Rotel RC-1070 User Manual

Page 1
Owner’s Manual
RC-1070
Stereo Control Amplifier
STEREO CONTROL AMPLIFIER RC-1070
CONTOUR
OFF
STAND BY
L-1
PHONES
L-2HLH
TUNER
PHONO AUX
RECORDING LISTENING
OFF
TUNER
CD
PHONO
TAPE 1
AUXCD
TAPE 1
TAPE 2
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RC-1070 Stereo Control Amplifier
2
Page 3
3
English
RSX-972 Surround Sound Receiver

Cautions

WARNING: There are no user serviceable parts inside. Refer all servicing to qualified service personnel.
WARNING: To reduce the risk of fire or electric shock, do not expose the unit to moisture or water. Do not allow foreign objects to get into the enclosure. If the unit is exposed to moisture, or a foreign object gets into the enclosure, immediately dis­connect the power cord from the wall. Take the unit to a qualified service person for inspection and necessary repairs.
Read all the instructions before connecting or operating the component. Keep this manual so you can refer to these safety instructions.
Heed all warnings and safety information in these instructions and on the product itself. Follow all operating instructions.
Clean the enclosure only with a dry cloth or a vacuum cleaner.
You must allow 10 cm or 4 inches of unobstructed clearance around the unit. Do not place the unit on a bed, sofa, rug, or similar surface that could block the ventilation openings. If the unit is placed in a bookcase or cabi­net, there must be ventilation of the cabinet to allow proper cooling.
Keep the component away from radiators, heat registers, stoves, or any other appliance that produces heat.
The unit must be connected to a power supply only of the type and voltage specified on the rear panel. (USA: 115 V/60Hz, EC: 230V/50Hz)
Connect the component to the power outlet only with the supplied power supply cable or an exact equivalent. Do not modify the supplied cable. Do not defeat grounding and/or polarization provisions. The cable should be connected to a 2-pin polarized wall outlet, matching the wide blade of the plug to the wide slot of the receptacle. Do not use extension cords.
Do not route the power cord where it will be crushed, pinched, bent, ex­posed to heat, or damaged in any way. Pay particular attention to the power cord at the plug and where it exits the back of the unit.
The power cord should be unplugged from the wall outlet if the unit is to be left unused for a long period of time.
Immediately stop using the component and have it inspected and/or ser­viced by a qualified service agency if:
• The power supply cord or plug has been damaged.
• Objects have fallen or liquid has been spilled into the unit.
• The unit has been exposed to rain.
• The unit shows signs of improper operation
• The unit has been dropped or damaged in any way
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RC-1070 Stereo Control Amplifier

1: Controls and Connections

STAND BY
PHONES
L-2
CONTOUR
L-1
4
STEREO CONTROL AMPLIFIER RC-1070
OFF
H
LH
VOLUME
RECORDING LISTENING
OFF
TUNER
PHONO AUX
CD
PHONO
TAPE 1
TUNER
AUXCD
TAPE 1
TAPE 2
1 3 4 5 7 86
2
LEFT
RIGHT
MODEL NO. RC-1070
LEFT
RIGHT
SERIAL NO.
AUXTUNERCDPHONO TAPE 2
TAPE 1
IN OUT
IN OUT
9 1110 15 1612 13 14
MUTE
POWER
A
123
456
7
B
PHONO
C
89
0
+10
PTY TA TP
CD TUNER
AUX 1 AUX 2 TAPE 1 TAPE 2
PLAY
BAND
VOLUME
TUNING
DISPLAY
TUNE
/PRESET
OUTPUTS
12
12V TRIGGER OUT
SWITCHED 400W MAX
D
E
F
STOP
RANDOMPAUSE
G
RR-AT92
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2: Output Connections

LEFTRIGHT
SPEAKERS
LEFT INPUT
RIGHT INPUT
TAPE 1
IN OUT
AUXTUNERCDPHONO TAPE 2
IN OUT
MODEL NO. RC-1070
OUTPUTS
12
LEFT
RIGHT
LEFT
RIGHT
SWITCHED 400W MAX
SERIAL NO.
12V TRIGGER OUT
5
English
ROTEL RC-1070
AMPLIFIER

3: Input Connections

PHONO
TAPE 1
AUXTUNERCDPHONO TAPE 2
IN OUT
IN OUT
MODEL NO. RC-1070
LEFT
RIGHT
LEFT
RIGHT
SERIAL NO.
OUTPUTS
12
CD
ROTEL RC-1070
12V TRIGGER OUT
SWITCHED 400W MAX
TAPE
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RC-1070 Stereo Control Amplifier
6
English
Contents
Boxed numbers refer to RC-1070 illustration. Boxed letters refer to RR-AT92 illustration.
Cautions ................................................3
1: Controls and Connections 4 2: Output Connections 5 3: Input Connections 5
About Rotel ...........................................6
Getting Started ...................................... 6
Unpacking 7 Placement 7 Cables 7
Remote Control ......................................7
Audio Controls 7 CD Functions 7 DVD Functions 7 Tuner Functions 7 Remote Sensor 7 Remote Control Batteries 7
Signal Connections ..................................8
Outputs 8 Line Level Inputs 8 Recorder Connections 8 Phono Inputs
Ground Terminal 8

About Rotel

A family whose passionate interest in music led them to manufacture high fidelity compo­nents of uncompromising quality founded Rotel almost 40 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 employ­ees.
The engineers work as a close team, listen­ing to, and fine tuning each new product until it reaches their exacting musical standards. They 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 transformers are manufactured in Rotel’s own factory.
Rotel’s reputation for excellence has been earned through hundreds of good reviews and awards from the most respected reviewers 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.
All of us at Rotel thank you for buying this product and hope it will bring you many hours of enjoyment.

Getting Started

Thank you for purchasing the Rotel RC-1070 Stereo Control Amplifier. When used in a high­quality audio system, it will provide years of musical enjoyment.
The RC-1070 is a full featured, high perfor­mance preamplifier. All aspects of the design have been optimized to retain the full dynamic range and subtle nuances of your music. The RC-1070 has a highly regulated power sup­ply incorporating a Rotel custom-designed power transformer. This low impedance power supply has ample power reserves, enabling the RC-1070 to easily reproduce the most de­manding audio signals. This type of design is more expensive to manufacture, but it is bet­ter for the music.
The RC-1070 printed circuit boards are de­signed with Symmetrical Circuit Traces. This insures that the precise timing of the music is maintained and faithfully recreated. The RC-1070 circuitry uses metal film resistors and polystyrene or polypropylene capacitors in important signal paths. All aspects of this de­sign have been examined with the final goal being faithful reproduction of music.
The RC-1070 is straightforward in its installa­tion and operation. If you have experience with other stereo systems, you shouldn’t find any­thing perplexing. Simply plug in the associ­ated components and enjoy.
AC Power and Control ............................ 8
AC Power Input 8 POWER/STANDBY Switch
Power Indicator 8 Auxiliary Power Outlets
(North American version) 8 12V TRIGGER Connection 8
Audio Controls ....................................... 9
VOLUME Control 9 CONTOUR Selector 9 LISTENING Selector 9 RECORDING Selector 9 MUTE Button 9 PHONES Output 9
Specifications .........................................9
Please read this manual carefully. It provides complete information on how to incorporate the RC-1070 into your system as well as gen­eral information that will help you get optimum performance. Please contact your authorized Rotel dealer for answers to any questions. In addition, all of us at Rotel welcome your ques­tions and comments.
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English

Unpacking

Carefully remove the RC-1070, the remote control, and accessories from the shipping carton. Save the shipping carton and all en­closed packing material for future use. Ship­ping or moving the unit in anything other than the original packing material may result in se­vere damage.
Keep the original sales receipt. It is your best record of the date of purchase, which you will need in the event warranty service is ever required.

Placement

Like all audio components that handle low-level signals, the RC-1070 can be affected by its environment. To minimize the chance the RC-1070 will pick up hum or interference, do not place it on top of an amplifier or any other device with a large power transformer. Keep the RC-1070 away from devices that have mo­tors for the same reason. Do not place the RC-1070 where it will be exposed to direct sunlight.
We recommend installing the RC-1070 in fur­niture designed to house audio components. Such furniture is designed to reduce or sup­press vibration which can adversely affect sound quality. Ask your authorized Rotel dealer for advice about component furniture and proper installation of audio components.
The RC-1070 is supplied with an RR-AT92 remote control and must be placed where the infrared signal from the remote can reach the front panel Remote Sensor.

Cables

Keep power cords, digital cables, and audio cables away from each other. This will mini­mize the chance of the audio signal cables picking up noise or interference from the power cords or digital cables. Using high quality, shielded cables will also help to prevent noise or interference. If you have any questions see your authorized Rotel dealer for advice about the best cable to use with your system.

Remote Control

The RC-1070 includes an RR-AT92 remote con­trol that operates many of the controls of the RC-1070. In addition, the remote operates basic features of some Rotel CD players, DVD players, and AM/FM tuners.

Audio Controls

The RR-AT92 duplicates the basic audio func­tions of the RC-1070 front panel. When a function is available on both the front panel and the remote, a number (front panel con­trols) and a letter (remote buttons) are shown in the instructions. For example, to change the volume level you can either turn the control
on the front panel or use the buttons on the remote control. When only one identi­fier appears, that control is available only on the front panel or the remote, but not both.

CD Functions

The PLAY, STOP, PAUSE, TRACK +/–, RAN­DOM buttons, and NUMERIC keys (0-10) operate many Rotel CD players after the CD button on the remote has been pressed.

DVD Functions

The PLAY, STOP, PAUSE, and TRACK +/–, buttons operate Rotel DVD players, after the AUX1 button on the remote has been pressed.

Tuner Functions

The BAND, TUNING, and additional tuning feature buttons operate Rotel tuners, after the TUNER button on the remote has been pressed.
By default, the RR-AT92 operates the Rotel RT-955 tuner. Alternatively, the remote can be reprogrammed to operate the RT-940AX tuner. This programming only needs to be done once:
To program for the RT-940AX: press the POWER button and the 2 button simultaneously.
To program for the RT-955: press the POWER button and the 1 button simultaneously.

Remote Sensor

The remote sensor receives infrared signals from the remote control. Do not cover or block the sensor. It must be unobstructed or the re­mote control will not work properly.
The operation of the Remote Sensor can also be affected if it is exposed to bright sunlight or certain types of lighting (such as halogen lights) that emit infrared light. In addition re­mote control functions may not work reliably if the batteries in the RR-AT92 are weak.
NOTE
: To use the remote, aim it at the remote
sensor on the front panel of the RC-1070.

Remote Control Batteries

Two UM-4/AAA size batteries (supplied) must be installed before the remote control can be used. To install the batteries, remove the cover on the back of the RR-AT92. Install the batter­ies as shown in the illustration in the battery well. Test the control for proper operation, then replace the cover. When the batteries become weak the remote control won’t operate the RC-1070 consistently. Installing fresh batter­ies should eliminate the problem.
NOTE
: Remove the batteries from the remote
if it will not be used for a long period of time. Do not leave run down batteries in the re­mote control; they can leak corrosive chemi­cals which will damage the unit.
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RC-1070 Stereo Control Amplifier
8

Signal Connections

The RC-1070 has inputs for line level and phono source components, connections for audio tape decks, and output connections to send signals to power amplifiers.
NOTE
: To prevent loud, potentially damaging,
noises, make sure the system is turned off when you make any signal connections.

Outputs

See Figure 2
The RC-1070 has RCA-type output connectors that are compatible with the inputs of most power amplifiers. Use high quality cables and be sure to connect the Left and Right channel outputs of the RC-1070 to the correct chan­nels of the amplifier.
There are two sets of variable gain outputs on the RC-1070. The second set of outputs may be used in custom system configurations to drive a second power amplifier or to supply a sig­nal to a signal processor.

Line Level Inputs

See Figure 3
The RC-1070 has three pair of conventional RCA input connectors for line level components such as CD players, video cassette recorders, tuners, Laser Disc players, or DVD players. These inputs are labeled CD, TUNER, and AUX.
The Left and Right channels are clearly labeled and should be connected to the correspond­ing channels of the source component. The Left RCA connectors are white, the Right con­nectors are red. Use high quality RCA cables for connecting input source components to the RC-1070. Ask your authorized Rotel dealer for advice about cables.

Recorder Connections

See Figure 3
Tape inputs and outputs can be connected to any record/playback device that accepts stan­dard line level analog input and output sig­nals. Typically that will be a conventional tape recorder. There are two sets of tape connec­tions on the back panel, labelled TAPE 1 and TAPE 2.
When connecting a recorder to the RC-1070, the outputs of the recorder must be connected to the tape inputs of the RC-1070. Similarly the tape outputs of the RC-1070 must be con­nected to the inputs of the recorder. Be sure to connect the Left and Right channels of each device to the proper channels on the associ­ated components. Use high quality connect­ing cables to prevent loss of sound quality.
NOTE
: The tape inputs can also be used for
standard playback-only source components, omitting the output connections.

Phono Inputs Ground Terminal

The RC-1070 has a built-in phono preampli­fier. To connect a turntable, connect the Left and Right RCA signal cables to the Left and Right RCA inputs labeled PHONO. Be sure to connect the Left and Right channels to the proper channels. Attach the ground wire from the turntable to the Ground screw-terminal on the back panel.

AC Power and Control

AC Power Input

The RC-1070 does not use a significant amount of power. However there are two auxiliary power outlets on the back panel, which can be used to supply power for other units. Con­sequently, it is best to plug the RC-1070 di­rectly into a 2-pin polarized wall outlet. Avoid the use of extension cords. A heavy duty power outlet strip may be used if it (and the wall out­let) is rated to handle the current demanded by the components connected to it.
Your RC-1070 is configured at the factory for the proper AC line voltage in the country where you purchased it (USA: 115 volts/60Hz AC or CE: 230 volts /50 Hz AC ). The AC line configuration is noted on a decal on the back panel. Plug the supplied cord into the AC INPUT receptacle on the back of the unit.
NOTE
: Should you move your RC-1070 am-
plifier to another country, it is possible to reconfigure your amplifier for use on a differ­ent line voltage. Do not attempt to perform this conversion yourself. Opening the enclo­sure of the RC-1070 exposes you to danger­ous voltages. Consult a qualified service person or the Rotel factory service department for information.
If you are going to be away from home for an extended period of time such as a month­long vacation, it is a sensible precaution to unplug your audio and video components while you are away.

POWER/STANDBY Switch Power Indicator

The Power Indicator light above the STANDBY button is always illuminated when the RC-1070 is connected to a live AC outlet. When the front panel STANDBY button or remote con­trol POWER button is pressed, the RC-1070 is turned on. The LISTENING control indica­tor lights and VOLUME CONTROL indicator light will illuminate. Pressing either button again will put the RC-1070 in standby mode and these indicator lights are turned off.

Auxiliary Power Outlets (North American version)

The RC-1070 has two switched outlets on the back panel. Power is available from these outlets when the RC-1070 is turned on. These outlets can provide up to a total of 400 watts. They are appropriate for supplying power to signal sources, such as CD players, tuners, or tape decks. They should not be used for power amplifiers. Connecting components that will draw more than 400 watts to these outputs could damage the RC-1070.
NOTE
: Do not connect a power amplifier to
the auxiliary power outlets on the RC-1070. Power amplifiers often draw more power than these outlets can provide.

12V TRIGGER Connection

Several Rotel amplifiers can be turned on and off using a 12 volt trigger signal. This connection provides this 12 volt trigger signal. When the RC-1070 is activated, a 12 volt DC signal appears at this connector and will turn on an amplifier. When the RC-1070 is put in STANDBY mode, the trigger signal is interrupted and the amplifier will be turned off.
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English

Audio Controls

The following controls are used to operate the RC-1070.

VOLUME Control

Turn the front panel VOLUME control clock­wise to increase the volume, or counterclock­wise to decrease the volume. Alternatively, press the VOL buttons on the remote control to ad­just the volume up or down

CONTOUR Selector

Instead of conventional tone controls, the RC-1070 has a front-panel CONTOUR con­trol which selects one of five available settings. Each setting provides a fixed frequency con­tour as follows:
OFF: the tone contour circuits are bypassed to ensure the purest possible sound.
L-1: moderate increase in bass frequencies (typically +3dB @ 100Hz).
L-2: more increase in bass frequencies (typi­cally +4dB @ 100Hz).
H: moderate increase in high frequencies (+3dB @ 10kHz).
LH: combination of L-2 bass and H high fre­quency increases.

LISTENING Selector

The setting of the LISTENING selector controls which of the input signals goes to the main outputs and onto the power amplifier – or, more simply, which source is heard. Turn the front panel control to the source you want to hear, or press the corresponding button on the RR-AT92 remote.
NOTE
: The AUX1 button on the remote dupli-
cates the function of the front panel AUX but­ton.

RECORDING Selector

The RC-1070 can record from any input source (except TAPE 2) to a recorder connected to TAPE 1 or TAPE 2 outputs. To select an input source for recording, turn the RECORDING control on the front-panel to the desired source.
This selection is independent of the source selected for listening. While recording, you may still select a different source using the LISTENING selector.
If you have a three-head recorder or a DAT recorder that allows simultaneous read and write operation, you can monitor your recording by setting the LISTENING switch to the TAPE 1 or TAPE 2 position.
NOTE
: If you select TAPE 1 with the RECORD-
ING control, the recording signal will only be available at the TAPE 2 recording outputs, not the TAPE 1 outputs. To dub a tape, select TAPE 1 and record to the tape deck connected to the TAPE 2 outputs.

MUTE Button

To temporarily mute the sound of the system press the MUTE button on the RR-AT92 remote. Press the button again to return the sound volume to the original level. The LED in the volume control will flash when the unit is muted.

PHONES Output

The PHONES output allows you to connect headphones for private listening. This output accepts standard stereo phone (1/4”) plugs. If your headphones have another type of plug, such as a 1/8” mini-plug, you will need an adapter plug. Contact your authorized Rotel dealer, to get the correct adapter plug.
NOTE
: Plugging in headphones does not cut
off the signal to the outputs. In most instances, you should turn off the power amplifier when listening to headphones.

Specifications

Total Harmonic Distortion (20 Hz-20 kHz)
< 0.006%
Intermodulation Distortion
< 0.006% at 1V output (60 Hz:7 kHz, 4:1)
Input Sensitivity/Impedance
Line Level: 150 mV/24 kOhms Phono (MM): 1.2mV/68k ohms
Output Level/Impedance
1V/100 Ohms
Usable Headphone Impedance
8 – 2,000 Ohms
Frequency Response
Line Level: 4Hz – 100kHz, +0, -3dB Phono: 20Hz – 20kHz, ±0.5dB
Signal to Noise Ratio (IHF “A” weighted)
Line Level: 95 dB Phono: 70 dB
Phono Overload:
70mV
Power Requirements
USA: 115 Volts, 60 Hz CE: 230 Volt, 50 Hz
Power Consumption
10 Watts
Dimensions (W x H x D)
430 x 92 x 344 mm 17” x 3
5/8” x 135/8
Weight (net)
5.4 kg, 11.9 lbs.
All specifications are accurate at the time of printing.
Rotel reserves the right to make improvements without notice.
Rotel and the Rotel HiFi logo are registered trademarks of The Rotel Co, Ltd., Tokyo, Japan.
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The Rotel Co. Ltd.
10-10 Shinsen-Cho
Shibuya-Ku
Tokyo 150-0045
Phone: +81 3-5458-5325
Fax: +81 3-5458-5310
North Reading, MA 01864-2699
Phone: +1 978-664-3820
Fax: +1 978-664-4109
Worthing, West Sussex BN11 2RX
Phone: +44 (0)1903 524 813
Fax: +44 (0)1903 524 831
Phone: +49 05201-87170
Fax: +49 05201-73370
Japan
Rotel of America
54 Concord Street
USA
Rotel Europe
Meadow Road
England
Rotel Deutschland
Kleine Heide 12
D-33790 Halle/Westf.
Germany
www.rotel.com
082 OM-RC-1070 English 090500
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