Linjatasojärjestelmän

Linjatasojärjestelmän, which translates to "line level system" in English, refers to a standard electrical voltage level used in audio signal transmission. Specifically, it designates a relatively high signal voltage, typically around +4 dBu (decibels relative to unloaded zero level), though it can also be specified as -10 dBV in some consumer-grade equipment. This higher voltage compared to microphone-level signals allows for longer cable runs and reduces the susceptibility to noise and interference.

In professional audio environments, such as recording studios and live sound reinforcement, linjatasojärjestelmän is the common standard for connecting various pieces of equipment. This includes connecting mixers to processors, processors to amplifiers, and amplifiers to loudspeakers. The use of balanced connections, often employing XLR or TRS connectors, further enhances the signal integrity by canceling out common-mode noise picked up by the cables.

The precise voltage associated with line level is a convention that facilitates interoperability between different audio devices. While +4 dBu is prevalent in professional gear, older or less expensive equipment might use -10 dBV, which is a lower voltage. Understanding these distinctions is crucial for proper gain staging and achieving optimal sound quality when setting up an audio system. Using the correct signal level between devices prevents clipping and maintains a healthy signal-to-noise ratio.