Wireless speaker companies frequently publish the frequency response of their items which, however, doesn't automatically tell you a great deal regarding the audio quality. You might not fully grasp how the frequency response is measured. I'll describe what specifically this particular phrase means. I hope you'll be able to make a more educated buying decision.
Seems like there are many methods which manufacturers employ whilst specifying the frequency response. Ordinarily, the frequency response shows the normal working range of the wireless speakers. Inside this range, the sound pressure level is largely constant. At the lower and upper cutoff frequencies the gain is going to drop by at most 3 decibels.
On the other hand, a few producers push this standard to the limit and may show an upper frequency where the cordless loudspeakers will barely deliver a beep anymore. In addition, just looking at these 2 figures doesn't say much concerning the linearity of the frequency response. A complete frequency response chart, however, will show if there are any peaks or valleys and also show how the frequency response is to be interpreted. You may additionally want to demand a phase response chart that provides important clues regarding the quality of sound.
The circumstances under which the frequency response was determined are also essential to comprehend. The fact is that a large number of amps which are incorporated into the wireless loudspeakers will work in a different way with different speaker loads. This is due to the fact that different speaker loads can cause changes to the behavior of the output power stage of the amp.
In order to better comprehend the frequency response behavior of a particular type, you should make an effort to determine under which circumstances the response was measured. You may find this info in the data sheet of the wireless loudspeakers. Then again, a lot of manufacturers are not going to show those in which case you ought to get in touch with the producer directly. The fact is that lots of amplifiers which are incorporated into the wireless loudspeakers will function differently with different speaker loads. This is mainly because that various speaker 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 various speaker loads because of the built-in lowpass filter that removes switching noise from the speaker amplifier's signal. A varying speaker driver load will affect the filter response to some amount. Generally the lower the loudspeaker driver impedance the lower the highest frequency of the built-in amplifier. Moreover, the linearity of the amplifier gain is going to depend on the driver load.
Some amp topologies offer a way to compensate for changes in the amplifier gain with different speaker loads. One of those approaches utilizes feedback. The amplifier output signal following the internal lowpass is input to the amplifier input for comparison. If not designed adequately, this method could cause instability of the amp however. Different amplifiers employ transformers and offer outputs for several speaker loads. Apart from improving upon the frequency response of the amp, this method usually additionally enhances the amplifier efficiency.
Seems like there are many methods which manufacturers employ whilst specifying the frequency response. Ordinarily, the frequency response shows the normal working range of the wireless speakers. Inside this range, the sound pressure level is largely constant. At the lower and upper cutoff frequencies the gain is going to drop by at most 3 decibels.
On the other hand, a few producers push this standard to the limit and may show an upper frequency where the cordless loudspeakers will barely deliver a beep anymore. In addition, just looking at these 2 figures doesn't say much concerning the linearity of the frequency response. A complete frequency response chart, however, will show if there are any peaks or valleys and also show how the frequency response is to be interpreted. You may additionally want to demand a phase response chart that provides important clues regarding the quality of sound.
The circumstances under which the frequency response was determined are also essential to comprehend. The fact is that a large number of amps which are incorporated into the wireless loudspeakers will work in a different way with different speaker loads. This is due to the fact that different speaker loads can cause changes to the behavior of the output power stage of the amp.
In order to better comprehend the frequency response behavior of a particular type, you should make an effort to determine under which circumstances the response was measured. You may find this info in the data sheet of the wireless loudspeakers. Then again, a lot of manufacturers are not going to show those in which case you ought to get in touch with the producer directly. The fact is that lots of amplifiers which are incorporated into the wireless loudspeakers will function differently with different speaker loads. This is mainly because that various speaker 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 various speaker loads because of the built-in lowpass filter that removes switching noise from the speaker amplifier's signal. A varying speaker driver load will affect the filter response to some amount. Generally the lower the loudspeaker driver impedance the lower the highest frequency of the built-in amplifier. Moreover, the linearity of the amplifier gain is going to depend on the driver load.
Some amp topologies offer a way to compensate for changes in the amplifier gain with different speaker loads. One of those approaches utilizes feedback. The amplifier output signal following the internal lowpass is input to the amplifier input for comparison. If not designed adequately, this method could cause instability of the amp however. Different amplifiers employ transformers and offer outputs for several speaker loads. Apart from improving upon the frequency response of the amp, this method usually additionally enhances the amplifier efficiency.
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