Cleaning And Maintenance - Niles SI-1230 Installation & Operation Manual

Clipping distortion makes treble sound very harsh and unmusical. When you hear
harsh sounding treble from any good speaker, turn the volume down immediate-
ly! Those harsh sounds are masking some much more powerful high frequency
sound spikes which will quickly damage the tweeter of any loudspeaker.
If you continue to operate the amplifier at "clipping" power levels the protection
circuits will operate when the amplifier overheats. The protection circuits reset
when the amplifier's internal circuitry cools. Reduce the volume to prevent a
reoccurrence. Perpetually overdriving your speakers and amplifier is abuse and
probably voids the manufacturer's warranty of all affected products.

Cleaning and Maintenance

The internal parts of the SI-1230 are electronic and require no maintenance.
Once a year it is appropriate to twist the RCA connectors on each input to remove
any oxidation and improve conductivity.
You can clean only with dry cloth. Do not use any spray-type, abrasive cleaners
on the amplifier.
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