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77 itu (international telecommuni- cation union), Before making connections – Marantz PM-15S1 User Manual

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4

ENGLISH

Center
speaker

Rear speaker
(Right Surround)

Sub-woofer

Front speaker

(Left)

Rear speaker

(Left Surround)

Front speaker
(Right)

Reference listening

position

approx. 110

°

approx. 110

°

BEFORE MAKING CONNECTIONS

SPEAKER POSITIONING FOR SUPER
AUDIO MULTI-CHANNEL SOUND

In order to enjoy Super Audio CD multi-channel sound with
the best possible acoustics, it is recommended to position
speakers as specified in ITU-R BS.775-1 of the International
Telecommunication Union (ITU). Super Audio CD multi-chan-
nel discs are recorded and mixed so as to achieve the opti-
mum effect with a speaker system laid out as specified in ITU-
R BS.775-1.

• With Super Audio CD multi-channel discs, the music sig-

nals are basically recorded using 5 channels (3 - 6 chan-
nels sometimes), but in some cases, LFE (for subwoofer) is
recorded as a sixth channel. Each disc indicates how many
channels have been recorded on it.

• The basic layout is 3 speakers in the front and 2 in the back

since multi-channel discs usually have 5 channels. The 2
front, 1 center and 2 surround (rear) speakers should be set
in a circle around the listening point as shown below. If us-
ing speakers of differing sizes, adjust volume balance from
the amplifier.

• The location of the subwoofer in the figure is just for ex-

planatory purposes. It can be located anywhere in the room.
For connection and positioning instructions, see the instruc-
tion manual that came with the subwoofer.

7

7

7

7

7 ITU (International Telecommuni-

cation Union)

The ITU is a special organization of the United Nations. It
consists of a number of organs, one of which is the Radio
Broadcasting Section.
ITU-R BS in the recommendation which consists of standards
relating to broadcasting (audio) operations, one of which is
the ITU-R BS.775-1 which governs “multi-channel stereo sound
systems.”

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