I'm going to have a look at the expression "power efficiency" which shows you how much cordless loudspeakers waste to guide you pick a pair of cordless speakers. A fairly high amount of energy is radiated as heat should you get a pair of low-efficiency wireless speakers. This can trigger a few problems: Low-efficiency cordless loudspeakers will waste some energy as heat and so are costlier to run than high-efficiency models because of their higher energy usage. Heat doesn't dissipate effectively from tiny surfaces. For this reason low-efficiency cordless speakers must use heat sinks. These heat sinks consume a fair amount of space and make the wireless loudspeakers bulky and heavy. Further, they raise the expense of the wireless loudspeakers. Low-efficiency cordless speakers further require a good amount of circulation around the cordless loudspeakers. So they cannot be put in close spaces or within air-tight enclosures.
A relatively large amount of energy is dissipated as heat when you get a set of low-efficiency cordless speakers. This may contribute to a number of problems: Low-efficiency wireless speakers will squander some power as heat and so are more expensive to use in comparison with high-efficiency types because of their greater power utilization. To protect the circuit components, low-efficiency cordless speakers must find methods to get rid of the heat that is produced. Normally extra components have to be included in order to radiate adequate energy and sustain the optimum working temperature. These elements are usually heat sinks as well as fans. Heat sinks and fans demand space and are expensive. The wireless speakers thus is going to become pretty big and costly. In addition heat fans are going to produce operating noise. Cordless speakers with low efficiency should not be put in small spaces or inside sealed enclosures since they demand a great deal of circulation.
Given that low-efficiency wireless loudspeakers will deliver just a small percentage of the power consumed by the amplifier as usable audio power, the amp needs a larger power source than high-efficiency types leading to more expensive. Further more, the thermal stress on the circuit board elements as well as amp materials is more severe and could decrease the dependability.
When looking for a pair of cordless speakers, you can find the efficiency in the data sheet. This value is usually shown as a percentage. Various amplifier architectures deliver different power efficiencies. Class-A amps are amongst the least efficient and Class-D the most efficient. Standard power efficiencies vary from 25% to 98%. Having an amp with an efficiency of 90% as an example shows that 10% of the energy that is utilized is wasted while 90% can be audio power.
Having said that, there are several things to note about efficiency. For starters, this value is dependent on the level of energy that the amplifier is delivering. Amplifiers have larger efficiency while providing higher output power than while operating at small power due to the fixed power that they use up regardless of the output power. The efficiency value in the amplifier data sheet is normally given for the maximum amplifier output power. In order to figure out the power efficiency, the audio power that is consumed by a power resistor that is attached to the amplifier is divided by the total power the amp utilizes whilst being fed a constant sine wave signal. Given that the efficiency depends upon the audio power, typically the output power is swept and an efficiency graph produced which will display the amplifier efficiency for each level of output power.
While picking a pair of cordless loudspeakers you need to weigh efficiency versus fidelity considering cordless speakers which use low-efficiency analog amplifiers frequently offer the highest audio fidelity while digital models are going to have larger distortion. On the other hand, the newest wireless speakers that use switching-mode audio amps, including Class-T amplifiers, provide music fidelity that comes close to that of low-efficiency analog amps and can be produced ultra small and light.
A relatively large amount of energy is dissipated as heat when you get a set of low-efficiency cordless speakers. This may contribute to a number of problems: Low-efficiency wireless speakers will squander some power as heat and so are more expensive to use in comparison with high-efficiency types because of their greater power utilization. To protect the circuit components, low-efficiency cordless speakers must find methods to get rid of the heat that is produced. Normally extra components have to be included in order to radiate adequate energy and sustain the optimum working temperature. These elements are usually heat sinks as well as fans. Heat sinks and fans demand space and are expensive. The wireless speakers thus is going to become pretty big and costly. In addition heat fans are going to produce operating noise. Cordless speakers with low efficiency should not be put in small spaces or inside sealed enclosures since they demand a great deal of circulation.
Given that low-efficiency wireless loudspeakers will deliver just a small percentage of the power consumed by the amplifier as usable audio power, the amp needs a larger power source than high-efficiency types leading to more expensive. Further more, the thermal stress on the circuit board elements as well as amp materials is more severe and could decrease the dependability.
When looking for a pair of cordless speakers, you can find the efficiency in the data sheet. This value is usually shown as a percentage. Various amplifier architectures deliver different power efficiencies. Class-A amps are amongst the least efficient and Class-D the most efficient. Standard power efficiencies vary from 25% to 98%. Having an amp with an efficiency of 90% as an example shows that 10% of the energy that is utilized is wasted while 90% can be audio power.
Having said that, there are several things to note about efficiency. For starters, this value is dependent on the level of energy that the amplifier is delivering. Amplifiers have larger efficiency while providing higher output power than while operating at small power due to the fixed power that they use up regardless of the output power. The efficiency value in the amplifier data sheet is normally given for the maximum amplifier output power. In order to figure out the power efficiency, the audio power that is consumed by a power resistor that is attached to the amplifier is divided by the total power the amp utilizes whilst being fed a constant sine wave signal. Given that the efficiency depends upon the audio power, typically the output power is swept and an efficiency graph produced which will display the amplifier efficiency for each level of output power.
While picking a pair of cordless loudspeakers you need to weigh efficiency versus fidelity considering cordless speakers which use low-efficiency analog amplifiers frequently offer the highest audio fidelity while digital models are going to have larger distortion. On the other hand, the newest wireless speakers that use switching-mode audio amps, including Class-T amplifiers, provide music fidelity that comes close to that of low-efficiency analog amps and can be produced ultra small and light.
About the Author:
You will find extra information regarding outdoor wireless speaker systems at http://www.amphony.com/products/wireless-speaker.htm .
Tidak ada komentar:
Posting Komentar