Operation – Niles Audio Pro770FX User Manual

Page 11

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OPERATION

LISTENING AT HIGHER VOLUMES

Achieving a reasonable volume of sound in a large room requires more ampliﬁer
power than it does in a small room. It is possible to turn the volume up so high that
the ampliﬁer runs out of power. This creates “clipping” distortion, which will make
treble sound very harsh and unmusical. When you hear harsh-sounding treble from
any good loudspeaker, turn the volume down immediately! Those harsh sounds are
masking much more powerful ultra-high-frequency sound spikes, which will quickly
damage any ﬁne loudspeaker. You are much less likely to damage a loudspeaker
driven by a large ampliﬁer because it will be very loud before any clipping distortion
is produced.

CLEANING

Clean the Niles StageFront loudspeaker with a dampened soft cloth or paper towel.

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Figure 7. The Pro870FX
includes Treble, Midrange,
Bipole/Dipole and Diffuse
Sound Level controls.