of an amplifier's ability to control the motion of a speaker at the stop
of transient impulses. Technically defined as the ratio of the load impedance
to the amplifier's output impedance. The high output impedance of the amplifier
enables it to absorb the back EMF generated by the voice coil. A damping
factor greater than 10 is usually adequate, however amplifiers with damping
factors up to several thousand are available. Note that damping factor varies
with frequency as the load's impedance changes.