Wireless speaker providers frequently publish the frequency response of their items which, sad to say, doesn't necessarily tell you a great deal regarding the audio quality. To help you make a wiser buying decision, I will clarify what this spec means and the way to understand it. This ideally will make certain you'll get the best cordless speakers for your task.
A set of wireless loudspeakers are transmit and the reproduce a sound signal that is within the frequency response range. Typically a lower and upper frequency are given, for example 20 Hz - 20 kHz. This kind of spec shows that the cordless speakers can transmit and then reproduce audio inside of that frequency range. However, there's much more to comprehending the cordless loudspeakers's overall performance than just taking a look at these figures.
In truth, a set of cordless speakers that has a frequency response from 10 Hz to 30 kHz may actually have much worse audio quality than a set which provides a frequency response from 20 Hz to 15 kHz. Different manufacturers apparently employ various methods to define frequency response. Typically, the frequency response displays the normal working range of the wireless loudspeakers. Inside this range, the sound pressure level is essentially constant. At the lower and upper cutoff frequencies the gain is going to drop by at most 3 decibels.
The circumstances under which the frequency response was calculated may also be important to recognize. One condition which might impact the frequency response is the impedance of the loudspeaker driver built into the cordless speakers. Normal speaker driver impedances range from 2 to 16 Ohms. The lower the loudspeaker driver impedance the greater the load for the internal amplifier.
To better comprehend the frequency response behavior of a specific type, you should try to figure out under which circumstances the response was measured. You'll find this information in the data sheet of the wireless speakers. However, a lot of suppliers will not publish these in which case you should make contact with the manufacturer directly. The fact is that lots of amplifiers which are incorporated into the wireless speakers will behave differently with different loudspeaker loads. This is because that various loudspeaker loads can cause changes to the behavior of the output power stage of the amplifier. This change is most detectable with many cordless speakers that use digital amplifiers, also called Class-D amps. Class-D amps employ a lowpass filter in their output as a way to reduce the switching components which are produced by the internal power FETs. The lowpass filter characteristic, on the other hand, heavily is dependent upon the attached speaker load.
Some of the most recent digital amplifiers feed back the audio signal after the lowpass filter to compensate for this tradeoff and also to make the frequency response of the amp independent of the attached driver load. Then again, if the amp is not constructed properly, this kind of feedback could potentially cause instability and also cause loud noise being created by the amp if particular speakers are attached. An additional technique is to provide specific outputs for various loudspeaker driver impedances which are attached to the amp power phase by using audio transformers.
A set of wireless loudspeakers are transmit and the reproduce a sound signal that is within the frequency response range. Typically a lower and upper frequency are given, for example 20 Hz - 20 kHz. This kind of spec shows that the cordless speakers can transmit and then reproduce audio inside of that frequency range. However, there's much more to comprehending the cordless loudspeakers's overall performance than just taking a look at these figures.
In truth, a set of cordless speakers that has a frequency response from 10 Hz to 30 kHz may actually have much worse audio quality than a set which provides a frequency response from 20 Hz to 15 kHz. Different manufacturers apparently employ various methods to define frequency response. Typically, the frequency response displays the normal working range of the wireless loudspeakers. Inside this range, the sound pressure level is essentially constant. At the lower and upper cutoff frequencies the gain is going to drop by at most 3 decibels.
The circumstances under which the frequency response was calculated may also be important to recognize. One condition which might impact the frequency response is the impedance of the loudspeaker driver built into the cordless speakers. Normal speaker driver impedances range from 2 to 16 Ohms. The lower the loudspeaker driver impedance the greater the load for the internal amplifier.
To better comprehend the frequency response behavior of a specific type, you should try to figure out under which circumstances the response was measured. You'll find this information in the data sheet of the wireless speakers. However, a lot of suppliers will not publish these in which case you should make contact with the manufacturer directly. The fact is that lots of amplifiers which are incorporated into the wireless speakers will behave differently with different loudspeaker loads. This is because that various loudspeaker loads can cause changes to the behavior of the output power stage of the amplifier. This change is most detectable with many cordless speakers that use digital amplifiers, also called Class-D amps. Class-D amps employ a lowpass filter in their output as a way to reduce the switching components which are produced by the internal power FETs. The lowpass filter characteristic, on the other hand, heavily is dependent upon the attached speaker load.
Some of the most recent digital amplifiers feed back the audio signal after the lowpass filter to compensate for this tradeoff and also to make the frequency response of the amp independent of the attached driver load. Then again, if the amp is not constructed properly, this kind of feedback could potentially cause instability and also cause loud noise being created by the amp if particular speakers are attached. An additional technique is to provide specific outputs for various loudspeaker driver impedances which are attached to the amp power phase by using audio transformers.
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