Marantz PM-KI Ruby Owners Manual English - Page 15
Connecting a pre-amplifier
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Overview Connections Playback n 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 multichannel 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. 0 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. 0 Each disc indicates how many channels have been recorded on it. 0 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. If using speakers of differing sizes, adjust volume balance from the amplifier. 0 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. Subwoofer Front speaker (Left) Center speaker 60° Front speaker (Right) approx.110° approx.110° Recommended listening position Rear speaker (Left Surround) Rear speaker (Right Surround) . 0 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". ENGLISH Connecting a pre-amplifier If you use a pre-amplifier, connect it as shown below, and then you can use this unit as a power amplifier. Pre-amplifier AUDIO OUT RL RL RL CD LINE-1 LINE-2 RECORDER-1 RECORDER-2 RECORDER-1 RECORDER-2 AUDIO IN SIGNAL GND PHONO AUDIO OUT POWER AMP IN AUDIO IN SPEAKERS IMPEDANCE : 4㹼16Ȑ IN OUT STEREO BI-AMP REMOTE CONTROL AMP MODE IN OUT ID F.C.B.S. AC IN . 1 Turn INPUT SELECTOR on the main unit to select the input source to "PWR AMP". 0 You cannot use the input source switching buttons on the remote control unit to select "PWR AMP". 0 Volume adjustment, muting and adjustments to the volume balance (LEVEL) and sound quality (BASS/TREBLE) are not possible when the input source is "PWR AMP". Adjust these via the pre-amplifier connected to this unit. 0 When the input source is set to "PWR AMP", you cannot use the remote control unit to select the input source. NOTE 0 When the input source is "PWR AMP", the main unit outputs at maximum volume. Check the output level on the input device before playing it and adjust the volume accordingly. Settings Tips Appendix 14