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  2. Earth Sound Research - Wikipedia

    en.wikipedia.org/wiki/Earth_Sound_Research

    Earth Sound Research specialized in electric bass and guitar amplifiers in the 1970s. [3] They also manufactured PA mixers, power amps, [4] and stand alone solid state reverb units. The company also manufactured ESR brand distortion pedals such as the Graphic Fuzz which was based somewhat on a Craig Anderton fuzz and volume pedal. [1]

  3. Amplifier modeling - Wikipedia

    en.wikipedia.org/wiki/Amplifier_modeling

    The Roland Micro Cube, left, a small and portable digital modeling amplifier. Digital amp modelers Standalone modeling devices such as the Line 6 POD and Fractal Axe-FX digitize the input signal and use a DSP, a dedicated microprocessor, to process the signal with digital computation, attempting to achieve the sound of expensive professional amplifiers in a much less costly and more compact ...

  4. Audison - Wikipedia

    en.wikipedia.org/wiki/Audison

    Audison is one of the brands of the Italian company Elettromedia s.r.l., a manufacturer of car audio products. The company was founded in 1979, but Audison name (born from Latin words Audio and Sonus) was registered in 1984. Currently Audison has different kinds of mobile audio products: amplifiers, audio processors, speakers and subwoofers.

  5. Linear amplifier - Wikipedia

    en.wikipedia.org/wiki/Linear_amplifier

    Class-D amplifiers use switching technology to achieve high efficiency, often exceeding 90%, thereby requiring less power to operate, compared with that of other amplifier types. Because of the digital train used to drive the amplifier, many do not consider the Class-D amplifier a linear amplifier, yet many audio and radio manufacturers have ...

  6. Parasitic oscillation - Wikipedia

    en.wikipedia.org/wiki/Parasitic_oscillation

    The problem occurs notably in RF, [1] audio, and other electronic amplifiers [2] as well as in digital signal processing. [3] It is one of the fundamental issues addressed by control theory. [4] [5] [6] Parasitic oscillation is undesirable for several reasons.

  7. Sound Blaster 16 - Wikipedia

    en.wikipedia.org/wiki/Sound_Blaster_16

    The ASP was a SGS-Thomson ST18932 DSP core with 16K of program RAM and 8K of data RAM. [ 1 ] [ 2 ] [ 3 ] The Sound Blaster 16 also featured the then widely used TEA2025 amplifier IC ( integrated circuit ) which, in the configuration Creative had chosen, would allow approximately 700 milliwatts per channel when used with a standard pair of ...

  8. Intermodulation - Wikipedia

    en.wikipedia.org/wiki/Intermodulation

    The output power of the two carriers (M1 and M2) increases by about 1 dB in each frame, while the 3rd order intermodulation products (D3 and D4) grow by 3 dB in each frame. Higher-order intermodulation products (5th order, 7th order, 9th order) are visible at very high input power levels as the amplifier is driven past saturation.

  9. Motorboating (electronics) - Wikipedia

    en.wikipedia.org/wiki/Motorboating_(electronics)

    In electronics, motorboating is a type of low frequency parasitic oscillation (unwanted cyclic variation of the output voltage) that sometimes occurs in audio and radio equipment and often manifests itself as a sound similar to an idling motorboat engine, a "put-put-put", in audio output from speakers or earphones.