Niles RS6Si Installation & Operating Manual page 20

Listening at Higher Volumes
Outdoors there are no walls to reflect and contain the sound and typically
the ambient noise level is louder. This causes the system to require more power
to achieve a reasonable listening level than it does when you are listening indoors.
In addition, you are frequently further away from the loudspeaker. It is possible
to turn the volume so high that the amplifier runs out of power. This creates
"clipping" distortion.
Clipping distortion makes treble sound very harsh and unmusical. When you hear
harsh sounding treble from any good speaker indoors or outdoors, turn the volume
down immediately! Those harsh sounds are masking some much more powerful
ultra-high-frequency sound spikes that will quickly damage any fine loudspeaker.
Cleaning
The rock loudspeaker should not require cleaning. The formation of dirt and
molds on the cabinet will add to the natural look of the loudspeaker. However, if
you desire to clean the loudspeaker you can clean the RS6Si with a dampened
soft cloth or a paper towel. Hosing the loudspeaker off with a garden hose or high
pressure cleaner is not recommended, the drivers, especially the tweeter, can be
damaged by a high-pressure stream of water. The use of chemical cleaners should
also be avoided.
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