Rotel Stereo Receiver RX 975 User Guide

Owner’s Manual  
RX-975  
AM/FM Stereo Receiver  
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3
English  
Figure 1: Controls and Connections  
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RX-975 AM/FM Stereo Receiver  
4
Figure 2: RR-949 Remote Control  
31  
37  
38  
39  
32  
33  
34  
Figure 3: Antenna Connections  
35  
36  
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English  
Figure 4: Input Connections  
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RX-975 AM/FM Stereo Receiver  
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Figure 5: Output Connections  
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Contents  
Figure 1: Controls and Connections  
Figure 2: RR-949 Remote Control  
Figure 3: Antenna Connections  
Figure 4: Input Connections  
3
4
4
5
6
PRESET AUTO SCAN Button  
[SHIFT] MUTE  
11  
TV/BAND Button  
11  
TUNE/PRESET Button  
[SHIFT] TV/BAND  
11  
11  
12  
12  
Figure 5: Output Connections  
CH TUNING Buttons  
INPUT SOURCE Buttons  
NUMERIC Buttons  
About Rotel ...........................................8  
Getting Started ......................................8  
Rear Panel Connections ........................12  
Unpacking  
Placement  
8
8
Phono Inputs  
CD Inputs  
and Phono Ground  
12  
12  
12  
12  
12  
12  
12  
13  
Main Operating Controls .........................8  
Tape Inputs and Outputs  
VIDEO 1 Inputs/Outputs  
VIDEO 2 – 5 Inputs  
TV Monitor Output  
Power Switch  
and Standby Switch  
8
9
9
9
9
9
9
9
9
9
Remote Sensor  
Front Panel Display  
Master Volume  
Tone Controls  
Speaker Outputs  
Preamp Inputs/Outputs  
Balance Control  
Headphones Jack  
Speaker Button  
MEMORY Button  
Antenna Connections ............................13  
AM Loop Antenna  
FM Wire Antenna  
13  
13  
and Speaker LEDs  
Input Source Buttons  
AC Power Connections ..........................14  
Tuning Controls ....................................10  
AC Input  
14  
AC Convenience Outlet  
[USA version only]  
BAND Button  
10  
10  
10  
10  
10  
14  
14  
TUNING Button  
Remote External Sensor  
NUMERIC Buttons: Station Presets  
FREQUENCY DIRECT Button  
MONO Button  
Specifications .......................................15  
Audio  
15  
15  
15  
15  
15  
Video  
RR-949 Remote Control .......................11  
FM Tuner  
AM Tuner  
General  
AUDIO Button  
11  
11  
11  
11  
11  
11  
Programming the RR-949  
POWER Button  
VOLUME Buttons  
SHIFT Button  
MUTE Button  
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RX-975 AM/FM Stereo Receiver  
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Make sure there is enough room behind the  
RX-975 for easy hookup. Remember, you are  
connecting many other components to this  
unit and you’ll probably need more space  
than you think.  
About Rotel  
Getting Started  
Thank you for purchasing the Rotel RX-975  
AM/FM Stereo Receiver. The RX-975 is three  
products in one:  
A family whose passionate interest in mu-  
sic led them to manufacture high fidelity com-  
ponents of uncompromising quality founded  
Rotel over 30 years ago. Through the years  
that passion has remained undiminished and  
the family goal of providing exceptional value  
for audiophiles and music lovers regardless  
of their budget, is shared by all Rotel em-  
ployees.  
Don’t stack other objects (components or  
other items) on top of the RX-975. Don’t let  
water fall into the RX-975 as this could dam-  
age delicate circuitry.  
1. A full-featured audio/video control cen-  
ter for analog audio and video source  
components  
2. A high-quality AM/FM tuner with 30  
station presets, direct access tuning, and  
auto-tuning.  
Main Operating Controls  
The engineers work as a close team, listen-  
ing 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 conductors from Japan or  
the United States, while toroidal power trans-  
formers are manufactured in Rotel’s own  
factory.  
3. A high power 2-channel amplifier.  
We suggest you look over the RX-975’s front  
and rear panels before you start connect-  
ing other components to it. The following ex-  
planations will help you get familiar with the  
units connections, features, and controls, with  
number references corresponding to the il-  
lustrations at the front of this manual.  
Rotel’s Balanced Design Concept combines  
advanced circuit board layout, comprehen-  
sive parts evaluation, and extensive listen-  
ing tests for superior sound and long term  
reliability. We are confident that you will en-  
joy the high performance of your Rotel  
RX-975 for years to come.  
Most functions are duplicated on the front  
panel and on the remote control shipped with  
your unit. A few may be available only on  
one or the other. When two reference num-  
bers 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.  
In addition, the RX-975 includes a univer-  
sal remote control that is factory programmed  
operate the RX-975 and can be programmed  
to operate up to seven other components of  
your choice, providing the convenience of  
whole-system control from a single remote.  
Rotel’s reputation for excellence has been  
earned through hundreds of good reviews  
and awards from the most respected review-  
ers in the industry, who listen to music ev-  
ery day. Their comments keep the company  
true to its goal - the pursuit of equipment that  
is musical, reliable and affordable.  
Unpacking  
NOTE: Front panel controls and displays used  
for tuning the AM/FM receiver are de-  
scribed in the next section of this manual.  
Remove the unit carefully from its packing.  
Look for the handheld remote control and  
other accessories. Save the packing and box  
as it will protect the RX-975 if you move or  
need to return it for maintenance.  
All of us at Rotel, thank you for buying this  
product and hope it will bring you many hours  
of enjoyment.  
POWER Switch  
and  
Placement  
STANDBY Switch  
Place the RX-975 on a solid, dry, level sur-  
face away from direct sunlight, excessive  
heat, high humidity, or strong vibrations.  
The RX-975 has two pushbuttons for pow-  
ering on and off. The POWER switch com-  
pletely shuts down all of the circuitry, simi-  
lar in effect to removing the power cord from  
the AC outlet. The STANDBY switch deacti-  
vates the unit, but preserves power to some  
circuits such as those that store memorized  
circuits. When in STANDBY mode, a front  
panel STANDBY LED indicator lights. The  
STANDBY switch is duplicated on the  
RX-975's remote.  
The RX-975 can generate considerable heat  
during normal operation. Do not block its  
ventilation openings. Allow a minimum of  
10 cm (4 inches) of unobstructed open space  
around the unit. If installed in a cabinet, make  
sure that there is adequate ventilation.  
Make sure the RX-975 is close to the other  
components in your audio/video system and,  
if possible, place it on its own shelf. This will  
make initial cable routing, hookup, and any  
subsequent system changes easier. It also  
minimizes potential interference or heat  
buildup from other components.  
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English  
In normal operation, use the STANDBY switch  
to deactivate the unit when you are finished  
listening and leave the POWER switch ON  
at all times. This will preserve memory func-  
tions.  
BALANCE Control  
Input Source Buttons  
Turn the BALANCE control clockwise to in-  
crease the output level of the right channel  
speakers. Turn counterclockwise to increase  
the output level of the left channel speakers.  
The center detent position removes the control  
from the circuit and provides equal output  
from both left and right channels.  
Ten large front panel buttons directly select  
an audio or video input source (such as a  
CD player, the built-in tuner, a tape recorder,  
video sources, etc.) for listening. Push any  
of these buttons (or the duplicates on the  
handheld remote) to select the desired source.  
You will hear this source and, if you have  
selected a video source, see its picture on  
your TV monitor. The front panel display will  
show the current source selection.  
NOTE: The STANDBY switch also controls  
the rear panelAC outlets. When the RX-975  
is in STANDBY mode, the AC outlet is also  
off. When the RX-975 is fully functional, the  
AC outlet is live.  
HEADPHONES Jack  
This jack accepts a standard 1/4 inch ste-  
reo headphone plug. Use an adaptor if your  
headphones have the smaller mini-plug.  
Inserting a headphone plug will automati-  
cally disable all speaker outputs.  
TAPE MONITOR Buttons: Two of the IN-  
PUT SOURCE buttons have a special func-  
tion. The TAPE 1 and TAPE 2 MONITOR  
buttons activate the audio inputs of a tape  
monitor loop consisting of a pair of outputs  
and a matching set of inputs. Normally, this  
tape monitor loop is used to play a tape deck  
connected to these inputs or for real time  
monitoring of a recording in progress on an  
audio tape deck. Alternatively, the tape  
monitor loop could be used to pass a sig-  
nal to a graphic equalizer and listen to the  
processed signal by pressing the correspond-  
ing TAPE MONITOR button. An indicator ap-  
pears in the front panel display when TAPE  
2 MONITOR is activated.  
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.  
SPEAKER Button  
SPEAKER LEDs  
and  
Front Panel Display  
The RX-975 provides output connections for  
two pairs of speakers: A and B. The SPEAKER  
BUTTON controls which pairs of speakers  
outputs, if any, are active. A pair of SPEAKER  
LED indicators located to the left of the DIS-  
PLAY shows the current speaker selection.  
Press the SPEAKER button repeatedly to step  
sequentially through the four available  
speaker options:  
The large fluorescent display in the upper  
portion of the RX-975 provides status infor-  
mation used in operating the AM/FM re-  
ceiver (such as station frequency display,  
band, preset memory, etc.).  
MASTER VOLUME  
The MASTER VOLUME control adjusts the  
level of all output channels simultaneously.  
Rotate the control clockwise to increase the  
volume. Rotate counterclockwise to decrease  
the volume. MASTER VOLUME buttons are  
also available on the RX-975's handheld re-  
mote control.  
Speakers A active (LED A only lit)  
Speakers B active (LED B only lit)  
Speakers A and B active (both LEDs lit)  
All speakers off (no LEDs lit)  
When you adjust the volume, a bar indica-  
tor in the display shows the volume setting.  
NOTE: Inserting a headphone plug into the  
headphone jack disables all speaker out-  
puts, regardless of the SPEAKER button set-  
ting.  
TONE Controls  
BASS and TREBLE controls increase and  
decrease the audio signal’s low and high  
frequency content respectively. Rotate clock-  
wise to increase output in the respective fre-  
quency range and counterclockwise to re-  
duce it. The center detent removes each  
control from the audio path for maximum  
signal integrity.  
MEMORY Button  
The MEMORY button is used to confirm and  
memorize tuner station presets. Its use is  
described in detail in the Tuning Controls sec-  
tion of this manual.  
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RX-975 AM/FM Stereo Receiver  
10  
NUMERIC Buttons: Station  
Presets  
2. Enter the first digit of the station frequency  
using the NUMERIC buttons. The digit will  
appear in the frequency display and the  
second bar will flash. Enter the remain-  
ing digits of the frequency. When all of  
the digits have been entered, the tuner  
will automatically tune to the displayed  
station frequency.  
Tuning Controls  
The RX-975 features a digital synthesized  
AM/FM tuner with 30 station presets. Op-  
eration of the tuning functions involves the  
use of a row of numeric buttons and five large  
buttons below the MASTER VOLUME knob.  
The RX-975 can store up to 30 station pre-  
sets for recall at any time using the NUMERIC  
buttons. To memorize a station:  
1. Tune to the desired station, AM or FM.  
2. Press the MEMORY button on the front  
panel. A MEMORY indicator will flash  
for five seconds in the front panel display.  
BAND Button  
NOTE: On the USA version only, pressing  
1 in the FM mode will enter 10 as the  
digit in the frequency display. On the Eu-  
ropean version, it is necessary to press 1  
and then 0 to enter 10. For US FM sta-  
tions, press only one digit following the  
decimal point as shown in the first ex-  
ample below. For European FM stations,  
press two digits following the decimal  
point as show in the second example.  
The BAND button selects whether the tuner  
is in AM or FM mode. Press the button to  
toggle back and forth between AM and FM.  
A corresponding indicator will light at the  
left portion of the front panel display to  
confirm your choice and the currently tuned  
station frequency will be shown.  
3. While the MEMORY indicator is flashing,  
press the number of the preset where you  
wish to store the station frequency. For  
example, to memorize the station as  
preset 3, press the 3 button. To memo-  
rize preset 15, press the 1 button followed  
by the 5 button.  
TUNING Button  
4. A previously stored frequency is erased  
from memory when a new frequency is  
memorized for the same preset number.  
This rocker switch (or pair of buttons labeled  
CH UP/DOWN on the remote control) pro-  
vides two different tuning functions, depend-  
ing on the mode of operation.  
EXAMPLES:  
(USA FM) 87.50MHz  
Press 8>7>5  
To tune to a previously memorized  
station, just press the preset number  
on the NUMERIC buttons. For example,  
to tune to preset 3, press the 3 button. To  
tune to preset 15, press the 1 button and  
then press the 5 button.  
(Europe FM) 87.50MHz Press 8>7>5>0  
(all AM) 1610kHz  
Press 1>6>1>0  
In the normal FREQUENCY TUNING  
mode, press a TUNING button and release  
to manually jump to the next station frequency,  
regardless of whether or not a station is  
broadcasting on that frequency. For auto scan  
tuning, press and hold the TUNING button  
for approximately one second. An AUTO in-  
dicator will appear in the front panel dis-  
play and the tuner will begin automatically  
scanning up or down through the frequen-  
cies until the next available station is detected.  
If this is not the desired station, repeat the  
automatic tuning procedure to find the next  
station. Weak stations will be skipped dur-  
ing auto tuning.  
MONO Button  
The MONO button changes the FM mode  
from stereo reception to mono reception. In  
stereo mode, a stereo signal will be heard  
if the station is broadcasting a stereo sig-  
nal and there is sufficient signal strength. A  
stereo indicator will light in the front panel  
display. In mono mode, a mono signal will  
be heard even if the station is broadcasting  
a stereo signal.  
NOTE: If the TUNER is not already the se-  
lected INPUT SOURCE, selecting a station  
preset will automatically switch to the  
TUNER input and tune the memorized sta-  
tion.  
The NUMERIC buttons can also be used for  
direct access tuning (see below).  
NOTE: Switching to mono mode can be a  
useful way to improve the reception of weak  
or distant FM signals. Less signal strength  
is required for clean mono reception than  
for stereo reception.  
FREQUENCY DIRECT Button  
In the PRESET TUNING mode, press a  
TUNING button and release to jump to the  
next memorized station preset. Switch be-  
tween FREQUENCY and PRESET tuning  
modes by pressing the SHIFT button and then  
the BAND/TV button on the remote control.  
A PRESET indicator appears in the display  
when PRESET TUNING is activated.  
If you know the frequency of the desired  
station, you may tune it directly using the  
FREQUENCY DIRECT button and the NU-  
MERIC buttons.  
1. Press the FREQUENCY DIRECT button to  
change the NUMERIC buttons from sta-  
tion preset to Direct Access mode. The  
station frequency in the front panel dis-  
play will change to a series of four bars,  
representing the digits of a station fre-  
quency, with the first bar flashing.  
NOTE: Several indicators in the front panel  
display assist tuning. Alarge display shows  
the tuned frequency and increases or de-  
creases during tuning. A TUNED indicator  
lights when a sufficiently strong signal is  
received. A ST indicator lights when a ste-  
reo FM signal is received.  
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11  
English  
2. Use the NUMERIC buttons to enter the  
3-digit code (001) for the RX-975 – press  
0, then 0, then 1. The AUDIO button will  
flash each time you enter a digit.  
TUNE/PRESET Button  
[SHIFT] TV/BAND  
RR-949 Remote Control  
The RX-975 includes a handheld remote  
control that does far more than operate the  
RX-975. The RR-949 is a full-function program-  
mable remote control that can operate up  
to 8 audio/video components.  
The TUNE/PRESET button toggles between  
FREQUENCY TUNING mode (the CH TUN-  
ING buttons advance to the next station fre-  
quency) and PRESET TUNING mode (the CH  
TUNING Buttons advance to the next memo-  
rized station preset). To change modes, press  
the SHIFT button and then the TV/BAND but-  
ton. A PRESET indicator in the front panel  
DISPLAY will light when the PRESET mode  
is active.  
3. Store the code number by pressing the  
corresponding AUDIO button again. The  
button will blink twice to confirm the stor-  
age of the code in memory.  
A separate manual, included with the remote,  
gives detailed information on programming  
and using the RR-949 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-949 to  
operate the RX-975.  
POWER Button  
Duplicates the function of the STANDBY  
switch on the front panel. Press to activate  
the RX-975. Press again to deactivate. The  
main POWER button on the front panel must  
be in the ON position for the remote standby  
function to operate.  
CH TUNING Buttons  
A pair of buttons, labeled CH UP/DOWN,  
which duplicates the functions of the front  
panel TUNING button.  
NOTE: Many functions duplicate the RX-975  
front panel controls and are listed here only  
for your reference. Please refer to the pre-  
vious Front Panel Controls section of this  
manual if you need additional information.  
VOLUME Buttons  
In the normal FREQUENCY TUNING  
mode, press a CH button and release to  
manually jump to the next station frequency,  
regardless of whether or not a station is  
broadcasting on that frequency. For auto scan  
tuning, press and hold the CH button for ap-  
proximately one second. An AUTO indica-  
tor will appear in the front panel display and  
the tuner will begin automatically scanning  
up or down through the frequencies until the  
next available station is detected. If this is  
not the desired station, repeat the automatic  
tuning procedure to find the next station.  
Weak stations will be skipped during auto  
tuning.  
A pair of buttons which duplicate the func-  
tion of the front panel volume control. Press  
VOLUME UP to increase the volume and press  
VOLUME DOWN to decrease the volume.  
AUDIO Button  
To operate the RX-975 with the remote, make  
sure that the AUDIO mode is active by press-  
ing the AUD button on the remote before you  
start. If it is active, pressing command keys  
on the RR-949 will cause the AUDIO button  
to flash red. Once the AUDIO mode is ac-  
tive, it will stay active unless you press one  
of the other DEVICE buttons to control a dif-  
ferent component.  
SHIFT Button  
Used to access secondary functions on sev-  
eral RR-949 buttons. Press the SHIFT button  
and then the desired button.  
MUTE Button  
Push this button once to turn the sound off.  
A mute indication will appear in the front  
panel display. Press the MUTE button again  
to restore previous volume levels.  
Programming the RR-949  
In the PRESET TUNING mode, press a  
CH button and release to jump to the next  
memorized station preset. Switch between  
FREQUENCY and PRESET tuning modes by  
pressing the SHIFT button and then the  
BAND/TV button on the remote control. A  
PRESET indicator appears in the display when  
PRESET TUNING is activated.  
The RR-949 is preprogrammed from the  
factory to operate the RX-975. Should the  
AUDIO command set on your RR-949 not  
operate the RX-975, it’s possible that the  
programming has been inadvertently  
changed. To program the remote to  
operate the RX-975, set the AUDIO  
Code = 001:  
PRESET AUTO SCAN Button  
[SHIFT] MUTE  
This shift function activates a PRESET SCAN-  
NING feature. Press the SHIFT button and  
then the MUTE button to scan through all  
memorized station presets, playing each for  
five seconds before moving to the next. To  
stop the station scanning on the desired sta-  
tion preset, press the MUTE button again.  
1. Press the AUDIO button at the top of the  
remote while simultaneously pressing the  
MUTE button and hold both for at least  
one second. The AUDIO button will light  
in red for 20 seconds, indicating that you  
have entered the program mode. The next  
step must be done within this 20 second  
period, or the RR-949 will revert to its  
standard operating mode.  
TV/BAND Button  
Duplicates the AM/FM button on the front  
panel. Toggles between AM and FM modes.  
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RX-975 AM/FM Stereo Receiver  
12  
Connect your audio-only source components  
to these RCA inputs and outputs:  
Connect the RCA composite video output  
of the VCR to the RCA composite video input  
labeled VIDEO 1 PLAY.  
INPUT SOURCE Buttons  
Two rows of buttons duplicate the function  
of the ten INPUT SOURCE buttons on the front  
panel. Select an input source by pressing  
the appropriate button. The AUX 1 and AUX  
2 buttons correspond to the front panel  
VIDEO 4 and VIDEO 5 buttons.  
Phono Inputs  
Ground  
and Phono  
Hookup the VIDEO 1 REC video output to  
the RCA composite video recording input on  
your VCR.  
Connect the left and right output cables of  
a turntable to this pair of RCA inputs. Con-  
nect the ground wire from your turntable to  
the phono ground lug, labeled GND.  
VIDEO 2 – 5 Inputs  
NUMERIC Buttons  
These four sets of audio/video inputs allow  
connection of four additional video compo-  
nents such as a play-only VCR, DVD player,  
LaserDisc player, or DSS satellite receiver.  
Ten numeric buttons, labeled 0 through 9,  
duplicate the function of the NUMERIC but-  
tons on the front panel. Selects memorized  
station presets.  
CD Inputs  
Connect the left and right analog outputs from  
a CD player to the RCA input jacks labeled  
CD.  
Connect the RCA analog audio outputs of  
the first video component to the left and right  
RCA analog audio inputs labeled VIDEO 2.  
Then, connect the RCA composite video  
output of the video source to the correspond-  
ing RCA composite connection labeled  
VIDEO 2.  
Rear Panel Connections  
Tape Inputs and Outputs  
The RX-975 provides rear panel connections  
for five video sources, three audio sources,  
and a phono input for use with a turntable.  
These connections include standard RCA  
audio inputs and outputs plus composite video  
inputs and outputs.  
The RX-975 provides two sets of audio tape  
connections labeled TAPE 1 and TAPE 2. Each  
has a pair of inputs and a pair of record  
outputs that allow recording on either tape  
deck.  
Repeat for additional components, using  
VIDEO 3, VIDEO 4, and AUX/VIDEO 5.  
NOTE: Any of the video source inputs may  
also be used for an audio-only source. Sim-  
ply omit the video connection.  
Connect the left and right analog outputs from  
an audio tape deck to the TAPE 1 IN input  
jacks. Connect the TAPE 1 OUT output jacks  
to the INPUTS on the audio tape deck.  
The RX-975 includes two pairs of speaker  
connections for the built-in power amplifier  
as well as RCA preamp outputs for use with  
external amplifiers. In addition, a compos-  
ite video output connects the unit to your TV  
monitor.  
Connect a second tape deck to the TAPE 2  
connections – the outputs of the tape deck  
to the IN jacks on the RX-975 and the OUT  
jacks on the RX-975 to the inputs on the tape  
deck.  
TV Monitor Output  
The video output of the RX-975 sends the  
video signal to your TV monitor. Connect the  
TV MONITOR output to an RCA composite  
video input on your television monitor. What-  
ever input source is selected on the RX-975  
will appear on screen.  
NOTE: DO NOT plug any system compo-  
nent into an AC source until system hookup  
is complete and you are confident that all  
component-to-component connections have  
been properly made.  
VIDEO 1 Inputs/Outputs  
There are groups of connections for up to  
five video source components. Each group  
includes a pair of RCA analog audio inputs  
and a composite video input. One group,  
VIDEO 1, also includes a set of record out-  
puts for sending audio and video signals to  
a VCR.  
Speaker Outputs  
All video cables should have a 75  
ohm impedance rating. Although con-  
ventional audio interconnects will pass a  
video signal, their construction and limited  
bandwidth impose a performance penalty  
because, in part, they do not adhere to the  
75 ohm standard.  
The RX-975 has a built-in stereo amplifier  
for driving left and right speakers. There are  
two pairs of connections on the back panel  
which allow you to connect two pairs of  
speakers (A and B) and select them with a  
front-panel button.  
Connect your VCR to the VIDEO 1 group  
of inputs and outputs. This set of connections  
allows recording.  
When making signal connections, make sure  
that you always preserve proper channel con-  
sistency, i.e. connect LEFT channels to LEFT  
channel jacks and RIGHT channels to RIGHT  
channel jacks. All RCA-type connections on  
the RX-975 follow these standard color codes:  
NOTE: The combined speaker impedance  
must be a minimum of 4 ohms. If you are  
driving just one pair of speakers (A or B  
connections), use speakers with a nominal  
impedance of 4 ohms or higher. If you are  
driving two pairs of speakers (A and B) si-  
multaneously, use speakers rated at 8 ohms  
or higher.  
Connect the analog audio outputs of the  
VCR to the VIDEO 1 PLAY left and right RCA  
audio jacks. Connect the VIDEO 1 REC left  
and right RCA audio output jacks to the audio  
inputs on the VCR.  
Left audio: RCA jack with white inset  
Right audio: RCA jack with red inset  
Video: RCA jack with yellow inset  
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13  
English  
The back panel speaker connections con-  
sist of two groups of binding posts which  
accept bare wire or banana type plug con-  
nectors (except in the European Community  
countries where their use is not permitted).  
One group is used for the A speakers; the  
other for the B speakers. Each group has a  
positive (+) and negative (–) connection for  
the right speaker and a positive (+) and  
negative (–) connection for the left speaker  
FM Wire Antenna  
NOTE: The preamp outputs are connected  
to power amplifier inputs with metal jump-  
ers in a standard PRE OUT/MAIN IN con-  
figuration. To disable the built-in power  
amplifiers and use external amplifiers, it will  
be necessary to remove these jumpers. Save  
them for future use.  
The RX-975 includes a wire antenna to re-  
ceive FM signals. In many countries (including  
the USA), this antenna is a T-shaped twin-  
conductor 300 ohm antenna. Remove this  
antenna from the box and connect its two  
conductors to the two screw terminals on the  
supplied 300 ohm to 75 ohm adaptor. Con-  
nect the coax plug on the converter to the  
FM 75 ohm antenna connector on the  
RX-975.  
To hook up the RCA audio outputs  
to an external amplifier, connect a standard  
audio cable from each output to the input  
of the amplifier channel that will power the  
corresponding speaker.  
Each pair of connectors is color-coded for  
polarity: red for the positive connection and  
black for the negative connection. All speak-  
ers and all speaker wire is also marked for  
polarity. It is essential for proper performance  
to maintain this polarity at all speaker con-  
nections. Always connect the positive terminal  
of each speaker to the corresponding red  
speaker terminal on the RX-975 and the  
negative speaker terminal to the correspond-  
ing black connector on the RX-975.  
For best reception, unfold the T-shaped wire  
antenna. There are eyelets at both ends of  
the T, which allow tacking the antenna to a  
wall, if desired. Experiment with position-  
ing for best reception.  
Antenna Connections  
The RX-975 requires two antennas to receive  
radio signals, one for AM and one for FM.  
Most users will get acceptable reception using  
the indoor antennas which are supplied with  
the RX-975. Instructions for hooking up these  
antennas follow.  
In some countries, the RX-975 may be sup-  
plied with a single wire FM antenna termi-  
nated by a 75 ohm coax connector. If your  
unit is supplied with this antenna, connect  
it directly to the FM 75 ohm antenna con-  
nector.  
Route the wires from the RX-975 to the speak-  
ers. Give yourself enough slack so you can  
move the components to allow access to the  
speaker connectors. If you are using banana  
plugs, connect them to the wires and then  
plug into the backs of the binding posts. The  
collars of the binding posts should be screwed  
in all the way (clockwise). If you are attaching  
bare wires directly to the binding posts,  
separate the wire conductors and strip back  
the insulation from the end of each conduc-  
tor. Be careful not to cut into the wire strands.  
Unscrew the binding post collars. Insert the  
wire into the hole in the shaft. Turn the col-  
lars clockwise to clamp the wire in place.  
NOTE: If you are located a long distance  
from the radio transmitters, you may use  
an outdoor antenna to improve reception.  
Outdoor antenna systems can be danger-  
ous if they are not properly grounded and  
should be installed by a professional con-  
tractor familiar with the electrical code re-  
quirements in your local area.  
NOTE: To use an outdoor antenna, connect  
its 75 ohm coax lead wire (or 300 ohm  
twin-conductor wire and 300 ohm to 75  
ohm adaptor) to the FM 75 ohm connector  
in place of the indoor wire antenna, only  
after a professional contractor has installed  
the antenna system in accordance with lo-  
cal electrical codes.  
AM Loop Antenna  
The RX-975 includes a loop antenna to re-  
ceive AM radio signals. Remove this antenna  
from the box and locate it near the RX-975.  
NOTE: Be sure there are no loose wire  
strands that could touch adjacent wires or  
connectors.  
Connect the 300 ohm twin-conductor wire  
from the loop antenna to the pair of screw  
terminals labeled AM LOOP, attaching one  
wire to each terminal. It does not matter which  
wire attaches to which terminal, but make  
sure that the connections are solid and that  
the two wires do not touch.  
Preamp Inputs/Outputs  
The RX-975 provides a pair of variable-level  
RCA preamp audio outputs and a pair of  
RCA amplifier inputs that allow you to use  
external amplifiers in place of, or in addi-  
tion to, the built-in amplifiers.  
You may need to rotate or otherwise reori-  
ent the antenna to find the best position.  
NOTE: To use an outdoor antenna, connect  
its 300 ohm twin-conductor wire to the AM  
terminals in place of the loop antenna, only  
after a professional contractor has installed  
the antenna system in accordance with lo-  
cal electrical codes.  
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RX-975 AM/FM Stereo Receiver  
14  
AC Power Connections  
AC Input  
Your RX-975 is configured at the factory for  
the proper AC line voltage in the country  
where you purchased it (120 volts AC, 60Hz  
in the US or 230 volts AC, 50Hz in the  
European community). The AC line configu-  
ration is noted on a decal on the back of  
your unit.  
Plug the supplied cord into the AC INPUT  
receptacle on the back of the unit.  
AC Convenience Outlet  
[USA version only]  
Two AC outlets let you plug a power cord  
from a source component or other accessory  
into the back of the RX-975 so that it will  
be turned on and off automatically. The outlet  
is powered whenever the RX-975 is fully  
active and off when it is in STANDBY mode.  
Remote External Sensor  
This 3.5 mm mini-jack receives command  
codes from industry-standard infrared receiv-  
ers (Xantech, etc.) via hard-wired connec-  
tions. This feature could prove useful when  
the unit is installed in a cabinet and the front-  
panel sensor is blocked. Consult your au-  
thorized Rotel dealer for information on these  
external repeaters and the proper wiring of  
a jack to fit the mini-jack receptacle.  
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15  
English  
Audio  
Specifications  
Continuous Amplifier Power:  
100 watts/channel  
(20–20k Hz, <0.05% THD, 8 ohms)  
All specifications are accurate at the time of  
printing.  
Total Harmonic Distortion:  
<0.05% at rated power  
<0.05% at rated power  
Intermodulation Distortion (60 Hz: 7 kHz):  
Frequency Response:  
Rotel reserves the right to make improvements  
without notice.  
Line Level: 10 Hz - 70 kHz, 3 dB  
Phono: 20 Hz - 20 kHz, 1.5 dB  
Rotel and the Rotel HiFi logo are registered  
trademarks of The Rotel Co, Ltd., Tokyo, Japan.  
Signal to Noise Ratio (IHF “A” weighted):  
Input Overload:  
92 dB  
Line Inputs:5 V  
Phono Inputs: > 120 mV  
Preamplifier Output Voltage:  
Input Sensitivity/Impedance:  
1.1 V  
Line Level: 200 mV/47 kohms  
Phono: 3.1 mV/47 kohms  
Tone Controls (Bass/Treble):  
8 dB at 100 Hz/10 kHz  
Video  
Frequency Response:  
Signal to Noise Ratio:  
Input Impedance:  
Output Impedance:  
Output Level:  
3 Hz-10 MHz, 3 dB  
45 dB  
75 ohms  
75 ohms  
1 volt  
FM Tuner  
Usable Sensitivity:  
14.2 dBf  
50dB Quieting Sensitivity:  
20.2 dBf (mono)  
45.3 dBf (stereo)  
Signal to Noise Ratio (at 65 dBf):  
Harmonic Distortion (at 65 dBf):  
70 dBf (mono)  
65 dBf (stereo)  
0.3% (mono)  
0.5% (stereo)  
Frequency Response:  
Capture Ratio:  
30 Hz-14 kHz, 1.5 dB  
2.0 dB  
Alternate Channel Selectivity:  
Spurious Response Ratio:  
Image Response Ratio:  
IF Response Ratio:  
47 dB ( 400 kHz)  
80 dB  
65 dB  
80 dB  
AM Suppression Ratio:  
Stereo Separation (100Hz/1 kHz/10 kHz):  
Output level:  
52 dB  
40 dB/45 dB/35 dB  
550 mV  
Antenna Input:  
75 ohms unbalanced  
AM Tuner  
Sensitivity:  
500 µV/m  
25 dB  
Selectivity:  
Image Response Ratio:  
Signal to Noise Ratio:  
Output level:  
35 dB  
40 dB  
160 mV  
Loop Antenna  
Antenna Input:  
General  
Power Consumption:  
350 watts  
Power Requirements (AC):  
120 volts, 60 Hz (USA version)  
230 volts, 50 Hz (European version)  
Weight:  
11.5 Kg/25.4 lb.  
Dimensions (W x H x D):  
450 x 158 x 400 mm  
173/4" x 61/4" x 153/4"  
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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 OMRX-975ENG 042499  
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