Niles Audio OS5.3SI - Manual (Page 9)

Figure 3. Wiring directly from a
receiver or amplifier
Figure 4. Incorporating a
volume control
NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 305-238-4373
RECOMMENDED AMPLIFIER POWER
For optimum performance, we recommend amplifiers with the following power ratings:
• For the OS 5.3Si loudspeaker, 5 to 100 W per channel
• For the OS 6.3Si loudspeaker, 5 to 125 W per channel
Ironically, most speakers are not damaged by large amplifiers but by small amplifiers. If you
are playing at high volume, a small amplifier will run out of power very quickly. When an amplifier
runs out of power it creates damaging “clipping” distortion. A large amplifier will play at the
same volume without distorting. See
OPERATION on page 17 for more information about
clipping distortion.
PLACING THE LOUDSPEAKER FOR THE BEST SOUND QUALITY
Traditionally, when using a pair of stereo loudspeakers, the listener will be positioned directly
between the left and right loudspeakers to achieve optimum stereo sound. However, in some
applications this is not possible, especially when a large area of coverage is required. It was
for these types of applications that the OS “Si” loudspeaker was created. With its ultra-wide
dispersion pattern, a single OS “Si” loudspeaker is able to project quality summed-stereo sound
over a larger area. No matter where you are—you are always in the sweet spot. (See
Figure 5
on the next page).
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