Manual Rotel RA10 (page 7 of 10) (English)

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Input Signal Connections

[See Figure

NOTE: To prevent loud noises that neither you nor your speakers will

appreciate, make sure the system is turned off when you make any

signal connections.

Phono Input

and Ground Connection

Plug the cable from the turntable into the appropriate left and right phono

inputs. If the turntable has a “ground” wire, connect it to the screw terminal

to the left of the Phono inputs. It will help prevent hum and noise.

Line Level Inputs

The CD, Tuner, and Aux inputs of the RA-10 are “line level” inputs. These

are for connecting components such as CD players, Hi Fi or NICAM

Stereo video cassette recorders, tuners, Laser Disc players or the analog

output from a CD-ROM drive.

The Left and Right channels are labeled and should be connected to the

corresponding channels of the source component. The Left connectors

are white, the Right connectors are red. Use high quality RCA cables for

connecting input source components to the RA-10. Ask your authorized

Rotel dealer for advice about cables.

Recorder Connections

[See Figure

The 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.

When connecting a recorder to the RA-10 remember that the outputs of the

recorder must be connected to the tape inputs of the RA-10. Similarly the

tape outputs of the RA-10 must be connected to the inputs of the recorder.

As with other sources 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 Outputs are not affected by the Volume, Balance or

Tone controls. They receive a fixed level signal.

Preamp Outputs

The RA-10 has a set of preamp outputs. The signal from the source selected

with the Function Selector is always available from these outputs. Typically

these outputs are used to provide a signal to another integrated ampliﬁer

or power ampliﬁer, which is used to drive remote speakers

NOTE: Changes to the settings of the Volume, Balance or Tone controls

affect the signal from the Preamp Outputs.

Speaker Outputs

Speaker Selector Switch

[See Figure

The RA-10 has two sets of speaker outputs, labeled “A”

and “B”

.The

speaker outputs are controlled by the switch 6 on the front panel.

Speaker Selection

If only one set of speakers will be used at any given time, the speakers may

have an impedance as low as 4 ohms. If there are times when both the A

and B speakers will be used, all the speakers should have an impedance

of 8 ohms or more. Speaker impedance ratings are less than precise. In

practice, very few loudspeakers will present any problems for the RA-10.

See your authorized Rotel dealer if you have any questions.

Speaker Wire Selection

Use insulated two-conductor stranded wire to connect the RA-10 to the

speakers. The size and quality of the wire can have an audible effect

on the performance of the system. Standard speaker wire will work, but

can result in lower output or diminished bass response, particularly over

longer distances. In general, heavier wire will improve the sound. For

best performance, you may want to consider special high-quality speaker

cables.Your authorized Rotel dealer can help in the selection of cables

for your system.

Polarity and Phasing

The polarity – the positive/negative orientation of the connections – for

every speaker and ampliﬁer connection must be consistent so all the

speakers will be in phase. If the polarity of one connection is reversed,

bass output will be very weak and stereo imaging degraded. All wire

is marked so you can identify the two conductors. There may be ribs

or a stripe on the insulation of one conductor. The wire may have clear

insulation with different color conductors (copper and silver). There may

be polarity indications printed on the insulation. Identify the positive and

negative conductors and be consistent with every speaker and ampliﬁer

connection.

Speaker Connection

Turn off all the components in the system before connecting the speakers.

The RA-10 has color-coded binding post type speaker connectors on the

back panel (except in European Community countries where their use

is not permitted). These connectors accept bare wire, connector lugs, or

dual banana type connectors.

Route the wire from the RA-10 to the speakers. Give yourself enough

slack so you can move the components to allow access to the speaker

connectors. If you are using dual banana plugs, connect them to the wires

and then plug into the backs of the binding posts. The thumbscrews of the

binding posts should be screwed in all the way (clockwise).

If you are using terminal lugs, connect them to the wires. If you are attaching

bare wires directly to the binding posts, separate the wire conductors

and strip the insulation from the end of each conductor. Be careful not

to cut into the wire strands. Unscrew (turn counterclockwise) the binding

post thumbscrews. Place the connector lug or wire around the binding

post shaft. Turn the thumbscrews clockwise to clamp the connector lug

or wire ﬁrmly in place.

NOTE: Be sure there are no loose wire strands that could touch adjacent

wires or connectors.

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Rotel RA10 Manual

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