Marantz PM-11S1 PM-11S1 User Manual - Page 8

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 connection. To determine whether or not your speakers support a biamp connection, check in the instruction manual that came with your speakers or contact the manufacturer. BI-WIRING CONNECTION A bi-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. CD player, etc. PM-11S1 Bi-wiring Speaker system connection Mid/high speaker Band pass filter Low speaker COMPLETE BI-AMP CONNECTION Proposed by Marantz, the complete bi-amp connection enhances 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 PM11S1s by FCBS in a complete bi-amp connection, therefore also refer to that page for help. Complete bi-amp connection Speaker system CD player, etc. PM-11S1 biamp mode Mid/high speaker Band pass filter Low speaker 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 ITUR 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. 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." Sub-woofer Front speaker (Left) Center speaker Front speaker (Right) approx. 110° approx. 110° Reference listening position Rear speaker (Left Surround) Rear speaker (Right Surround) 4