Connecting speakers, Speaker ratings, Phasing your speaker system – Onkyo RDA-7.1 User Manual

Page 12

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12

Connecting speakers

Before connecting the speakers, place them correctly by consulting the instruction manuals that came with them.
Also, read

on page 11.

For surround playback, the configuration and placement of your speakers are very important.

Speaker ratings

In actuality, you can connect any type of speaker to the
RDA-7.1 and it will operate. The RDA-7.1 can operate
low-impedance speakers with Power levels that exceed
optimum levels with no problem. With many of the
speakers that are nominally rated with an impedance of 4
ohms, their impedance may lower down to 2 ohms within
a specific frequency range. You should not experience
any problems at these low impedances unless you demand
excessively high volume levels.

Since the output performance of the RDA-7.1 is
extremely high, it is vital that the maximum ratings for the
input Power of the speaker system be checked. To avoid
damage to the speakers, the Power ratings for the speakers
must be equal to or greater than the output Power rating (4
ohms) of the RDA-7.1 for the corresponding impedance.

Caution

We will not be held responsible for any damage that may
occur to your speaker systems or other components that
result from the use of a speaker system with ratings that are
lower than those of the RDA-7.1.

Phasing your speaker system

If the speakers are not correctly connected, the phasing
may be reversed. The result is an audio output with a
strange feeling and indistinct positioning of the sound
source.

To obtain an accurate bass response, all channels must be
connected in-phase. When the tone of a single note is
output, if the speakers are in-phase, the speakers will
vibrate in unison. If the speakers are properly connected
in-phase, then the positioning (of the instrument, singer,
etc.) becomes clear. And if they are out of phase, then the
positioning becomes unclear for a sound space with a
strange feeling.

If this is the case, first check if the speaker cables are
connected properly. The cables can usually be told apart
by the colors, by different markings, or by colored lines
on the cables. Use these marking to make sure that for
each channel the binding posts (+) on the RDA-7.1 are
connected to the (+) terminals on the speakers and the
binding posts (–) on the RDA-7.1 are connected to the (–)
terminals on the speakers.

• If you want to connect a single speaker, do not

connect it to several terminals.

• Do not connect more than one cable to each speaker

terminal. Doing so may damage the RDA-7.1.

• To prevent damage to circuitry, never short-circuit

the positive (+) and negative (–) speaker wire.

NO!

+ – – +

+ – – +

R

L

R

L

Surround
Back Right
Speaker

Surround
Right
Speaker

Front
Right
Speaker

Center
Speaker

Front
Left
Speaker

Surround
Left
Speaker

Surround
Back Left
Speaker

SPEAKER IMPEDANCE

4 OHMS MIN. PER EACH
SPEAKER TERMINAL

AC INLET

SEVEN CHANNEL AMPLIFIER

MODEL NO.

RDA-7.1

INPUT
SELECT

FUSE

SURROUND BACK
RIGHT

SURROUND
RIGHT

12V TRIGGER

IN

OUT

SURROUND
LEFT

CENTER

FRONT

LEFT

SURROUND BACK
LEFT

FRONT

RIGHT

INPUT
SELECT

INPUT
SELECT

INPUT
SELECT

INPUT
SELECT

INPUT
SELECT

INPUT
SELECT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

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