60 relations: AC power, Alternating current, Alternator (automotive), Ambiguity, Amplifier, Amplitude, Audio crossover, Audio electronics, Audio engineer, Audio power, Audio power amplifier, Audio system measurements, Bridge-tied load, Clipping (signal processing), Consumer Electronics Association, Crest factor, Decibel, Deutsches Institut für Normung, Distortion, Dynamic range compression, Eastern Acoustic Works, Electric power, Electrical load, Electrical resistance and conductance, Energy consumption, Equal-loudness contour, Excursion (audio), Federal Trade Commission, Figure of merit, Heat sink, Hertz, Home theater in a box, International Electrotechnical Commission, JBL, Logarithmic scale, Loudness, Loudspeaker, Marketing, Ohm, Oscilloscope, Percentage, Power (physics), Power rating, Professional audio, Programme level, Real versus nominal value (economics), Rohm, Roll-off, Root mean square, Sensitivity (electronics), ..., Shelf stereo, Sine wave, Sound power, Square wave, Studio monitor, Subwoofer, Surround sound, Total harmonic distortion, Voltage, Watt. Expand index (10 more) » « Shrink index
Power in an electric circuit is the rate of energy consumption or production as currents flow through various parts comprising the circuit.
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Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction.
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Alternators are used in modern automobiles to charge the battery and to power the electrical system when its engine is running.
Ambiguity is a type of uncertainty of meaning in which several interpretations are plausible.
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An amplifier, electronic amplifier or (informally) amp is an electronic device that increases the power of a signal.
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The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period).
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Audio crossovers are a class of electronic filter used in audio applications.
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Audio electronics is the implementation of electronic circuit designs to perform conversions of sound/pressure wave signals to electrical signals, or vice versa.
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An audio engineer is concerned with the recording, manipulation, mixing and reproduction of sound.
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Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts.
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An audio power amplifier is an electronic amplifier that amplifies low-power audio signals (signals composed primarily of frequencies between, the human range of hearing) to a level suitable for driving loudspeakers.
Audio system measurements are made for several purposes.
A bridge-tied load (BTL), also known as bridged transformerless and bridged mono, is an output configuration for audio amplifiers, a form of impedance bridging used mainly in professional audio & car applications.
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Clipping is a form of distortion that limits a signal once it exceeds a threshold.
The Consumer Electronics Association (CEA) is a standards and trade organization for the consumer electronics industry in the United States.
Crest factor is a measure of a waveform, such as alternating current or sound, showing the ratio of peak values to the effective value.
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The decibel (dB) is a logarithmic unit that expresses the ratio of two values of a physical quantity, often power or intensity.
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Deutsches Institut für Normung e.V. (DIN; in English, the German Institute for Standardization) is the German national organization for standardization and is the German ISO member body.
Distortion is the alteration of the original shape (or other characteristic) of something, such as an object, image, sound or waveform.
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Dynamic range compression (DRC) or simply compression reduces the volume of loud sounds or amplifies quiet sounds by narrowing or "compressing" an audio signal's dynamic range.
Eastern Acoustic Works (EAW) is an American manufacturer of mainly professional audio reinforcement tools, such as loudspeaker systems and processors.
Electric power is the rate at which electrical energy is transferred by an electric circuit.
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An electrical load is an electrical component or portion of a circuit that consumes electric power.
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The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.
Energy consumption is the consumption of energy or power.
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An equal-loudness contour is a measure of sound pressure (dB SPL), over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones.
Excursion is defined as how far the cone of a speaker linearly travels from its resting position.
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The Federal Trade Commission (FTC) is an independent agency of the United States government, established in 1914 by the Federal Trade Commission Act.
A figure of merit is a quantity used to characterize the performance of a device, system or method, relative to its alternatives.
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A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device into a coolant fluid in motion.
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The hertz (symbol Hz) is the unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
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A "home theater in a box" (HTIB) is an integrated home theater package which "bundles" together a combination DVD or Blu-ray player, a multi-channel amplifier (which includes a surround sound decoder, a radio tuner, and other features), speaker wires, connection cables, a remote control, a set of five or more surround sound speakers (or more rarely, just left and right speakers) and a low-frequency subwoofer.
The International Electrotechnical Commission (in French: Commission électrotechnique internationale) is a non-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known as "electrotechnology".
JBL is an American audio electronics company currently owned by Harman International.
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A logarithmic scale is a nonlinear scale used when there is a large range of quantities.
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Loudness is the characteristic of a sound that is primarily a psychological correlate of physical strength (amplitude).
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A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound.
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Marketing is about communicating the value of a product, service or brand to customers or consumers for the purpose of promoting or selling that product, service, or brand.
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The ohm (symbol: Ω) is the SI derived unit of electrical resistance, named after German physicist Georg Simon Ohm.
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An oscilloscope, previously called an oscillograph, and informally known as a scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that allows observation of constantly varying signal voltages, usually as a two-dimensional plot of one or more signals as a function of time.
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In mathematics, a percentage is a number or ratio expressed as a fraction of 100.
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In physics, power is the rate of doing work.
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In electrical engineering, mechanical engineering and other disciplines, the power rating of equipment is defined as the highest power input allowed to flow through particular equipment.
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Professional audio, also 'pro audio', refers to both an activity and a type of audio equipment.
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Programme level refers to the signal level that an audio source is transmitted or recorded at, and is important in audio if listeners of Compact Discs (CDs), radio and television are to get the best experience, without excessive noise in quiet periods or distortion of loud sounds.
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In economics, a nominal value is an economic value expressed in historical nominal monetary terms.
is a Japanese electronic parts manufacturer based in Kyoto, Japan.
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Roll-off is the steepness of a transmission function with frequency, particularly in electrical network analysis, and most especially in connection with filter circuits in the transition between a passband and a stopband.
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The root mean square (abbreviated RMS or rms), also known as the quadratic mean, in statistics is a statistical measure defined as the square root of the mean of the squares of a sample.
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The sensitivity of an electronic device, such as a communications system receiver, or detection device, such as a PIN diode, is the minimum magnitude of input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria.
A Magnavox 2.0 shelf stereo The term shelf stereo refers to any home stereo system that is small enough for placement on a shelf or other similar location.
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The sine wave or sinusoid is a mathematical curve that describes a smooth repetitive oscillation.
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Sound power or acoustic power is the rate at which sound energy is emitted, reflected, transmitted or received, per unit time.
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A square wave is a non-sinusoidal periodic waveform (which can be represented as an infinite summation of sinusoidal waves), in which the amplitude alternates at a steady frequency between fixed minimum and maximum values, with the same duration at minimum and maximum.
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Studio monitors are loudspeakers specifically designed for audio production applications, such as recording studios, filmmaking, television studios, radio studios and project or home studios, where accurate audio reproduction is crucial, whereas reference monitors are loudspeakers generally used to gauge what a recording will sound like on consumer-grade speakers.
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A subwoofer (or sub) is a woofer, or a complete loudspeaker, which is dedicated to the reproduction of low-pitched audio frequencies known as bass.
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Surround sound is a technique for enriching the sound reproduction quality of an audio source with additional audio channels from speakers that surround the listener (surround channels), providing sound from a 360° radius in the horizontal plane (2D) as opposed to "screen channels" (centre, left, and right) originating only from the listener's forward arc.
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The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency.
Voltage, electric potential difference, electric pressure or electric tension (denoted or) is the difference in electric potential energy between two points per unit electric charge.
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The watt (symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819).
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