One of the recent discoveries in the audio industry is the importance of improving the signal ground on your audio equipment. Refresher course: there are two types of grounds in your audio equipment: earth and signal. Earth ground is the third round connector on your plug that keeps your electrical device safe in case of a short or a fault within the component. Signal ground is the plane designed by product designers to eliminate stray voltage within the circuit. Earth ground is a no-brainer. The signal ground needs to find an easy path out of the equipment so it does not add noise to the audio signal. There are various ways of getting that signal noise out. Power conditioners claim to enhance the signal plane by tying it to the earth's ground. Point solutions plug a small device directly into a component, providing it with a better pathway for noise. Some products aim to eliminate noise at all frequencies, while others concentrate on a limited basis. The choice of the right product depends on your specific requirements.