When choosing a brand new set of cordless loudspeakers, you almost certainly will take a look at the technical specifications. An often found spec is the frequency response. This parameter even though vital isn't going to tell the entire story regarding how great the speakers are going to sound. I will explain the meaning of this term and also offer some suggestions on how to interpret it while searching for a set of wireless loudspeakers. A set of wireless speakers are able to only operate inside of a particular frequency range. Any signals outside this range will be removed. As such the frequency response provides a significant hint about whether or not a certain set of cordless loudspeakers may be well suited for a particular use. Generally a lower and upper frequency are given, for example 20 Hz - 20 kHz. This spec shows that the cordless loudspeakers are able to transmit and then reproduce audio inside of that frequency range. You might be tempted to go with a set ofwireless loudspeakers which provides the largest frequency response. Yet, there is certainly much more to understanding a wireless speakers's performance than only realizing this simple range.
A large frequency response does not always mean the wireless speakers provide good sound quality. By way of example a set of cordless speakers with a frequency response between 30 Hz and 15 kHz might sound better than another set having a response between 10 Hz and 30 kHz. Also, each manufacturer, it seems, uses a different technique of specifying the minimum and maximum frequency of their cordless speakers. The most popular method is to describe the frequency response as the frequency range within which the wireless speakers have fairly constant sound pressure level having a maximum decrease of 3 decibel (dB). Generally the drop in sound pressure level is greatest at the upper and lower frequency.
Seems like there are lots of methods that companies utilize when specifying the frequency response. The conventional convention is to display the frequency range within which the sound pressure level of the speakers is going to decrease a maximum of 3 dB from the nominal level.
Yet, several companies dismiss this particular convention. They push the lower frequency and higher frequency to where the cordless speakers hardly have any kind of sound response. On top of that, these numbers tell practically nothing about how linear the wireless loudspeakers are working within this range. Hence it is ideal to have a full frequency response graph. This type of chart is going to show whether or not there are any sort of major peaks and valleys inside the working frequency range. Peaks as well as valleys can cause colorization of the audio. Preferably the cordless loudspeakers should have a constant sound pressure level within the entire frequency response excluding the drop off at the lower and upper limit. Aside from the frequency response, a phase response diagram may also tell a lot regarding the overall performance as well as quality of sound of the cordless loudspeakers.
In order to better comprehend the frequency response behavior of a particular type, you should try to find out under which circumstances the response was calculated. You will probably find this data in the data sheet of the cordless loudspeakers. However, the majority of suppliers won't publish these in which case you ought to contact the producer directly. The fact is that lots of amps which are incorporated into the wireless speakers will function differently with different loudspeaker loads. This is due to the fact that different loudspeaker loads can cause changes to the behavior of the output power stage of the amplifier. The frequency response of Class-D amplifiers shows the biggest change with different speaker loads because of the integrated lowpass filter that eliminates switching noise from the speaker amplifier's signal. Yet, the frequency response of the amp now varies according to the speaker driver load considering that the behavior of this lowpass filter is influenced by the load impedance. Normally the lower the loudspeaker driver load impedance the lower the upper cut-off frequency of the amplifier
A few amp topologies offer a way to compensate for changes in the amplifier gain with different speaker loads. One of those methods employs feedback. The amplifier output signal following the internal lowpass is input to the amplifier input for comparison. If not developed properly, this method could potentially cause instability of the amp though. An additional method makes use of audio transformers between the power stage of the amp and various outputs. Every output was created to connect a different loudspeaker load. This approach helps to ensure that the amplifier will be loaded equally and also enhances amplifier efficiency.
A large frequency response does not always mean the wireless speakers provide good sound quality. By way of example a set of cordless speakers with a frequency response between 30 Hz and 15 kHz might sound better than another set having a response between 10 Hz and 30 kHz. Also, each manufacturer, it seems, uses a different technique of specifying the minimum and maximum frequency of their cordless speakers. The most popular method is to describe the frequency response as the frequency range within which the wireless speakers have fairly constant sound pressure level having a maximum decrease of 3 decibel (dB). Generally the drop in sound pressure level is greatest at the upper and lower frequency.
Seems like there are lots of methods that companies utilize when specifying the frequency response. The conventional convention is to display the frequency range within which the sound pressure level of the speakers is going to decrease a maximum of 3 dB from the nominal level.
Yet, several companies dismiss this particular convention. They push the lower frequency and higher frequency to where the cordless speakers hardly have any kind of sound response. On top of that, these numbers tell practically nothing about how linear the wireless loudspeakers are working within this range. Hence it is ideal to have a full frequency response graph. This type of chart is going to show whether or not there are any sort of major peaks and valleys inside the working frequency range. Peaks as well as valleys can cause colorization of the audio. Preferably the cordless loudspeakers should have a constant sound pressure level within the entire frequency response excluding the drop off at the lower and upper limit. Aside from the frequency response, a phase response diagram may also tell a lot regarding the overall performance as well as quality of sound of the cordless loudspeakers.
In order to better comprehend the frequency response behavior of a particular type, you should try to find out under which circumstances the response was calculated. You will probably find this data in the data sheet of the cordless loudspeakers. However, the majority of suppliers won't publish these in which case you ought to contact the producer directly. The fact is that lots of amps which are incorporated into the wireless speakers will function differently with different loudspeaker loads. This is due to the fact that different loudspeaker loads can cause changes to the behavior of the output power stage of the amplifier. The frequency response of Class-D amplifiers shows the biggest change with different speaker loads because of the integrated lowpass filter that eliminates switching noise from the speaker amplifier's signal. Yet, the frequency response of the amp now varies according to the speaker driver load considering that the behavior of this lowpass filter is influenced by the load impedance. Normally the lower the loudspeaker driver load impedance the lower the upper cut-off frequency of the amplifier
A few amp topologies offer a way to compensate for changes in the amplifier gain with different speaker loads. One of those methods employs feedback. The amplifier output signal following the internal lowpass is input to the amplifier input for comparison. If not developed properly, this method could potentially cause instability of the amp though. An additional method makes use of audio transformers between the power stage of the amp and various outputs. Every output was created to connect a different loudspeaker load. This approach helps to ensure that the amplifier will be loaded equally and also enhances amplifier efficiency.
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