Technical information

unacceptable. Digital sources such as CDs are immune to wow because they lock
their playback speed to a solid-state timing device.
XLR A professional audio connection standard in which the signal pins are not
connected to the shielding earth. This allows them to carry balanced audio
signals. Most commonly seen in three pin versions (for mono) although there are
also five pin (stereo) versions.
Zero cross distortion See cross-over distortion.