Marantz PM-11S1 BI-WIRING Connection, ITU International Telecommuni, Complete BI-AMP Connection

ENGLISH

BEFORE MAKING CONNECTIONS

Here following are explained two types of connections that improve sound quality.The speakers in these explanations have low and mid/high input jacks that support a bi-amp connec- tion. To determine whether or not your speakers support a bi- amp connection, check in the instruction manual that came with your speakers or contact the manufacturer.

BI-WIRING CONNECTION

Abi-wiring connection separately connects the low and mid/ high jacks of the speaker to the amplifier using separate speaker cables. Because separate cables are used for low and mid/high sounds, the return current generated in the low speaker causes little interference with the mid/high speaker. The PM-11S1 and speakers of Connection Example 1 use a bi-wiring connection, therefore also refer to that page for help.

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

CD player, etc.

PM-11S1

Bi-wiring	Speaker system
connection
	Mid/high
	speaker
	Band
	pass filter
	Low
	speaker

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.

7ITU (International Telecommuni-

COMPLETE BI-AMP CONNECTION

Proposed by Marantz, the complete bi-amp connection en- hances the bi-wiring connection. With it, the low and mid/high amplifiers are separate and independent of the preamplifier, therefore interference between low and mid/high sounds is reduced to a minimum. As a result, a wide sound environment can be reproduced. Connection Example 3 connects two PM- 11S1s by FCBS in a complete bi-amp connection, therefore also refer to that page for help.

	Complete bi-amp connection	Speaker system
		Mid/high
CD		speaker
	PM-11S1 bi-	Band
player,
	amp mode	pass filter
etc.
		Low
		speaker

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.”

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

approx. 110° approx. 110°

Reference listening

position

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

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