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NILES AUDIO CORPORATION – 1-800-BUY-HIFI
1. Stand halfway between the loudspeakers.
2. Play some music with the amplifier or receiver set to Mono.
3. Listen to the richness of the bass and the loudness of the sound.
4. Turn off the amplifier and reverse the connections on one amplifier channel only.
5. Repeat the listening test with the same volume control setting. When the sound
has a richer bass and is slightly louder, the loudspeakers are working together or
“in-phase.”
OPERATION
LISTENING AT HIGHER VOLUMES
Outdoors there are no walls to reflect and contain the sound. It requires more power to achieve a
reasonable volume of sound outside than it does indoors. You also frequently find yourself very far
from the loudspeakers. 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 loudspeaker indoors or outdoors, turn the volume down immediately! Those
harsh sounds are masking some much more powerful ultra-high-frequency sound spikes which
will quickly damage any fine loudspeaker.
CLEANING
Clean the OS loudspeakers with a dampened soft cloth or paper towel. If the loudspeaker is
mounted high up on a wall or ceiling, use a broom to gently brush it off. Hosing off the loudspeaker
is not recommended, as the tweeter is a precise mechanism which might be damaged by a
high-pressure stream of water.
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DS00425BCN_OS_3.indd 19 6/24/05 4:13:26 PM
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