American Acoustic Development M Series - Manual (Page 2)

Do not attempt to clean the speakers with chemical solvents as this might damage
the finish. Use a clean, dry cloth.
To clean subwoofer, unplug the power cord from the outlet first. Use a damp cloth
only to wipe dust of the surface. Do not use any liquid cleaners.
The subwoofer should be placed at a ventilated, dry and cool location, away from
any heat sources such as radiators or amplifiers.
Do not obstruct the subwoofer amplifier from ventilation. It is necessary that air can
flow around the finned heat sink on the rear panel of the amplifier.
Do not use the subwoofer near water or expose them to rain or moisture.
Always unplug the power cord first when making connections. Switch power on only
after you check and make sure all connections are made correctly.
Unplug the power cord from the outlet when you are not going to use the subwoofer
for a long period of time.
Do not attempt to modify or fix the speakers. Contact qualified service
personnel when any service is needed. The cabinet should never be opened for any
reasons.
The speaker is constructed with the majority of the
weight located in its upper portion, and is thus
susceptible to falling over if proper care is not taken to
insure its stability. If the speaker falls over, it may
damage the speaker or be the cause of injury (or even
death) to persons and/or damage to personal property.
For safe and proper use of the speaker:
Position the speaker in a location that is solid, level, smooth, and low (with respect
to the floor).
Do not push or apply pressure to the side of the speaker when moving, or lean
objects against the side of the speaker.
Do not sit on or set objects on top of the speaker.
Vibrations or jolts associated with earthquakes and other phenomena or activities may
cause the speaker to fall over. For safety reasons, using commercially available products
that increase stability in the speaker is recommended (metal fittings or chains, etc.).