Class D amplifiers are used for their high efficiency, but they have some
undesirable characteristics, one of these being the residual switching
frequency ripple. Embodiments of the present invention comprise methods
and apparatuses for reducing the switching frequency ripple using a
technique known herein as ripple steering. A secondary output is added to
the amplifier for the purpose of steering the switching ripple away from
the main output thus substantially relieving the main output from a major
artifact of prior art Class D amplifiers.