Installation
Fastening
Pin
Gromment
Figure 14
Optional Feet
16.Two sets of optional feet (eight Tiptoes and eight Glides) are supplied with the XRT28 Loudspeaker System. Refer to figure 15. To
prevent crushing carpet use the Tiptoe Spikes; to protect
threaded shaft and locking nut | Tiptoes | Glides |
that screw into the tapped | Figure 15 | |
holes in the bottom of the | ||
| ||
XRT28’s base rails. The feet can be independently ad- | ||
justed to compensate for uneven flooring. | ||
17. Stand the Column upright. |
| |
Room Placement using the Column on a Base
Loudspeaker placement in a room can greatly affect performance. The XRT28 Loudspeaker is designed for both Music and Home Theater Systems. The optimal method for selecting speaker locations includes the use of a real time spectrum analyzer operated by an experienced system installer. An uncompromising installation would take into consideration the floor, wall and ceiling coverings, the type and placement of furniture and can even include the architectural design of the room and its construction materials. In those instances where placement in the room is fixed an enviromental equalizer may be needed to restore proper musical balance.
Placement near a wall, corner, floor, ceiling or any in- tersecting surfaces will reinforce or diminish some bass frequencies. The bass frequencies that are altered by place- ment in a particular location is dependant on the dimen- sions of the room. If professional measurement equipment is not available, test the various Loudspeaker locations by playing music with continuous bass, setting up the speak- ers and listening to them from the main listening spot. Move the Loudspeakers to an alternate location and repeat the listening, paying attention to how the bass qualities and response levels change. Do not assume the loudest bass is
best; rather listen for booming (a lack of articulation), as well as a balance over the whole spectrum, to assure the bass will not drown out the other parts of the music. Ex- periment with various Loudspeaker positions until the lo- cation that sound best is found.
The XRT28 Column’s 
Smooth Frequency Re- 
sponse may be altered by large object(s) located in
sound waves path or by
locating the column too close to a side wall. There should be an unob-
structed area in front of
the column of at least 30 
degrees either side from 
the center axis for the
best performance. Refer to figure 16.
Locating Loudspeakers for use in Home Theater
In a Home Theater application, the placement of Left and Right Front
Loudspeakers can be
limited by such considerations as the size and location of the video
monitor. The locating suggestions in the “for use in a Music System”
section below can still be helpful as a starting
place. Refer to figure 17.
Locating Loudspeakers for use in a Music System When used in a Music System the distance between the Loudspeakers and the
listener to the
Loudspeakers should form an equilaterial or
acute isosceles triangle. If the speakers are too far
apart relative to the listener, some imaging can be lost. Refer to figure 18.
Figure 18
9