Niles Audio OS-20 Operation, ness of the bass and the loudness of the sound, Final Adjustments

INSTALLATION	3.	Stand so you are the same distance from each speaker and listen to the rich-
	ness of the bass and the loudness of the sound.
	4.	Turn off the amplifier and reverse the connections on one speaker only.
	5.	Repeat the listening test with the same setting of the volume control. When

the sound has a richer bass and is slightly louder the speakers are working together or “in-phase”.

Final Adjustments

1.After checking that the speaker is in phase and works correctly, angle the speaker for the best sound.

2.Tighten the bracket knobs using only your hands. Use of any power tools may over-tighten the knob, and strip the threads of the insert.

3.Check that the entire installation is safe and secure.

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OPERATION	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 when you are indoors. You also frequently find yourself very far from the speaker. 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 which will quickly damage any fine loudspeaker.

Cleaning

You can clean the OS-20'swith a dampened soft cloth or paper towel. If the speaker is mounted high up on a wall or ceiling, use a broom to gently brush it off. Hosing off the speaker 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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