I'll take a look at the phrase "power efficiency" that shows you how much cordless loudspeakers waste to guide you pick a pair of cordless speakers.
Since low-efficiency cordless speakers are going to deliver only a small percentage of the energy consumed by the amp as useful audio power, the amplifier requires a larger power source than high-efficiency products leading to more expensive. An increased level of heat brings about further stress on components. The life expectancy of the cordless loudspeakers can be reduced and reliability can be compromised. High-efficiency cordless speakers however tend not to suffer from these problems and may be constructed small.
Low-efficiency versions need more overall energy in order to output the identical amount of audio power as high-efficiency products. Therefore they require a larger power source which makes the cordless loudspeakers costlier to build. An increased level of heat leads to extra stress on components. The life expectancy of the wireless loudspeakers can be decreased and reliability might be affected. High-efficiency wireless speakers however don't endure these issues and may be built very small. The efficiency is shown as a percentage in the wireless speakers data sheet. Various amplifier topologies offer different power efficiencies. Class-A amps are amongst the least efficient and Class-D the most efficient. Normal power efficiencies range between 25% to 98%. From the efficiency percentage it is possible to compute how much energy the amp is going to waste. An amplifier having a 50% power efficiency is going to waste half of the used energy. An amplifier that has 90% efficiency is going to waste 10%.
Take note, though, that efficiency depends upon how much energy the amp provides at a given moment. Amplifiers possess larger efficiency while providing higher output power than while working at small power because of the fixed energy that they consume regardless of the output power. The efficiency figure in the amplifier data sheet is usually given for the highest amp output power.
To measure the power efficiency, typically a test signal of 1 kHz is fed into the amp and a power resistor connected to the amplifier output in order to imitate the speaker load. Next the amp output signal is tested and the wattage calculated which the amplifier provides to the load which is then divided by the overall energy the amp consumes. To obtain a complete power efficiency profile, the audio power of the amp is swept between different values. At each value the efficiency is calculated and then plotted onto a chart.
When choosing a set of cordless speakers you have got to weigh efficiency versus fidelity as cordless loudspeakers which utilize low-efficiency analog amplifiers frequently offer the largest audio fidelity while digital models will have bigger distortion. A number of newer wireless loudspeakers, like products that have Class-T amplifiers, can reduce audio distortion to amounts near to those of types using analog music amps and also are able to accomplish high signal-to-noise ratio. Choosing one of these cordless speakers will offer great efficiency and at the same time high audio fidelity.
Since low-efficiency cordless speakers are going to deliver only a small percentage of the energy consumed by the amp as useful audio power, the amplifier requires a larger power source than high-efficiency products leading to more expensive. An increased level of heat brings about further stress on components. The life expectancy of the cordless loudspeakers can be reduced and reliability can be compromised. High-efficiency cordless speakers however tend not to suffer from these problems and may be constructed small.
Low-efficiency versions need more overall energy in order to output the identical amount of audio power as high-efficiency products. Therefore they require a larger power source which makes the cordless loudspeakers costlier to build. An increased level of heat leads to extra stress on components. The life expectancy of the wireless loudspeakers can be decreased and reliability might be affected. High-efficiency wireless speakers however don't endure these issues and may be built very small. The efficiency is shown as a percentage in the wireless speakers data sheet. Various amplifier topologies offer different power efficiencies. Class-A amps are amongst the least efficient and Class-D the most efficient. Normal power efficiencies range between 25% to 98%. From the efficiency percentage it is possible to compute how much energy the amp is going to waste. An amplifier having a 50% power efficiency is going to waste half of the used energy. An amplifier that has 90% efficiency is going to waste 10%.
Take note, though, that efficiency depends upon how much energy the amp provides at a given moment. Amplifiers possess larger efficiency while providing higher output power than while working at small power because of the fixed energy that they consume regardless of the output power. The efficiency figure in the amplifier data sheet is usually given for the highest amp output power.
To measure the power efficiency, typically a test signal of 1 kHz is fed into the amp and a power resistor connected to the amplifier output in order to imitate the speaker load. Next the amp output signal is tested and the wattage calculated which the amplifier provides to the load which is then divided by the overall energy the amp consumes. To obtain a complete power efficiency profile, the audio power of the amp is swept between different values. At each value the efficiency is calculated and then plotted onto a chart.
When choosing a set of cordless speakers you have got to weigh efficiency versus fidelity as cordless loudspeakers which utilize low-efficiency analog amplifiers frequently offer the largest audio fidelity while digital models will have bigger distortion. A number of newer wireless loudspeakers, like products that have Class-T amplifiers, can reduce audio distortion to amounts near to those of types using analog music amps and also are able to accomplish high signal-to-noise ratio. Choosing one of these cordless speakers will offer great efficiency and at the same time high audio fidelity.
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