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Bi-amping is the use of two channels of amplification to power each loudspeaker within an audio system. Tri-amping is the practice of connecting three channels of amplification to a loudspeaker unit: one to power the bass driver , one to power the mid-range and the third to power the treble driver .
Bi-wiring is a means of connecting a loudspeaker to an audio amplifier, primarily used in hi-fi systems. Normally, there is one pair of connectors on a loudspeaker and a single cable (two conductors) runs from the amplifier output to the terminals at the loudspeaker housing.
Bi-amping and tri-amping of a sound reinforcement system with the aid of a DLMS results in more efficient use of amplifier power by sending each amplifier only the frequencies appropriate for its respective loudspeaker and eliminating losses associated with passive crossover circuits.
Any technique that uses crossover filtering followed by amplification is commonly known as bi-amping, tri-amping, quad-amping, and so on, depending on the minimum number of amplifier channels. [ 32 ] Some loudspeaker designs use a combination of passive and active crossover filtering, such as a passive crossover between the mid- and high ...
As shown in the Damping factor article, references and esp. the discussion, doing the split of the frequencies in the lower power line-level signal path is thought to be "better" and more predictable than using high power inductors, caps, and resistors in the amplifier-to-speaker(s) connection.
Speakon panel connectors (center) provided on a professional PA power amplifier by QSC with a power output of 2 x 700 Watt (4 Ohm) The Speakon (stylized speakON ) is a trademarked name for an electrical connector , [ 2 ] originally manufactured by Neutrik , mostly used in professional audio systems for connecting loudspeakers to amplifiers .
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Amended (no. 3) July 2024, introducing the concept of bi-directional vs. uni-directional protective devices in response to issue of how existing devices were being used for prosumer power generation circuits.