Recorder Connections; Preamp Outputs - Rotel RA-971 MKII Manual De Instrucciones

The Left and Right channels are clearly labeled and should be
connected to the corresponding channels of the source compo-
nent. The Left RCA connectors are white, the Right connectors
are red. Use high quality RCA cables for connecting input source
components to the RA-971MKII. Ask your authorized Rotel dealer
for advice about cables.

Recorder Connections

[See Figure 2 for recorder connection illustration.]
The Tape 1 and Tape 2 inputs and outputs can be connected to
any record/playback device that accepts standard line level ana-
log input and output signals. Typically that will be a conventional
tape recorder.
When connecting a recorder to the RA-971MKII remember that
the outputs of the recorder must be connected to the tape inputs
of the RA-971MKII. Similarly the tape outputs of the RA-971MKII
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.

Preamp Outputs

The RA-971MKII has a set of preamp outputs. The signal from the
source selected with the Listening 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
Speaker Outputs
Remote Speaker Switch
The RA-971MKII has two sets of speaker outputs, labeled "Direct"
and "Remote" . The Direct outputs are directly connected
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to the amplifier output circuitry – there are no switches in the sig-
nal path. This ensures the purest possible sound. The Remote out-
puts are controlled by the Remote Speaker switch
front panel. Speakers connected to the Direct outputs are always
heard. Speakers connected to the Remote outputs are active only
when the Remote Speaker switch is pushed in.
Note: If there are times when you will want to turn off the speak-
ers, such as when you want to listen with headphones, the speak-
ers should be connected to the Remote output terminals. This will
enable you to control the speakers with the Remote Speaker
switch.
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and
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on the
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Speaker Selection
If only one set of speakers will be connected to the RA-971MKII,
the speakers may have an impedance as low as 4 ohms. If speak-
ers will also be connected to the Remote speaker outputs, 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-971MKII. See
your authorized Rotel dealer if you have any questions.
Speaker Wire Selection
Use insulated two-conductor stranded wire to connect the
RA-971MKII to the speakers. The size and quality of the wire can
have an audible effect on the performance of the system. Stan-
dard speaker wire will work, but can result in lower output or di-
minished bass response, particularly over longer distances. In
general, heavier wire will improve the sound. For best perfor-
mance, 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 de-
graded. 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 conduc-
tors (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-971MKII has color-coded binding post type
speaker connectors on the back panel (except in European Commu-
nity 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-971MKII 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 counter-
clockwise) 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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