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Care of your speaker
Your new subwoofer/-s does not require any regular maintenance or calibration.
Normal dusting or cleaning of the surface for appearance purposes is all that is
required.
Cabinet and baffle
Avoid using harsh detergents or chemicals when cleaning the cabinet. Abrasives,
detergents, or cleaning solutions may damage the nish on the cabinet. We
recommend using only a damp cloth or automotive grade “quick detailer” designed
for painted surfaces, plastic & metal trim, to clean the cabinet.
Grill
The cloth grill may be carefully cleaned using a vacuum. Animal hair can be
removed using masking tape or similar. Avoid using brushes with stiff bristles that
may damage the grill cloth.
Woofer
DO NOT use liquids, brushes or a vacuum to clean the drive units.
Protection circuitry
Warning
Your new subwoofer is equipped with special protection circuitry to provide maximum
performance with greatest reliability.
The unit is protected against:
- Overheating the transistors.
- Excessive drop in power line voltage.
The rst type of protection circuitry which prevents overheating of the transistors
operates constantly without being audible under most situations. In some extreme
situations (e.g. sustained high output levels in warm environments), the unit
may shut down momentarily. This indicates operation of the thermal or under-
voltage protection circuitry. If this should happen, you should reduce the volume
setting or shut the unit off until normal operating conditions return. You may also
want to plug the unit into a different wall outlet (or circuit), as inadequate power
line voltage & current will be most noticeable under high output conditions.
WARNING: There is no protection circuit for longterm excessive volume use for
some parts in the amplier and speaker driver, in this case critical components may
break due to sheer exhaustion.
Note: If clear audible distortion appears at high volumes, it is recommended to
lower the volume.
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