How Does Cordless Speaker Energy Efficiency Influence Sound Quality?
Let me look at the word "power efficiency" that shows you how much wireless loudspeakers squander to guide you choose a set of cordless loudspeakers.
A number of issues are caused by wireless speakers which have low power efficiency: Wireless speakers that have small power efficiency will squander some power. It is smart to make note of the additional power cost while choosing between a high- and low-efficiency product. The squandered energy is radiated by the wireless speakers as heat. To shield the circuit elements, low-efficiency cordless loudspeakers need to find ways to get rid of the heat that is produced. Commonly extra elements need to be included in order to dissipate sufficient power and sustain the ideal working temperature. These elements are typically heat sinks as well as fans. These heat sinks consume a fair amount of room and make the wireless speakers large and heavy. Further, they add to the cost of the wireless loudspeakers. Low-efficiency wireless loudspeakers additionally require a great deal of circulation around the cordless loudspeakers. Consequently they can not be put in close spaces or inside air-tight enclosures.
Low-efficiency products demand more total energy to create the same level of audio power as high-efficiency products. Thus they need a bigger power supply which makes the wireless loudspeakers more expensive to construct. An increased level of heat triggers further stress on components. The life expectancy of the cordless speakers could be lowered and reliability could be affected. High-efficiency cordless loudspeakers however do not endure these problems and can be designed small.
You ought to look for the power efficiency value whilst attempting to find a pair of cordless loudspeakers. The best spot to check is the cordless speakers data sheet. Efficiency is usually displayed in percent. Different amplifier architectures provide different power efficiencies. Class-A amps are amongst the least efficient and Class-D the most efficient. Standard power efficiencies range between 25% to 98%. Acquiring an amp having an efficiency of 90% for example shows that 10% of the energy that is utilized is wasted when 90% would be audio power.
Then again, there are a few things to note about efficiency. Firstly, this figure is dependent on the level of energy that the amplifier is providing. Every audio amp is going to use up a specific level of energy irrespective of whether or not it supplies any power to the speaker. For that reason the lower the power the amp delivers, the smaller the efficiency. As a consequence audio manufacturers generally specify the efficiency for the highest audio power that the amplifier can provide. To figure out the efficiency, the audio energy that is used by a power resistor which is attached to the amp is divided by the total power the amp uses whilst being fed a constant sine wave tone. Because the efficiency depends upon the audio power, usually the output power is varied and an efficiency curve made which is able to show the amplifier efficiency for every level of output power.
Wireless loudspeakers that employ switching-mode amps have a switching stage which leads to a certain amount of non-linear behavior. Thus cordless speakers that use Class-D amps generally have smaller music fidelity than types utilizing analog Class-A amplifiers. Subsequently you are going to need to base your decision on whether you need small size and low energy usage or highest music fidelity. On the other hand, the most recent wireless speakers that use switching-mode audio amplifiers, including Class-T amps, offer music fidelity that comes close to that of low-efficiency analog amplifiers and can be created extra small and light.
A number of issues are caused by wireless speakers which have low power efficiency: Wireless speakers that have small power efficiency will squander some power. It is smart to make note of the additional power cost while choosing between a high- and low-efficiency product. The squandered energy is radiated by the wireless speakers as heat. To shield the circuit elements, low-efficiency cordless loudspeakers need to find ways to get rid of the heat that is produced. Commonly extra elements need to be included in order to dissipate sufficient power and sustain the ideal working temperature. These elements are typically heat sinks as well as fans. These heat sinks consume a fair amount of room and make the wireless speakers large and heavy. Further, they add to the cost of the wireless loudspeakers. Low-efficiency wireless loudspeakers additionally require a great deal of circulation around the cordless loudspeakers. Consequently they can not be put in close spaces or inside air-tight enclosures.
Low-efficiency products demand more total energy to create the same level of audio power as high-efficiency products. Thus they need a bigger power supply which makes the wireless loudspeakers more expensive to construct. An increased level of heat triggers further stress on components. The life expectancy of the cordless speakers could be lowered and reliability could be affected. High-efficiency cordless loudspeakers however do not endure these problems and can be designed small.
You ought to look for the power efficiency value whilst attempting to find a pair of cordless loudspeakers. The best spot to check is the cordless speakers data sheet. Efficiency is usually displayed in percent. Different amplifier architectures provide different power efficiencies. Class-A amps are amongst the least efficient and Class-D the most efficient. Standard power efficiencies range between 25% to 98%. Acquiring an amp having an efficiency of 90% for example shows that 10% of the energy that is utilized is wasted when 90% would be audio power.
Then again, there are a few things to note about efficiency. Firstly, this figure is dependent on the level of energy that the amplifier is providing. Every audio amp is going to use up a specific level of energy irrespective of whether or not it supplies any power to the speaker. For that reason the lower the power the amp delivers, the smaller the efficiency. As a consequence audio manufacturers generally specify the efficiency for the highest audio power that the amplifier can provide. To figure out the efficiency, the audio energy that is used by a power resistor which is attached to the amp is divided by the total power the amp uses whilst being fed a constant sine wave tone. Because the efficiency depends upon the audio power, usually the output power is varied and an efficiency curve made which is able to show the amplifier efficiency for every level of output power.
Wireless loudspeakers that employ switching-mode amps have a switching stage which leads to a certain amount of non-linear behavior. Thus cordless speakers that use Class-D amps generally have smaller music fidelity than types utilizing analog Class-A amplifiers. Subsequently you are going to need to base your decision on whether you need small size and low energy usage or highest music fidelity. On the other hand, the most recent wireless speakers that use switching-mode audio amplifiers, including Class-T amps, offer music fidelity that comes close to that of low-efficiency analog amplifiers and can be created extra small and light.
You are receiving this because you signed up for it on 2011-10-03 from IP 203.109.66.181
To fine-tune your selection of which articles to receive, just login here
using your username:
To unsubscribe please use the following link:
Unsubscribe
No comments:
Post a Comment