General Features
•
Polypropylene cone woofer
•
Butyl rubber surround
•
1" pivoting soft dome tweeter
•
Detachable screw terminal strips
Specifications
Model 50-10510
Model 50-10511
Woofer Size
6½"
8"
Power Capacity
40W/60W RMS/peak
55W/80W RMS/peak
Frequency Response
65Hz ~ 20KHz
60Hz ~ 20KHz
Nominal Impedance
8
Ω
8
Ω
SPL
88dB W/M
89dB W/M
Dimensions
Overall Frame Diameter
9.375" (dia.)
11.5" (dia.)
Required Cutout
8.10" (dia.)
10.0" (dia.)
Mounting Depth
5"
5.25"
Speaker Placement
Careful consideration should be made when determining the desired location of the speaker pair. As these are referred to
as ceiling speakers, this is the intended mounting location. However, there is no electronic or physical reason these
cannot be mounted in other locations. Note that careful consideration should be given to appearance in these situations.
Following are some typical guidelines that should be followed when determining the optimum placement for speakers in a
given environment. Note that these are guidelines. Aesthetics, light fixtures, ceiling fans and similar items will also require
consideration, and should be considered equally important to the recommendations below.
Whole House Audio Listening
Given a typical rectangular room, the ideal ceiling placement for these speakers is depicted below. When installing a
single pair of speakers in a given room, bisect the room in both the long and short dimensions. This will provide an exact
center point. Then along the long length, bisect each half. Where each of these bisected lines cross the center point, is
the optimum speaker location.
When installing four speakers, bisect each short half one additional time. As depicted below, the room will be divided into
16 equal rectangles. Place the speakers as shown.
Since these speakers are mounted in a 15° offset frame, it is also recommended that the location be shifted from the
center line displayed above. With an 8' ceiling, the shift is 8" from center. With a 10' ceiling, the shift is 14.5" from center,
and with a 12' ceiling, the shift is 19" from the center line of the ceiling.
It is important to note that more speakers in a given listening area do not necessarily equate to higher sound levels. With
more speakers, the desired listening level for a given area is attained with lower output from each speaker. This creates a
much more pleasant listening environment as the sound source can be uniformly heard through the entire room,
regardless of location and with less interference with sounds such as conversation.
Home Theater Audio Listening
In home theater environments, speakers should be placed in the ceiling directly above what is considered ideal for
bookshelf speakers in the same environment. As these speakers are all mounted in a 15° offset frame, it is important to
make sure the angle of the speaker is towards the listener when installed.
