When you are about to get brand new wireless speakers, you may be concerned about how efficiently your cordless speakers work. I will demonstrate precisely what the phrase "power efficiency" means plus why you need to take a closer look at this number in your selection of brand new cordless speakers.
A relatively large amount of energy is dissipated as heat should you get a set of low-efficiency cordless loudspeakers. This can produce several problems: Low-efficiency cordless speakers will squander a certain amount of power as heat and therefore are costlier to operate when compared with high-efficiency models due to their larger power consumption. To protect the circuit elements, low-efficiency cordless loudspeakers need to find solutions to get rid of the heat that is created. Normally additional components need to be included to radiate adequate energy and maintain the ideal working temperature. These elements usually are heat sinks as well as fans. These heat sinks consume a fair amount of room and make the wireless speakers bulky and heavy. Further more, they raise the expense of the cordless speakers. Low-efficiency cordless speakers further need a great deal of circulation around the wireless loudspeakers. Therefore they cannot be put in close spaces or within air-tight enclosures.
Given that low-efficiency cordless loudspeakers will deliver just a small fraction of the power consumed by the amp as usable audio energy, the amplifier requires a bigger power source than high-efficiency models leading to higher cost. An elevated level of heat triggers extra stress on elements. The life expectancy of the cordless loudspeakers could be reduced and reliability might be compromised. High-efficiency wireless speakers in contrast tend not to endure these issues and can be designed small.
What's less known about efficiency is the fact that this value isn't fixed. The fact is it varies depending on how much power the amp offers. Therefore at times you will find efficiency figures for several energy levels in the data sheet. Given that each amplifier is going to need a particular amount of energy, regardless of the amount of power the amp delivers to the speakers, the amplifier power efficiency is higher the more energy the amplifier provides and is normally specified for the maximum power the amplifier can handle.
Please note, however, that efficiency depends on just how much energy the amplifier delivers at a given moment. Amps possess greater efficiency when delivering greater output power than while operating at low power due to the fixed energy that they use up regardless of the output power. The efficiency figure in the amp data sheet is typically given for the greatest amplifier output power. In order to determine the efficiency, the audio energy that is used by a power resistor which is connected to the amp is divided by the overall energy the amplifier consumes whilst being fed a constant sine wave signal. To get a full efficiency profile, the audio power of the amplifier is swept between different values. At every value the efficiency is calculated and plotted onto a graph.
While switching (Class-D) amps have amongst the largest efficiency, they tend to have larger music distortion than analog music amplifiers and lower signal-to-noise ratio. Thus you are going to need to weigh the dimensions of the cordless loudspeakers against the sound fidelity. However, the most up-to-date cordless speakers that use switching-mode audio amplifiers, similar to Class-T amplifiers, offer audio fidelity that comes close to that of low-efficiency analog amps and can be created ultra small and lightweight.
A relatively large amount of energy is dissipated as heat should you get a set of low-efficiency cordless loudspeakers. This can produce several problems: Low-efficiency cordless speakers will squander a certain amount of power as heat and therefore are costlier to operate when compared with high-efficiency models due to their larger power consumption. To protect the circuit elements, low-efficiency cordless loudspeakers need to find solutions to get rid of the heat that is created. Normally additional components need to be included to radiate adequate energy and maintain the ideal working temperature. These elements usually are heat sinks as well as fans. These heat sinks consume a fair amount of room and make the wireless speakers bulky and heavy. Further more, they raise the expense of the cordless speakers. Low-efficiency cordless speakers further need a great deal of circulation around the wireless loudspeakers. Therefore they cannot be put in close spaces or within air-tight enclosures.
Given that low-efficiency cordless loudspeakers will deliver just a small fraction of the power consumed by the amp as usable audio energy, the amplifier requires a bigger power source than high-efficiency models leading to higher cost. An elevated level of heat triggers extra stress on elements. The life expectancy of the cordless loudspeakers could be reduced and reliability might be compromised. High-efficiency wireless speakers in contrast tend not to endure these issues and can be designed small.
What's less known about efficiency is the fact that this value isn't fixed. The fact is it varies depending on how much power the amp offers. Therefore at times you will find efficiency figures for several energy levels in the data sheet. Given that each amplifier is going to need a particular amount of energy, regardless of the amount of power the amp delivers to the speakers, the amplifier power efficiency is higher the more energy the amplifier provides and is normally specified for the maximum power the amplifier can handle.
Please note, however, that efficiency depends on just how much energy the amplifier delivers at a given moment. Amps possess greater efficiency when delivering greater output power than while operating at low power due to the fixed energy that they use up regardless of the output power. The efficiency figure in the amp data sheet is typically given for the greatest amplifier output power. In order to determine the efficiency, the audio energy that is used by a power resistor which is connected to the amp is divided by the overall energy the amplifier consumes whilst being fed a constant sine wave signal. To get a full efficiency profile, the audio power of the amplifier is swept between different values. At every value the efficiency is calculated and plotted onto a graph.
While switching (Class-D) amps have amongst the largest efficiency, they tend to have larger music distortion than analog music amplifiers and lower signal-to-noise ratio. Thus you are going to need to weigh the dimensions of the cordless loudspeakers against the sound fidelity. However, the most up-to-date cordless speakers that use switching-mode audio amplifiers, similar to Class-T amplifiers, offer audio fidelity that comes close to that of low-efficiency analog amps and can be created ultra small and lightweight.
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