I am going to have a look at the definition of "power efficiency" which shows you how much wireless outdoor speakers squander so that you can choose a set of wireless speakers.
A relatively large amount of power is dissipated as heat if you get a pair of low-efficiency wireless loudspeakers. This may contribute to a number of issues: Low-efficiency wireless speakers are going to waste a certain amount of energy as heat and so are costlier to operate in comparison with high-efficiency products because of the larger power utilization. Cordless speakers that have lower efficiency typically have several heat sinks in order to help radiate the squandered power. These heat sinks consume a good amount of room and make the wireless loudspeakers bulky and heavy. Additionally, they raise the cost of the cordless speakers. In order to help radiate heat, low-power-efficiency amps require sufficient air circulation. Thus they can't be placed in areas without any circulation. In addition, they cannot be fitted inside water-resistant enclosures.
Given that low-efficiency wireless speakers are going to produce just a small fraction of the energy consumed by the amplifier as useful audio power, the amp requires a bigger power supply than high-efficiency models causing more expensive. An elevated level of heat triggers extra stress on components. The life expectancy of the cordless loudspeakers may be lowered and reliability can be jeopardized. High-efficiency wireless speakers in contrast tend not to suffer from these issues and may be built really small.
The power efficiency is shown as a percentage in the cordless loudspeakers data sheet. Different amp topologies offer different power efficiencies. Class-A amplifiers are amongst the least efficient and Class-D the most efficient. Standard power efficiencies vary from 25% to 98%. The higher the efficiency value, the less the amount of power squandered as heat. A
A relatively large amount of power is dissipated as heat if you get a pair of low-efficiency wireless loudspeakers. This may contribute to a number of issues: Low-efficiency wireless speakers are going to waste a certain amount of energy as heat and so are costlier to operate in comparison with high-efficiency products because of the larger power utilization. Cordless speakers that have lower efficiency typically have several heat sinks in order to help radiate the squandered power. These heat sinks consume a good amount of room and make the wireless loudspeakers bulky and heavy. Additionally, they raise the cost of the cordless speakers. In order to help radiate heat, low-power-efficiency amps require sufficient air circulation. Thus they can't be placed in areas without any circulation. In addition, they cannot be fitted inside water-resistant enclosures.
Given that low-efficiency wireless speakers are going to produce just a small fraction of the energy consumed by the amplifier as useful audio power, the amp requires a bigger power supply than high-efficiency models causing more expensive. An elevated level of heat triggers extra stress on components. The life expectancy of the cordless loudspeakers may be lowered and reliability can be jeopardized. High-efficiency wireless speakers in contrast tend not to suffer from these issues and may be built really small.
The power efficiency is shown as a percentage in the cordless loudspeakers data sheet. Different amp topologies offer different power efficiencies. Class-A amplifiers are amongst the least efficient and Class-D the most efficient. Standard power efficiencies vary from 25% to 98%. The higher the efficiency value, the less the amount of power squandered as heat. A
100-Watt amp having 50% efficiency would have an energy usage of 200 Watts.
However, there are a few things to notice regarding efficiency. First of all, this figure is dependent on the level of power that the amp is delivering. Amps possess larger efficiency while supplying larger output power than when working at small power due to the fixed power that they use up irrespective of the output power. The efficiency figure in the amp data sheet is usually provided for the highest amplifier output power.
To measure the efficiency, typically a test signal of 1 kHz is fed into the amplifier and a power resistor attached to the amp output to emulate the speaker load. Next the amp output signal is tested and the power level calculated that the amp provides to the load which is then divided by the total energy the amplifier consumes. To get a complete efficiency profile, the audio power of the amplifier is swept between different values. At each value the efficiency is calculated and plotted onto a chart.
While choosing a pair of cordless loudspeakers you will need to weigh efficiency versus fidelity given that wireless loudspeakers which employ low-efficiency analog amplifiers frequently provide the highest audio fidelity whilst digital types will have bigger distortion. Some modern wireless speakers, including models which have Class-T amplifiers, are able to lessen audio distortion to levels close to the ones from types utilizing analog music amplifiers and also are able to achieve great signal-to-noise ratio. Deciding on one of these types of wireless loudspeakers will deliver high power efficiency and at the same time large audio fidelity.
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However, there are a few things to notice regarding efficiency. First of all, this figure is dependent on the level of power that the amp is delivering. Amps possess larger efficiency while supplying larger output power than when working at small power due to the fixed power that they use up irrespective of the output power. The efficiency figure in the amp data sheet is usually provided for the highest amplifier output power.
To measure the efficiency, typically a test signal of 1 kHz is fed into the amplifier and a power resistor attached to the amp output to emulate the speaker load. Next the amp output signal is tested and the power level calculated that the amp provides to the load which is then divided by the total energy the amplifier consumes. To get a complete efficiency profile, the audio power of the amplifier is swept between different values. At each value the efficiency is calculated and plotted onto a chart.
While choosing a pair of cordless loudspeakers you will need to weigh efficiency versus fidelity given that wireless loudspeakers which employ low-efficiency analog amplifiers frequently provide the highest audio fidelity whilst digital types will have bigger distortion. Some modern wireless speakers, including models which have Class-T amplifiers, are able to lessen audio distortion to levels close to the ones from types utilizing analog music amplifiers and also are able to achieve great signal-to-noise ratio. Deciding on one of these types of wireless loudspeakers will deliver high power efficiency and at the same time large audio fidelity.
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You can find additional information regarding wireless outdoor speakers as well as wireless surround sound speakers from Amphony's web page.
