When buying a brand new set of cordless loudspeakers, you almost certainly are going to take a look at the technical specifications. One often found parameter is the frequency response. This spec while crucial will not tell the full story concerning how good the speakers are going to sound. You will possibly not fully grasp how the frequency response is calculated. I am going to discuss what exactly this term means. Ideally you'll be able to make a much more informed purchasing decision.
A set of wireless loudspeakers are able to only work within the particular frequency range. Any signals just outside of this range are going to be removed. Consequently the frequency response gives a vital hint regarding whether a certain set of cordless speakers may be well suited for a particular use. Generally a lower and upper frequency are given, like 20 Hz - 20 kHz. This kind of specification shows that the cordless loudspeakers have the ability to transmit and then reproduce music inside that frequency range. It may seem the greater the frequency response the better the cordless loudspeakers. That, on the other hand, may well not necessarily be. You should consider the specs more closely to be able to adequately interpret these.
The fact is, a set of wireless loudspeakers which has a frequency response from 10 Hz to 30 kHz can in fact have much lesser audio quality than a set that provides a frequency response from 20 Hz to 15 kHz. Different suppliers often utilize different ways to define frequency response. The most widely used technique is to describe the frequency response as the frequency range within which the wireless speakers will have rather constant sound pressure level having a maximum drop of 3 decibel (dB). Typically the drop in sound pressure level is greatest at the lower and upper frequency. However, several manufacturers push this standard to the limit and may list a maximum frequency where the wireless speakers will hardly generate a beep anymore. Additionally, just looking at these 2 figures isn't going to say a lot concerning the linearity of the frequency response. Therefore it is better to possess a full frequency response document. This kind of graph is going to show whether or not there are any kind of substantial peaks and / or valleys within the operating frequency range. You might also wish to request a phase response chart that provides crucial hints regarding the audio quality.
However, several suppliers push this standard to the limit and often will list a maximum frequency where the wireless loudspeakers will barely generate a beep anymore. In addition, just looking at these 2 figures will not say a lot about the linearity of the frequency response. Consequently it is ideal to possess a full frequency response graph. Such a graph will reveal whether or not there are any substantial peaks or valleys within the working frequency range. You may also desire to ask for a phase response chart that also offers important hints about the sound quality.
The frequency response of Class-D amplifiers shows the largest change with various speaker loads due to the integrated lowpass filter which removes switching noise from the speaker amplifier's signal. The lowpass filter characteristic, on the other hand, greatly varies according to the attached speaker load.
Some amplifiers include feedback to be able to compensate for changes in gain as a result of different attached loads. Other amps make use of transformers and provide outputs for various loudspeaker loads. Apart from enhancing the frequency response of the amplifier, this method normally also improves the amplifier efficiency.
A set of wireless loudspeakers are able to only work within the particular frequency range. Any signals just outside of this range are going to be removed. Consequently the frequency response gives a vital hint regarding whether a certain set of cordless speakers may be well suited for a particular use. Generally a lower and upper frequency are given, like 20 Hz - 20 kHz. This kind of specification shows that the cordless loudspeakers have the ability to transmit and then reproduce music inside that frequency range. It may seem the greater the frequency response the better the cordless loudspeakers. That, on the other hand, may well not necessarily be. You should consider the specs more closely to be able to adequately interpret these.
The fact is, a set of wireless loudspeakers which has a frequency response from 10 Hz to 30 kHz can in fact have much lesser audio quality than a set that provides a frequency response from 20 Hz to 15 kHz. Different suppliers often utilize different ways to define frequency response. The most widely used technique is to describe the frequency response as the frequency range within which the wireless speakers will have rather constant sound pressure level having a maximum drop of 3 decibel (dB). Typically the drop in sound pressure level is greatest at the lower and upper frequency. However, several manufacturers push this standard to the limit and may list a maximum frequency where the wireless speakers will hardly generate a beep anymore. Additionally, just looking at these 2 figures isn't going to say a lot concerning the linearity of the frequency response. Therefore it is better to possess a full frequency response document. This kind of graph is going to show whether or not there are any kind of substantial peaks and / or valleys within the operating frequency range. You might also wish to request a phase response chart that provides crucial hints regarding the audio quality.
However, several suppliers push this standard to the limit and often will list a maximum frequency where the wireless loudspeakers will barely generate a beep anymore. In addition, just looking at these 2 figures will not say a lot about the linearity of the frequency response. Consequently it is ideal to possess a full frequency response graph. Such a graph will reveal whether or not there are any substantial peaks or valleys within the working frequency range. You may also desire to ask for a phase response chart that also offers important hints about the sound quality.
The frequency response of Class-D amplifiers shows the largest change with various speaker loads due to the integrated lowpass filter which removes switching noise from the speaker amplifier's signal. The lowpass filter characteristic, on the other hand, greatly varies according to the attached speaker load.
Some amplifiers include feedback to be able to compensate for changes in gain as a result of different attached loads. Other amps make use of transformers and provide outputs for various loudspeaker loads. Apart from enhancing the frequency response of the amplifier, this method normally also improves the amplifier efficiency.
No comments:
Post a Comment