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If the speakers are positioned too close to each other, the stereo image will not seem realistic; if that distance is
too wide, the image may leave an acoustic hole in the middle. Paying attention to the image during listening tests
and using the adjustment/diagnostic tracks on AMR's test CD will help dictate optimum placement during
experimentation and set-up. A distance between the loudspeakers that is approximately the same as the distance
to the listening position is a good starting point for such experimentation during set-up.
4.3 Distance to the loudspeakers
Because of the excellent integration of frequencies, the LS-77 Reference Class Professional Monitors will
deliver excellent imaging even in near-field applications with small listening distances. The distance to the speakers
ultimately depends upon the room's shape, size and your personal listening taste. Please note that when listening
to the speakers from a long distance, the room must allow the speakers to be positioned with a wider distance
between each other as well.
To maintain a balanced sound integration from the driver arrangement, a 2.0 meter distance is a good starting
point during experimentation. The listening distance to each speaker from the listening position should be identical.
4.4 Distance to back and side walls
When loudspeakers are positioned too close to walls, the sound quality can be restricted. Time-delayed reflections
occur and add colorations, distorting the original music signal. The LS-77 Reference Class Professional Monitor
was developed to be primarily placed free-standing, and therefore reaches its optimum performance when
positioned as clear of any walls as possible. The rear bass port was tuned to integrate perfectly with the drivers,
thus if possible, this port should not be covered by any surfaces or objects. However, the loudspeakers may
effectively be placed into cabinets or enclosures as long as there is a minimal (one-inch) clearance above and
behind the speakers. When placing the Speaker very close to walls it may be necessary to adjust both the high
frequency and low frequency balance of the speakers (see Appendix A - Adjustment of tonal balance).