Marantz SM-1151 manual Speaker Positioning for Super Audio MULTI-CHANNEL Sound

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-channel discs are recorded and mixed so as to achieve the optimum effect with a speaker system laid out as specified in ITU-R BS.775-1.

•With Super Audio CD multi-channel discs, the music signals are basically recorded using 5 channels (3 - 6 channels 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 using speakers of differing sizes, adjust volume balance from the amplifier.

•The location of the subwoofer in the figure is just for explanatory purposes. It can be located anywhere in the room. For connection and positioning instructions, see the instruction manual that came with the subwoofer.

¶ITU (International Telecommunication 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.”

Sub-woofer	Center
	speaker
Front speaker	Front speaker
(Left)	(Right)
	60°

approx. 110° approx. 110°

Reference listening

position

Rear speaker	Rear speaker
(Left Surround)	(Right Surround)

ENGLISH

CONNECTING THE POWER SUPPLY

1.Plug the power cable into AC IN jack on the back panel.

2.Turn on the power switch of the audio unit (amplifier, etc.) that is connected with this unit. Set the selector on the connected unit to this unit.

3.Plug the power cable into an AC outlet.

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