Painting, Automatic tweeter protection, Enclosure cleaning – Cambridge SoundWorks MC650-IW User Manual

Page 10: Warning about excessive amplifier distortion

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The grille and frame of the speakers may be easily painted to match your

décor. It is best to paint the frame and grille separately. Remove the speaker

grille and use the paint mask (the center section from the cutout template)

to protect the drivers and baffle. Paint the grille separately and let it dry

completely before reinstalling it.

Painting

The HD series speakers can be safely used with any receiver rated above

20 watts per channel. There is little advantage in using more power than 100

watts per speaker, but receivers above this power rating can be used so long

as the receiver is not operated at distorted levels.

To protect the tweeter, a self-resetting circuit breaker is incorporated into the

crossover network. If the speaker is overpowered for an extended period,

this circuit breaker will open and the tweeter will be disconnected. When

the volume is reduced or the overload has passed, the circuit will reset and

normal operation will be restored.

Automatic Tweeter Protection

The speaker grilles and exposed rim can be cleaned with a soft, damp cloth

or mild cleaner.

Brush or vacuum the grille panels with a soft brush attachment to your

vacuum cleaner.

Enclosure Cleaning

Operating a receiver (of any power rating) beyond its maximum undistorted

output level creates distortion – added high frequency sound not part of the

musical program. Distortion dramatically increases the internal operating

temperature of a speaker and will eventually cause the speaker’s failure due

to burned or melted internal parts. While Cambridge SoundWorks includes

the most heat-tolerant parts commensurate with good acoustic design, the

speaker’s Limited Warranty against defects in materials or workmanship does

not apply to parts that fail from long-term operation at very high temperatures.

Warning About Excessive

Amplifier Distortion

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