Mordaunt-Short 500 Series THX Taking Care Of Your Loudspeakers, Driver Precautions, Grilles

TAKING CARE OF YOUR LOUDSPEAKERS

9.Should more than 6dB of cut be required (i.e. one measurement is more than 12dB above the average of the others) the notch filter can be set to the –12dB setting and the process repeated.

Driver Precautions

By far the most common cause of loudspeaker failure, and one that is understandably not covered by guarantee, is damage to the voice coils caused by amplifier overload. This is generally due to the common belief that if a speaker is rated at more than the amplifier’s output rating, there is no chance of blowing that speaker.............

This is not the case!

A relatively small amplifier (i.e. 20 watts) can damage speakers like these by “clipping” the signal, a symptom identified by lack of detail in music and distortion. If this occurs TURN IT DOWN! If you don’t want to blow up your speakers but want louder sound, please purchase a more powerful amplifier.

Grilles

Mordaunt-Short loudspeakers have been designed for optimum listening with grilles in place. The best overall performance will be had with the tweeter protection grilles removed (if fitted, they are held in place magnetically) and with the main grilles in place. Take care when removing the tweeter grilles as the tweeter domes are very sensitive.

Cabinet Care

Cabinets should be dusted and lightly polished as required. Do not use solvent based cleaners as they may damage the cabinet surface. Do not expose the cabinets to strong, direct sunlight, high temperatures, high humidity or allow them to become wet.

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