANGE LED  
6
DIGITAL LOCK LED  
11  
RR-939 Remote Control _______________________________ 9  
Programming the RR-939  
POWER Switch  
10  
10  
10  
10  
10  
10  
10  
10  
10  
11  
11  
11  
11  
11  
11  
30  
MASTER VOLUME Controls  
29  
SELECTOR Buttons  
34  
39  
5.1 Button  
MUTE Button (remote only)  
SELECT Button (Digital Input)  
SURROUND + Button  
31  
40  
32  
SURROUND DELAY Button (remote only)  
38  
42  
CENTER DELAY Button (remote only)  
36  
DYNAMIC Button (remote only)  
37  
BACK/BALANCE CHECK (remote only)  
41  
ENTER/OUTPUT BALANCE (remote only)  
RECALL Button  
33  
ON-SCREEN Button (remote only)  
35  
6
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RSP-975  
Unpacking the RSP-975  
About Rotel  
Your RSP-975 underwent quality control tests before we sent it on  
its way to you and should perform perfectly out of the box.  
A family whose passionate interest in music led them to manufac-  
ture high fidelity components of uncompromising quality founded  
Rotel over 30 years ago. Through the years that passion has re-  
mained undiminished and the family goal of providing exceptional  
value for audiophiles and music lovers regardless of their budget,  
is shared by all Rotel employees.  
Remove the unit carefully from its packing. Look for the handheld  
remote controller and other accessories. Save the packing and  
box if possible as it will protect the RSP-975 if you move or need to  
return it to us for maintenance.  
Placement  
The engineers work as a close team, listening to, and fine tuning  
each new product until it reaches their exacting musical stan-  
dards. They are free to choose components from around the world  
in order to make that product the best they can. You are likely to  
find capacitors from the United Kingdom and Germany, semi con-  
ductors from Japan or the United States, while toroidal power  
transformers are manufactured in Rotel’s own factory.  
Place the RSP-975 on a solid, dry, level surface away from direct  
sunlight, excessive heat, high humidity, or strong vibrations.  
Make sure the RSP-975 is close to the other components in your  
audio/video system as that makes initial hookup and any subse-  
quent troubleshooting easier.  
Rotels reputation for excellence has been earned through hun-  
dreds of good reviews and awards from the most respected re-  
viewers in the industry, who listen to music every day. Their  
comments keep the company true to its goal - the pursuit of  
equipment that is musical, reliable and affordable.  
If at all possible, put the RSP-975 on its own shelf. This makes ini-  
tial cable routing, hookup, and any subsequent system changes  
easier. It also minimizes potential interference or heat buildup  
from other components.  
Make sure there is enough room behind the RSP-975 for easy  
hookup. Remember, you’re connecting many other components to  
this unit and you’ll probably need more space than you think.  
All of us at Rotel, thank you for buying this product and hope it will  
bring you many hours of enjoyment.  
Don’t stack other objects (components or other items) on top of  
the RSP-975. Don’t let water fall into the RSP-975 as this could  
damage delicate circuitry.  
Getting Started  
Thank you for purchasing our RSP-975 Digital Surround Sound  
Processor. The RSP-975 is a full-featured audio/video processor  
designed to decode both analog and digital surround sound sig-  
nals including Dolby Pro Logic and 5.1 channel Dolby Digital  
sources. It will provide accurate reproduction of both movie  
soundtracks and demanding musical selections and is a natural  
extension of our well-known passion for good sound.  
Front Panel Controls  
We suggest you look over the RSP-975s front and rear panels be-  
fore you start connecting other components to it. The following  
explanations will help you get familiar with the units connections,  
features, and controls, with number references corresponding to  
the illustrations at the front of this manual.  
To get the most from your RSP-975, we suggest you read this  
manual and keep it as a reference to answer any future questions.  
Most functions are duplicated on the front panel and on the  
handheld remote control shipped with your unit. A few may be  
available only on one or the other. When two reference numbers  
appear, one refers to the location of the button on the front panel,  
the other to the location of the button on the handheld remote  
control.  
RSP-975 Key Features  
Rotels Balanced Design” approach combines advanced circuit  
board layout, comprehensive parts evaluation, and extensive lis-  
tening tests for superior sound and long term reliability.  
Dolby® Pro Logic® decoding for analog sources  
1
30  
2
STANDBY Switch  
and STANDBY LED  
Dolby Digital® decoding for 5.1 channel digital sources  
5.1 channel input for DTS® adaptor and/or future upgradeabilty  
User friendly operation with On-Screen Display.  
The RSP-975 is similar to many TV sets in that some of its circuitry  
(the central microprocessor, infrared sensor, etc.) remains pow-  
ered at all times while the rest of the circuitry is turned on or off  
by the user.  
The STANDBY switch turns the RSP-975 from standby mode to  
fully active mode. If only the STANDBY LED is lit, the unit is in  
standby mode.  
Comprehensive digital and analog input and output connections  
for audio and video sources.  
7
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DIGITAL SURROUND SOUND PROCESSOR RSP-975  
Push the front panel STANDBY button (or the handheld remote  
The DIGITAL INPUT button allows you select one of these digital  
inputs to use in place of the ANALOG INPUT for each LISTENING  
SOURCE SELECT button. For example, if you have a DVD player ,  
you can connect the DVD player’s digital output to the DVD DIGI-  
TAL INPUT and then tell the RSP-975 to use the digital signal in  
place of the analog signal.  
POWER button) to fully activate the RSP-975. You'll see other LEDs  
light up and the STANDBY LED will go out. Push the STANDBY  
switch again to deactivate the RSP-975.  
Note: The STANDBY switch controls the rear panel AC outlet.  
When the RSP-975 is in standby mode the AC outlet is also off.  
When the RSP-975 is fully functional, the AC outlet is live.  
To select a DIGITAL or ANALOG input for a given LISTENING  
SOURCE input:  
Select the desired LISTENING SOURCE input.  
7
Remote Sensor  
This sensor receives infrared signals from the handheld remote  
control. Make sure you do not accidentally block this sensor with  
cables or accessories.  
Repeatedly press the DIGITAL INPUT button to sequentially step  
through the available digital inputs (OPTICAL/COAX1/COAX2/DVD/  
ANALOG). Stop when the desired INPUT LED lights.  
3
29  
MASTER VOLUME Control  
NOTE: The DIGITAL or ANALOG INPUT is immediately memorized  
as it is selected and will be automatically activated when you se-  
lect that LISTENING SOURCE SELECTOR button in the future.  
The MASTER VOLUME knob is an electronic rotating control. Turn  
it clockwise to increase the volume; counterclockwise to de-  
crease. MASTER VOLUME buttons are also available on the  
RSP-975's handheld remote control.  
13 39  
5.1 CH Button  
4
VOLUME Display  
This button overrides all other input selectors (both analog and  
digital) and directly connects an external adaptor (such as Rotel’s  
RDA-986 DTS Processor) to the RSP-975’s MASTER VOLUME con-  
trol. This allows the RSP-975 to remain the central controller for  
even the most advanced audio/video systems. When activated, all  
of the RSP-975’s inboard Dolby processing is bypassed.  
As you adjust the volume, a digital display located above the con-  
trol will provide a volume indication in one decibel steps with  
+12dB being maximum output level and –67dB being minimum.  
18  
TONE Controls  
BASS and TREBLE controls increase and decrease the audio  
signal’s low and high frequency content. Rotate each one clock-  
wise to increase output in the respective frequency range and  
counterclockwise to reduce it. The center detent removes each  
control from the audio path for maximum signal integrity.  
17  
SURROUND MODE LEDs  
The RSP-975 provides three different surround sound modes to  
accommodate different types of audio and video source material  
as described below. These LEDs tell you which surround sound  
mode you’ve selected. Here is a brief description of the various  
surround modes.  
5
34  
LISTENING SOURCE Buttons  
Eight large front panel LISTENING buttons allow you to select an  
audio or video source component such as CD, TUNER, VCR, DVD,  
etc. Simply push any of these buttons to select an input source.  
(The handheld remote has functionally identical buttons.) You will  
hear this source and, if you have selected a video source, see its  
picture on your TV monitor. An LED indicator on each pushbutton  
lights to confirm your selection.  
STEREO is a conventional 2-speaker stereo direct bypass mode  
with no surround sound or other processing. The FRONT LEFT  
speaker, the FRONT RIGHT speaker, and the SUBWOOFER (if  
present) are on; all other speakers are off.  
DOLBY DIGITAL provides proper playback decoding processing  
for any discrete 5.1 channel Dolby Digital encoded digital audio  
source such as an AC-3 Laser Disc or DVD disc. Dolby Digital pro-  
vides the highest level of surround sound performance with 5  
channels of discrete surround information plus subwoofer. Dolby  
Digital is only available when using one of the DIGITAL inputs. It is  
not available for ANALOG inputs.  
Note: As delivered from the factory, pushing one of these buttons  
activates the analog audio inputs for each component. However,  
to accommodate digital signals available from many source com-  
ponents (such as CD players and Dolby Digital DVD players), the  
RSP-975 also provides four digital inputs which may be used in-  
stead. See below.)  
DOLBY PRO LOGIC provides proper playback decoding and pro-  
cessing for any Dolby Surround encoded analog audio source,  
whether it be a music CD, videotape, videodisc, conventional ste-  
reo TV broadcast, or satellite broadcast. Dolby Pro Logic process-  
ing and playback through a properly calibrated system will  
preserve the directionality, ambiance, and spatial effects intended  
by the source’s producers. Dolby Pro Logic can also provide ex-  
cellent surround sound playback of musical recordings.  
12 40  
15  
DIGITAL INPUT Button  
/ INPUT LEDs  
In addition to analog audio inputs for each of eight source compo-  
nents, the RSP-975 provides DIGITAL INPUTS for up to four digital  
audio sources. These four DIGITAL INPUTS can be assigned to  
any of the eight LISTENING inputs  
8
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RSP-975  
14 32  
9
SURROUND MODE Button  
PEAK LED  
The SURROUND MODE button is used to select one of three sur-  
round modes (Dolby Pro Logic, Dolby Digital, or Stereo) as de-  
scribed in the section immediately above. To make a selection,  
press the SURROUND MODE button. Each time you press the but-  
ton, the mode will cycle to the next available setting as indicated  
by the SURROUND MODE LEDs.  
This front-panel LED lights to indicate that the input signal of the  
selected source may be overloading the input circuitry of the  
RSP-975. Momentary occasional flashes of this LED on signal  
peaks are acceptable. However, if the LED repeatedly or continu-  
ously lights, you should reduce the input level for that source.  
8
REMOTE LED  
NOTE: If an ANALOG input is selected, the only available surround  
mode options are DOLBY PRO LOGIC and STEREO. All three op-  
tions are available for DIGITAL inputs.  
This front-panel LED lights to indicate that a command is being re-  
ceived from the handheld remote control.  
6
DYNAMIC RANGE LED  
The surround mode selection for ANALOG inputs (STEREO or  
DOLBY PRO LOGIC) is memorized as soon as it is made for each  
LISTENING INPUT and will be automatically engaged the next  
time that LISTENING INPUT is selected.  
Today’s digital sources are capable of extremely high dynamic  
range (the difference between the softest and loudest sounds). In  
some cases, the available dynamic range may tax the amplifiers  
or speakers. In other cases, it may be desirable to reduce the dy-  
namic range, for example, when listening at low volume levels.  
The RSP-975 provides the capability to reduce the dynamic range  
in three progressive steps (25% / 50% / 75% reduction) with a  
pushbutton on the handheld remote control. See the Remote Con-  
trol section of this manual for details.  
The surround mode setting for DIGITAL INPUTS is not memorized  
and is only a temporary override as long as that LISTENING INPUT  
is activated.  
Every time a DIGITAL INPUT is selected, the surround mode set-  
ting will default to DOLBY DIGITAL. If a digital signal is detected  
that is not DOLBY DIGITAL, the mode will automatically switch to  
DOLBY PRO LOGIC. [???? Is this auto-sensing in the RSP-975?]  
This front-panel LED lights to indicate that the dynamic range has  
been reduced.  
16  
11  
INPUT LEVEL Buttons  
DIGITAL LOCK LED  
These two pushbuttons allow you to adjust the level of each  
source component so that the volume level remains relatively  
constant when switching between source components.  
The RSP-975 digital circuitry can lock onto digital signals with a  
number of different sampling rates. The DIGITAL LOCK LED lights  
to indicate that the digital circuitry has recognized and locked  
onto a digital signal.  
NOTE: The INPUT LEVEL adjustments only effect the ANALOG in-  
put for each source. They have no effect on the DIGITAL inputs.  
RR-939 Remote Control  
To reduce the input level of the selected source, press the INPUT  
LEVEL < button. To increase the level of the selected source press  
the INPUT LEVEL > button. As the setting is adjusted, the VOLUME  
DISPLAY changes to show the INPUT LEVEL. The range of the ad-  
justment is from 0dB (full gain) to –12dB.  
The RSP-975 includes a handheld remote control that does far  
more than operate the RSP-975. The RR-939 is a full-function pro-  
grammable remote control that can operate 8 A/V components.  
The setting is memorized as soon as it is made so that it will auto-  
matically be recalled whenever that source component is se-  
lected.  
A separate manual, included with the remote, gives detailed infor-  
mation on programming and using the RR-939 to replace all of the  
remote controls in your system. This section is intended to provide  
only that information which pertains to the use of the RR-939 to  
operate the RSP-975.  
Note: For optimum performance, it is important not to set the  
source input levels so high that the signal overloads the RSP-975’s  
input circuitry. If the PEAK LED on the front panel is repeatedly  
flashing, adjust the input level for that source downward.  
Note: Many functions duplicate the RSP-975 front panel controls  
and are listed here only for your reference. Please refer to the  
previous Front Panel Controls section of this manual if you need  
additional information.  
10  
MUTE LED  
This front-panel LED lights to indicate that the output of the  
RSP-975 has been muted from handheld remote control.  
To operate the RSP-975 with the remote, make sure that the AU-  
DIO mode is active by pressing the AUD button on the remote be-  
fore you start. If it is active, pressing command keys on the RR-939  
will cause the AUDIO button to flash red. Once the AUDIO mode is  
active, it will stay active unless you press one of the other DEVICE  
buttons to control a different component.  
9
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DIGITAL SURROUND SOUND PROCESSOR RSP-975  
Programming the RR-939  
SELECT Button (Digital Input) 40  
The RR-939 is preprogrammed from the factory to operate the  
RSP-975. Should the AUDIO command set on your RR-939 not op-  
erate the RSP-975, it’s possible that the programming had been in-  
advertently changed. To reprogram the remote to operate the  
RSP-975:  
Duplicates the DIGITAL INPUT button on the front panel. Selects  
the ANALOG input or one of the DIGITAL inputs for the currently  
selected source.  
32  
SURROUND + Button  
1. Press the AUDIO button at the top of the remote while simulta-  
neously pressing the MUTE button and hold both for at least one  
second. The AUDIO button will light in red for 20 seconds, indicat-  
ing that you have entered the program mode. The next step must  
be done within this 20 second period, or the RR-939 will revert to  
its standard operating mode.  
Duplicates the function of the front-panel SURROUND MODE but-  
ton. Steps sequentially through various surround sound operating  
modes. Your current selection will be indicated by front panel  
LEDs and will be memorized for ANALOG inputs.  
38  
SURROUND DELAY Button (remote only)  
2. Use the NUMERIC buttons to enter the 3-digit code (001) for the  
RSP-975 – press 0, then 0, then 1. The AUDIO button will flash  
each time you enter a digit.  
The surround processing in the RSP-975 delays the signal sent to  
the rear surround speakers as a means of simulating a larger  
physical space (such as a movie theater or concert hall) and to  
ensure that sounds from the front speakers reach your ear first.  
The SURROUND DELAY button steps sequentially through four  
available settings for your selected surround mode (not applicable  
in STEREO modes).  
3. Store the code number by pressing the corresponding AUDIO  
button again. The button will blink twice to confirm the storage of  
the code in memory.  
30  
POWER Switch  
NOTE: The SURROUND DELAY setting is system-wide. Changing it  
will increase or decrease the relative delay time for all inputs and  
both surround modes. The setting is automatically memorized as it  
is made.  
Duplicates the function of the Standby Switch on the front panel.  
Press to activate the RSP-975. Press again to deactivate.  
29  
MASTER VOLUME Controls  
You will get visual confirmation of your delay time setting on the  
VOLUME DISPLAY as you adjust the setting. The delay time setting  
also appears in the ON-SCREEN DISPLAY (see below).  
A pair of buttons which duplicate the function of the front panel  
volume control. Press VOLUME DOWN to reduce the volume and  
press VOLUME UP to increase the volume.  
There are no hard and fast rules for setting proper delay times.  
Many listeners will be satisfied with the default settings. Others  
will want to experiment. In the end, it is a matter of personal taste.  
The VOLUME UP/DOWN buttons are also used in making certain  
system configuration settings.  
In general, longer delay time settings will tend to create the illu-  
sion of a larger acoustic space, although if overdone, the effect  
can be exaggerated and unnatural. Longer delay settings may  
typically be more spectacular. Shorter delay times may be more  
natural.  
34  
SELECTOR Buttons  
A group of ten buttons which duplicate the function of the LIS-  
TENING SOURCE SELECTOR buttons on the RSP-975 front panel.  
Select any input source by pressing the appropriate button.  
Delay times also may need to be adjusted depending on the rela-  
tive distance from the listening position to the front and rear  
speakers. As a general rule, your attention should never be drawn  
to the surround speakers as a primary sound source, particularly  
when listening to music. If you are closer to the rear speakers, in-  
creasing the delay time may prevent this problem.  
The labels on the remote buttons match the front panel buttons,  
except that the button labelled PHONO/LD corresponds to the  
front panel DVD input button and the button labelled AUX 1 corre-  
sponds to the front panel AUX input button. The remote buttons la-  
belled AUX 2 and TAPE 2 are not used with the RSP-975.  
The four DELAY TIME choices for each surround mode are:  
5.1 Button 39  
Duplicates the 5.1 CH button on the front panel. Selects the 5.1  
Channel input, overriding any other sources.  
STEP 1 STEP 2 STEP 3 STEP 4  
STEREO:  
DOLBY PRO LOGIC:  
DOLBY DIGITAL:  
NONE  
15 ms  
NONE  
NONE  
20 ms  
5 ms  
NONE  
25 ms  
10 ms  
NONE  
30 ms  
15 ms  
31  
MUTE Button (remote only)  
Push this button once to reduce the output levels to zero – to turn  
the sound off. The front panel MUTE LED will light. Press the  
MUTE button again to restore the prior volume level.  
Again, experimentation will show you which settings are best for  
your source material, room conditions, and system setup.  
10  
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RSP-975  
will disappear after all six speakers have been highlighted and  
you may need to re-enter the menu by pressing and holding the  
BACK button.  
36  
CENTER DELAY Button (remote only)  
The CENTER DELAY button works like the SURROUND DELAY but-  
ton above, except that it increases the delay the center channel  
speaker, if present. CENTER DELAY is only available in Dolby  
Digital surround mode. The CENTER DELAY button steps sequen-  
tially through five available settings (O, 1, 2, 3, 4, 5 ms).  
While seated in the normal listening location, switch the test tone  
to the various speakers and listen to hear if any are noticeably  
louder or quieter than the front speakers. If so, adjust the quieter  
speakers volume levels up or down to match the louder speakers  
using the VOL UP/DOWN remote buttons, while the speaker you  
wish to adjust is highlighted. Continue switching among the  
speakers and adjusting until all of the speakers are approximately  
the same volume (or to suit your listening preference).  
NOTE: The CENTER DELAY setting is system-wide. Changing it will  
increase or decrease the relative delay time for all inputs in Dolby  
Digital surround mode. The setting is automatically memorized as  
it is made.  
This setting will be memorized when you leave the menu and will  
become the system-wide default setting.  
You will get visual confirmation of your delay time setting on the  
VOLUME DISPLAY as you adjust the setting. The delay time setting  
also appears in the ON-SCREEN DISPLAY (see below).  
42  
ENTER/OUTPUT BALANCE (remote only)  
The ENTER button on the remote control has a similar function to  
the BALANCE CHECK calibration described above, except that its  
adjustments are temporary and apply only to the selected source  
input. As soon as you select a different source, the settings revert  
to the system-wide defaults as set during the BALANCE CHECK  
calibration.  
37  
DYNAMIC Button (remote only)  
This button is used to reduce the dynamic range to accommodate  
program material that could tax your system or for low-volume lis-  
tening. This feature is only available in Dolby Digital surround  
mode.  
Press the button repeatedly to step through the four available set-  
tings: NONE (full dynamic range), 25% reduction, 50% reduction,  
and 75% reduction. While making the adjustment, the setting will  
appear in the VOLUME display. The setting is also shown in the  
ON-SCREEN DISPLAY (see below).  
NOTE: Although these adjustments can be made directly using the  
ENTER button, we strongly recommend that you only make these  
adjustments from the ON-SCREEN DISPLAY system. For this rea-  
son, the instructions are included in the section on the ON-  
SCREEN DISPLAY (see below).  
A front-panel LED lights to indicate that the dynamic range has  
been reduced.  
33  
RECALL Button  
You can temporarily reset the OUTPUT BALANCE settings to 0dB  
for all speakers at any time by pressing the RECALL button on the  
remote control. The memorized sytem-wide settings will be acti-  
vated when you switch to a different LISTENING SOURCE input.  
41  
BACK/BALANCE CHECK (remote only)  
The BACK button on the remote control is used during initial cali-  
bration of relative speaker volume levels. Generally, it is only used  
during initial setup of the system and not during normal operation.  
35  
ON-SCREEN Button (remote only)  
To enter the BALANCE CHECK calibration, press and hold the  
BACK button for 2 seconds. The following screen will appear on  
your TV monitor, for adjusting the relative volume levels of the  
front, center, and rear speakers, along with the subwoofer.  
Push this button to turn on the ON-SCREEN DISPLAY. If the ON-  
SCREEN DISPLAY is already visible, push this button once or twice  
to cancel the display. See next section for details.  
When the menu appears, the L/F speaker label will be flashing and  
you will hear a test tone coming from that speaker. You can select  
the other speakers by sequentially pressing the BACK button. The  
test tone will shift accordingly to the selected speaker. The menu  
11  
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DIGITAL SURROUND SOUND PROCESSOR RSP-975  
OUTPUT BALANCE Screen  
The On-Screen Display  
The RSP-975 features two ON-SCREEN DISPLAY screens to help  
operate the system. These screens are available at any time by  
pressing the ON-SCREEN MENU button on the remote control to  
activate the first screen. Push the button a second time to go to  
the second screen (OUTPUT BALANCE). Push the button a third  
time to cancel the ON-SCREEN DISPLAY.  
MAIN Screen  
The OUTPUT BALANCE screen provides a temporary adjustment  
to the relative output levels of each speaker in the system. Unlike  
the BALANCE CHECK calibration procedure, the changes made on  
this screen are temporary. They change the output balance only  
for the current source input and only until a different source is se-  
lected, when the settings will revert to the system-wide default  
established during the BALANCE CHECK calibration.  
SPEAKER OUTPUT LEVELS: The main portion of the screen con-  
sists of labels for each of the speakers in the system, along with  
an output level setting. The screen above shows ALL possible  
speakers as would appear in a full system in Dolby Pro Logic  
mode. Depending on your system configuration and surround  
mode setting, you will see a smaller complement of speakers. For  
example, in STEREO mode, you will only see FRONT speakers (and  
the SUBWOOFER, if your system is configured for a subwoofer).  
The MAIN menu provides status information and configuration op-  
tions for the source inputs and other system parameters. Some of  
the items shown above will not be available for all surround  
modes. For example, C DELAY and DYNAMIC will only appear in  
DOLBY DIGITAL mode.  
INPUT: Two lines showing the currently selected input source and  
the audio input for that source. Change the source using the LIS-  
TENING SOURCE SELECT buttons on the front panel or remote.  
Change the audio input using the DIGITAL INPUT button on the  
front panel or the SELECT button on the remote.  
To adjust the output of your speakers:  
1. Press the ENTER button on the remote. The first speaker label will  
flash. Adjust its output level up or down with the VOLUME controls  
on the front panel or remote.  
S MODE: The currently selected surround mode. Change using the  
SURROUND MODE front panel button or the SURROUND + button  
on the remote.  
C DELAY: The current center channel delay setting, only shown in  
Dolby Digital surround mode. Adjust using the C DELAY button on  
the remote.  
S DELAY: The current surround delay setting, only shown in Dolby  
Digital and Dolby Pro Logic surround modes. Adjust using the SUR  
DELAY button on the remote.  
2. Press the ENTER button on the remote again to move to the next  
speaker. Adjust its output level, and press the ENTER button again  
to continue the process until all speakers have been adjusted.  
3. Press the ENTER button on the remote again to move to the next  
speaker. Adjust its output level, and press the ENTER button again  
to continue the process until all speakers have been adjusted.  
DYNAMIC: The dynamic range setting, only shown in Dolby Digital  
surround mode. Adjust using the DYNAMIC button on the remote.  
5.1 CH INPUT: whether or not the 5.1 channel input is active  
VOLUME: Duplicates the front panel VOLUME display, along with a  
bar graph volume indication. Adjust using the VOLUME controls  
on the front panel or remote.  
4. Once you’ve started adjusting, the screen will return to the MAIN  
screen after 5 seconds of inactivity or when you press ENTER af-  
ter the final speaker.  
NOTE: You can reset the temporary OUTPUT BALANCE settings to  
0dB for all speakers at any time by pressing the RECALL button on  
the remote control.  
Press the ON-SCREEN MENU button a second time to go to the  
next screen:  
S MONO: This indication appears in the screen only in DOLBY PRO  
LOGIC surround mode to indicate that the surround speakers re-  
produce a mono signal in this mode.  
12  
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RSP-975  
INPUT: This indication appears only when an ANALOG source in-  
put is selected. It shows the current INPUT LEVEL setting for the  
active source input and can be adjusted with the front panel IN-  
PUT LEVEL buttons. This change is not temporary. It is memorized  
and will be recalled each time that source input is selected.  
To take full advantage of the built-in digital decoding capability,  
the RSP-975 accepts digital signals from up to four different  
source components in a number of formats. The digital inputs are  
as follows:  
OPTICAL: This input allows connection of a standard optical digi-  
tal output from a CD player or other source component. Requires  
an optical digital cable.  
Rear Panel Input Connections  
COAX 1 and COAX 2: Two standard coaxial digital connectors for  
use with the digital output of any component (CD player, Satellite  
TV, etc.)  
This section of the manual provides complete information on all of  
the audio and video signal input connections on the rear panel of  
the RSP-975. For convenience, each topic begins with an over-  
view of the particular connection, followed by detailed hookup in-  
structions.  
DVD: Standard coax digital connection for use with Dolby Digital  
DVD players.  
To use the digital inputs, simply connect the appropriate cable  
from the digital output of your source component to the corre-  
sponding digital input on the RSP-975.  
Note: DO NOT plug any system component into an AC source until  
system hookup is complete. Wait to apply power until you’re con-  
fident that all component-to-component connections have been  
properly made.  
It is necessary to select the appropriate digital (or analog) input  
for each component. Once the selection is made, it is memorized  
so that simply selecting a SOURCE INPUT activates the appropri-  
ate audio input. This procedure is detailed in the DIGITAL INPUT  
button section of this manual.  
All video and digital audio cables should have a 75 ohm imped-  
ance rating. Because the video and digital cable standards are as  
close as they are, you can safely use a video cable for digital au-  
dio data transmission and, conversely, a digital audio cable for  
video data transmission. We strongly advise that you NOT substi-  
tute a conventional analog audio interconnect cable for either  
digital or video.  
20  
5.1 CH INPUT  
This 25-pin input connects six discrete channels of analog infor-  
mation from an outboard processor (DTS, for example).  
External adaptors may provide both RCA and DB25 outputs. We  
suggest that you use a DB25-to-DB25 cable to reduce the number  
of cables and to insure proper channel-to-channel continuity.  
26  
Source Inputs  
These eight sets of RCA-type inputs (TUNER, CD, TAPE, AUX, DVD,  
VIDEO 1, VIDEO 2, and VIDEO 3) accept line level audio and com-  
posite video signals from source components. The first four inputs  
are audio-only, the other four source inputs accept both left and  
right channel audio plus a video signal.  
If your external adaptor does not have a DB25 output, you will  
need to purchase a multi-RCA to DB25 adaptor cable from your  
Rotel retailer. Make sure to observe proper channel continuity.  
All RCA-type connections on the RSP-975 follow these standard  
color codes:  
22  
REMOTE EXTERNAL IN Jack  
This 3.5 mm jack accepts a remote infrared sensor which dupli-  
cates the function of the front panel IR sensor in installations  
where the front panel sensor could be blocked by a cabinet. See  
your authorized Rotel dealer for a selection of remote sensors that  
will work with your RSP-975.  
Left channel audio  
Right channel audio  
Composite video  
=
=
=
RCA jack with white inset  
RCA jack with red inset  
RCA jack with yellow inset  
Connect the OUTPUTS of your source components to the appro-  
priate INPUTS on the RSP-975. For example, if your system in-  
cludes a CD player, connect its left and right channel analog  
outputs to the RSP-975’s CD inputs. If your system includes a video  
source, connect its analog audio outputs to one of the RSP-975’s  
VIDEO audio inputs and its video composite RCA output to the cor-  
responding composite RCA video input.  
Rear Panel Output Connections  
This section of the manual provides complete information on the  
audio and video signal output connections on the rear panel of the  
RSP-975 which are used for routing the output signals to a televi-  
sion monitor, audio amplifiers, and recording devices. For conve-  
nience, each topic begins with an overview of the particular  
connection, followed by detailed hookup instructions.  
24  
Digital Inputs  
The RSP-975 features a D/A conversion capability which allows it  
to accept digital input signals from source components. These in-  
clude digital signals from CD players, satellite TV receivers, and  
5.1 channel Dolby Digital signals from DVD players. The D/A auto-  
matically senses and adjusts to the correct sampling rates.  
13  
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DIGITAL SURROUND SOUND PROCESSOR RSP-975  
26  
Source Outputs  
Rear Panel Configuration Switches  
Four of the input sources have corresponding sets of RCA output  
connections for routing the signal of the RSP-975 to audio or video  
tape recorders for recording.  
The RSP-975 has five switches that must be set according to your  
particular system configuration. Details follow:  
TAPE provides a stereo pair of audio outputs. Connect standard  
RCA cables from the LEFT and RIGHT outputs to the LEFT and  
RIGHT record inputs on your audio tape recorder.  
23  
NTSC/PAL Video Switch  
There are two different video standards used in different parts of  
the world. In the United States, broadcast TV and video compo-  
nents adhere to the NTSC standard. In Europe, the PAL standard  
is more common. These differ in their technical details (scanning  
frequency, etc.) and are not interchangeable.  
VIDEO 1, VIDEO 2, AND VIDEO 3 include left and right channel au-  
dio plus composite coax video output from the RSP-975 to VCRs or  
other components (VCR, etc.) for recording. Standard color coding  
applies.  
Connect the RSP-975's VIDEO 1 left and right audio outputs to the  
audio inputs of the first source component. Then, connect the  
VIDEO 1 composite video output to the video input of the same  
source component. Repeat these steps for Video 2 and Video 3  
connections, if necessary/  
You must set the rear panel switch to match the video standard in  
your country. If set incorrectly, the video signal sent to your TV  
monitor will be unrecognizable.  
19  
SPEAKER CONFIGURATION Switches  
Once properly connected, whatever input signal is selected by the  
LISTENING INPUT SOURCE buttons is available for recording at  
any or all of the output connections.  
There are four speaker configuration switches on the RSP-975s  
rear panel — CENTER (small/none/large), FRONT (small/large),  
REAR (small/large), and SUB (on/off). These switches let you cus-  
tomize the RSP-975s main outputs to precisely match system con-  
figuration and speaker capabilities.  
NOTE: Only analog audio signals are available at the record out-  
puts. Therefore, even if you choose to use digital signals from  
your source components, you should also connect their analog  
signals to the RSP-975, for recording purposes.  
SPEAKER CONFIGURATION  
CENTER FRONT REAR  
SUB  
SMALL  
SMALL SMALL  
ON  
OFF  
NONE  
LARGE  
LARGE  
LARGE  
27  
Main Audio Outputs  
These six outputs (LEFT FRONT, CENTER FRONT, RIGHT FRONT,  
LEFT SURROUND, RIGHT SURROUND, and SUBWOOFER) connect  
the RSP-975's main audio output to a multichannel power ampli-  
fier or multiple power amplifiers for the primary listening area via  
six individual RCA-style jacks.  
These switches are crucial to proper system configuration and  
must be adjusted so that you enjoy all the performance your sys-  
tem can deliver.  
Standard color coding applies with black insets to distinguish  
center channel and subwoofer outputs from left (white) and right  
(red) Front and Rear outputs.  
Home theater speaker systems vary considerably in their size and  
performance, particularly in their bass output. For this reason,  
today’s surround sound processors feature elaborate logic which  
can send thunderous bass information from movie soundtracks to  
the speaker(s) best able to handle it – subwoofers and/or large  
speakers. For optimum surround sound performance, it is neces-  
sary to tell the RSP-975 what speakers your system includes and  
what type they are.  
To hook up the RCA main audio outputs, connect a standard audio  
cable from each output to the input of the amplifier channel that  
will power the corresponding speaker. In a full home theater sys-  
tem, you will need to make six different connections correspond-  
ing to the six speakers (LEFT FRONT, CENTER FRONT, RIGHT  
FRONT, LEFT SURROUND, RIGHT SURROUND, and SUBWOOFER).  
The following configuration instructions refer to LARGE and  
SMALL speakers. The size refers more to the bass performance of  
the speaker than its physical size. A full-range speaker that has  
extended bass response is considered LARGE. A compact  
minispeaker with limited bass response or power handling is con-  
sidered SMALL.  
It is important to make sure that you have the correct output con-  
nected to the proper amplifier channel. Take your time.  
21  
MONITOR TV Output  
The video output of the RSP-975 sends the video signal to your TV  
monitor from an RCA-type composite video connection. Simply  
connect the MONITOR TV output to a video input on your televi-  
sion monitor, using a standard RCA composite video cable. What-  
ever signal is selected on the RSP-975 will appear on screen.  
While understanding the terms LARGE and SMALL is useful, it is  
probably more important to understand what these different  
speaker types mean in terms of system performance. This will  
help determine how you should configure your system. In a nut-  
shell, the system will redirect bass information away from  
SMALL speakers and send it to the LARGE speakers and/or the  
SUBWOOFER in your system.  
14  
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RSP-975  
Things become a little more complex in systems with a subwoofer.  
For example, the system will generally not redirect bass informa-  
tion away from a LARGE speaker to the subwoofer. Thus, the de-  
cision you need to make when confronted with a choice of LARGE  
or SMALL is whether or not you want the particular speaker to  
play the deep bass information or whether your would prefer that  
the deep bass information be sent to the subwoofer. If you have  
invested in a robust subwoofer for your system, you might very  
well decide to send all of the bass to it, regardless of how capable  
the other speakers in the system may be. In this case, you would  
tell the RSP-975 that all of your speakers are SMALL, without re-  
gard to how big they may actually be.  
25  
AC Outlets  
These two outlets lets you plug AC cords from source components  
or other accessories into the back of the RSP-975 so that they will  
be turned on and off automatically. The outlets are powered  
whenever the RSP-975 is fully active and are off when the  
RSP-975 is in STANDBY mode.  
Note: We DO NOT RECOMMEND that you use this outlet for a  
power amplifier. Do not exceed the maximum 800 watt capability  
of these switched outlets.  
An alternative configuration for setting up front SMALL speakers  
with a subwoofer would be to follow the speaker manufacturers  
instructions, wiring the SMALL speakers to the subwoofer’s  
crossover and then connecting the subwoofer directly to the front  
speaker connection terminals. In this arrangement, the speakers  
would be classified as LARGE and the subwoofer setting would be  
OFF for all surround modes. No information will be lost during  
playback because the system knows to redirect the bass informa-  
tion to the front LARGE speakers. This configuration may be opti-  
mal for many users as it can improve the way the bass integrates  
into the listening room and ensure correct satellite speaker op-  
eration by using the speaker manufacturer’s own crossovers.  
RSP-975 Specifications  
Audio  
Frequency Response:  
5 Hz - 20 kHz, + 0.5 dB  
Signal to Noise Ratio (IHF “A”):  
100 dB (front)  
70 dB (surround)  
Input Impedance:  
47 k Ohms  
Output Impedance:  
500 ohms  
The following speaker options are available:  
Total Harmonic Distortion:  
Intermodulation Distortion:  
0.03 % (@1 kHz)  
0.03 % (400 Hz/7 kHz, 4:1)  
FRONT SPEAKERS (small/large): This menu setting determines  
what kind of main front left and right speakers you are using. Use  
the LARGE setting if your main left and right speakers are full  
range designs with good bass response capability. If you are us-  
ing minispeakers or if you want the bass from these speakers to  
go to a subwoofer instead, use the SMALL setting.  
Output  
Maximum:  
Dolby, 300 mV in:  
> 6 volts  
0.9 volt  
Video  
CENTER SPEAKER (small/large/none): Use the LARGE position if  
your systems center channel speaker is capable of full-range, ex-  
tended bass response. Use the SMALL position if your center  
channel speaker has more limited low frequency capability, or if  
you prefer that the bass be sent to the subwoofer. Select the  
NONE setting if your system does not have a center channel  
speaker.  
Frequency Response:  
Signal to Noise Ratio:  
Input Impedance:  
3 Hz-10 MHz, - 3 dB  
– 60 dB  
75 ohms  
Output Impedance:  
75 ohms  
Output level (peak to peak):  
1 volt  
REAR SPEAKERS (small/large): If your rear surround speakers are  
capable of sustained low frequency output , select the LARGE set-  
ting. If your rear speakers have limited bass capability or if you  
prefer that the bass go to a subwoofer, use the SMALL setting.  
General  
Power Consumption:  
30 watts  
Power Requirements (AC):  
115 volts 50/60 Hz or  
230 volts 50/60 Hz  
SUBWOOFER (yes/no): Use the YES setting if your system has a  
subwoofer. If your system does not have a subwoofer, select the  
NO setting.  
Weight:  
8 Kg/17.6 lb.  
Dimensions (W x H x D):  
440 x 110 x 316 mm  
17.38" x 5" x 12.43"  
All specifications are accurate at the time of printing.  
Rotel reserves the right to make improvements without notice.  
Rear Panel AC Power Connections  
Rotel and the Rotel HiFi logo are registered trademarks of The Rotel Co, Ltd., Tokyo, Japan.  
DTS is a registered trademark of Digital Theater Systems.  
Manufactured under license from Dolby Laboratories Licensing Corporation. “Dolby”, “Pro  
Logic”, and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.  
Confidential unpublished works © 1992 – 1997 Dolby Laboratories, Inc. All rights reserved.  
28  
AC Power cord  
Your RSP-975 is configured at the factory for the proper AC line  
voltage in the country where you purchased it (either 115 volts AC  
or 230 volts AC with a line frequency of either 50 Hz or 60 Hz). The  
AC line configuration is noted on a decal on the back of your unit.  
15  
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RSP-975  
DIGITAL SURROUND SOUND PROCESSOR  
The Rotel Co. Ltd.  
10-10 Shinsen-Cho  
Shibuya-Ku  
Tokyo 150-0045  
Japan  
Phone: +81 3-5458-5325  
Fax: +81 3-5458-5310  
Rotel of America  
54 Concord Street  
North Reading, MA 01864-2699  
USA  
Phone: +1 978-664-3820  
Fax: +1 978-664-4109  
Rotel Europe  
Meadow Road  
Worthing, West Sussex BN11 2RX  
England  
Phone: +44 (0)1903 524 813  
Fax: +44 (0)1903 524 831  
Rotel Deutschland  
Kleine Heide 12  
D-33790 Halle/Westf.  
Germany  
Phone: +49 05201-87170  
Fax: +49 05201-73370  
082 OMRSP-975 020399 ENG  
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