I am going to take a look at the term "power efficiency" which tells you just how much cordless loudspeakers squander so that you can decide on a pair of wireless loudspeakers.
Several problems are caused by wireless loudspeakers that have low power efficiency: Cordless loudspeakers that have small power efficiency are going to squander some power. It's best to make note of the additional energy cost when choosing between a high- and low-efficiency model. The wasted energy is radiated by the cordless loudspeakers as heat. Heat doesn't dissipate well through tiny surfaces. Hence low-efficiency wireless loudspeakers must use heat sinks. These heat sinks consume a reasonable amount of room and make the wireless speakers large and heavy. Further, they raise the cost of the wireless speakers. Wireless loudspeakers that have low efficiency should not be put into small spaces or inside sealed enclosures since they need a great deal of circulation.
Low-efficiency products need more total power to output the identical level of audio power as high-efficiency products. As a result they require a larger power supply which makes the wireless loudspeakers more expensive to construct. An increased amount of heat triggers extra stress on elements. The lifespan of the cordless speakers might be lowered and reliability can be compromised. High-efficiency wireless speakers in contrast do not endure these issues and can be constructed small.
Please note, though, that efficiency is dependent upon how much power the amp provides at a given moment. Each music amplifier will use up a specific level of energy regardless of whether or not it supplies any power to the loudspeaker. For this reason the lower the energy the amp provides, the lower the power efficiency. As a result audio suppliers generally specify the efficiency for the greatest audio power that the amplifier can provide.
To be able to measure the power efficiency, typically a test signal of 1 kHz is fed into the amplifier and a power resistor attached to the amplifier output in order to imitate the loudspeaker load. Next the amplifier output signal is tested and the wattage determined which the amp delivers to the load which is subsequently divided by the total power the amplifier uses. Typically a complete power profile is plotted in order to display the dependency of the efficiency on the output power. Because of this the output power is swept through several values. The efficiency at every value is tested plus a efficiency graph generated.
Even though switching (Class-D) amps possess among the highest power efficiency, they tend to possess larger music distortion than analog music amplifiers and smaller signal-to-noise ratio. Hence you will have to weigh the size of the cordless speakers against the audio fidelity. Nevertheless, the most up-to-date cordless speakers that use switching-mode audio amps, including Class-T amps, provide audio fidelity that comes close to that of low-efficiency analog amps and can be made really small and light.
Several problems are caused by wireless loudspeakers that have low power efficiency: Cordless loudspeakers that have small power efficiency are going to squander some power. It's best to make note of the additional energy cost when choosing between a high- and low-efficiency model. The wasted energy is radiated by the cordless loudspeakers as heat. Heat doesn't dissipate well through tiny surfaces. Hence low-efficiency wireless loudspeakers must use heat sinks. These heat sinks consume a reasonable amount of room and make the wireless speakers large and heavy. Further, they raise the cost of the wireless speakers. Wireless loudspeakers that have low efficiency should not be put into small spaces or inside sealed enclosures since they need a great deal of circulation.
Low-efficiency products need more total power to output the identical level of audio power as high-efficiency products. As a result they require a larger power supply which makes the wireless loudspeakers more expensive to construct. An increased amount of heat triggers extra stress on elements. The lifespan of the cordless speakers might be lowered and reliability can be compromised. High-efficiency wireless speakers in contrast do not endure these issues and can be constructed small.
Please note, though, that efficiency is dependent upon how much power the amp provides at a given moment. Each music amplifier will use up a specific level of energy regardless of whether or not it supplies any power to the loudspeaker. For this reason the lower the energy the amp provides, the lower the power efficiency. As a result audio suppliers generally specify the efficiency for the greatest audio power that the amplifier can provide.
To be able to measure the power efficiency, typically a test signal of 1 kHz is fed into the amplifier and a power resistor attached to the amplifier output in order to imitate the loudspeaker load. Next the amplifier output signal is tested and the wattage determined which the amp delivers to the load which is subsequently divided by the total power the amplifier uses. Typically a complete power profile is plotted in order to display the dependency of the efficiency on the output power. Because of this the output power is swept through several values. The efficiency at every value is tested plus a efficiency graph generated.
Even though switching (Class-D) amps possess among the highest power efficiency, they tend to possess larger music distortion than analog music amplifiers and smaller signal-to-noise ratio. Hence you will have to weigh the size of the cordless speakers against the audio fidelity. Nevertheless, the most up-to-date cordless speakers that use switching-mode audio amps, including Class-T amps, provide audio fidelity that comes close to that of low-efficiency analog amps and can be made really small and light.
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