Almost all home theater users are familiar with the trepidation of 60Hz hum problem that often occur with the speakers. We often observe this noise with other’s sound system and not with our own. Sometimes the problem nips with a little effort but the problem becomes more severe and irritating. Let’s have a look at where that problem comes from.

The most basic reason for the humming sound in home theater speakers is the grounding problem. Commonly three types of ground problems cause humming in a video or audio system. The problem is mainly due to lack of grounds, improper grounding and ground loops. Lousy cables, a defective piece of equipment or electrical attenuation due to some electric motor, lighting dimmer or some magnetic field also play role to produce humming noise in your theater system home.

The first thing to solve this problem is to detect the source that is causing this noise. Disconnect your source and flaunt the equipment from the surround sound processor or receiver. If the noise ceases, reconnect them to the processor or the receiver till the noise returns. When the hum returns, you have found the source of entrance of noise into your theater system home. Keep in mind that you are more prone to this problem if you are using remote connection or long cables for your equipment. Read the rest of this entry »