computer hardware, electronic components, consumer electronics  
Equalizer is part of sound equipment that allows the tone qualities of the sound signal to be changed, usually in two or more bands, such as treble and bass. The name "equalizer" comes from the original application of correcting distorted audio signals to sound closer to the original source. The two basic types are "graphic" equalizers (which allow fixed bands of audio frequencies to be boosted or attenuated), and "parametric" equalizers (which let the operator also vary the center frequency and width of any band that is boosted or attenuated. Audio systems typically use a graphic equalizer which can freely change the frequency characteristic of a reproduced signal to create the desired reproduction sound field characteristic. The graphic equalizer is a popular equalizer apparatus which divides the frequency band of audio signals into a large number of frequency subbands or channels and which can vary the frequency characteristics at the respective channels, and thereby change the frequency characteristics over the entire band as desired. In general, the graphic equalizer includes a combination of a simulated inductor and a bridging amplifier which are constructed of operational amplifiers.

Listings on Audio electronics : Equalizers

  • Ashly Audio, Inc.
    Design and manufacturing of signal processing equipment and power amplification for use in the commercial sound contracting and professional audio markets, products including power amplifiers, equalizers, crossovers, mixers, signal processors, and accessories. USA.
  • Deton Professional Sound System
    Manufacturer of amplifiers (switch mode), mixing consoles, DJ mixers, equalizers crossovers, loudspeakers, and loudspeaker processor, and loudspeaker management system. China.
  • Speck Electronics
    Produces audio mixers, equalizers, and preamps for all segments of professional audio recording and touring. USA.
  • UP & UP Electronics Ltd.
    Manufacturer and exporter of car speaker, subwoofer, speaker box, tweeter, amplifier, equalizer, speaker cable, fuse block and wire harnesses. China.
  • Zhongshan Ligao Electrical Appliance Co., Ltd.
    Manufacturer specializing in car equalizers, automatic voltage regulators, power inverters, DC regulated power supply, voltage converters, rotating antennas, TV antenna booster and wireless digital doorbell. China.

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2009 Electronics manufacturers directory • (Equalizers section) • Site map