Cordless speaker manufacturers often present the frequency response of their products and solutions which, unfortunately, doesn't always tell you a lot regarding the sound quality. You possibly will not fully understand precisely how the frequency response is measured. I will describe what precisely this expression means. Hopefully you'll be able to make a much more informed buying decision.
Cordless speakers are meant to transmit and the reproduce a music signal to moderate or high volume. Makers typically publish the frequency range over which the cordless loudspeakers work. If the frequency range is 20 Hz to 20 kHz as an example, the wireless speakers can transmit all signals with a frequency higher than 20 Hz and less than 20 kHz. Yet, there is a lot more to comprehending the wireless loudspeakers's performance than merely considering these numbers.
On the other hand, various manufacturers push this standard to the limit and will list a maximum frequency where the wireless speakers will hardly deliver a beep any more. Also, just reviewing these 2 figures will not say much about the linearity of the frequency response. Subsequently it is ideal to possess a complete frequency response graph. This kind of chart will show if there are any sort of significant peaks or valleys within the working frequency range. Peaks as well as valleys may cause colorization of the audio. Preferably the wireless loudspeakers ought to have a constant sound pressure level within the entire frequency response except for the drop off at the lower and upper limit. In addition to the frequency response, a phase response diagram may also tell a good deal in regards to the performance as well as quality of sound of the wireless speakers.
The conditions under which the frequency response was determined may also be important to understand. The fact is that numerous amplifiers which are incorporated into the cordless speakers are going to behave 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.
Typically contemporary wireless loudspeakers which use digital or "Class-D" amps will show changes in the frequency response with different driver loads. The reason is the fact that Class-D amps employ switching FETs as the power stage which produce a lot of switching components. These components are removed using a filter which is part of the internal speaker amplifier. Yet, the frequency response of the amplifier now depends on the speaker driver load since the behavior of this lowpass filter is influenced by the load impedance. Usually the lower the speaker driver load impedance the lower the upper cut-off frequency of the amplifier
A number of amplifiers incorporate feedback as a way to compensate for changes in gain resulting from different attached loads. Different amps make use of transformers and offer outputs for various loudspeaker loads. In addition to improving the frequency response of the amplifier, this method normally furthermore improves the amplifier efficiency.
Cordless speakers are meant to transmit and the reproduce a music signal to moderate or high volume. Makers typically publish the frequency range over which the cordless loudspeakers work. If the frequency range is 20 Hz to 20 kHz as an example, the wireless speakers can transmit all signals with a frequency higher than 20 Hz and less than 20 kHz. Yet, there is a lot more to comprehending the wireless loudspeakers's performance than merely considering these numbers.
On the other hand, various manufacturers push this standard to the limit and will list a maximum frequency where the wireless speakers will hardly deliver a beep any more. Also, just reviewing these 2 figures will not say much about the linearity of the frequency response. Subsequently it is ideal to possess a complete frequency response graph. This kind of chart will show if there are any sort of significant peaks or valleys within the working frequency range. Peaks as well as valleys may cause colorization of the audio. Preferably the wireless loudspeakers ought to have a constant sound pressure level within the entire frequency response except for the drop off at the lower and upper limit. In addition to the frequency response, a phase response diagram may also tell a good deal in regards to the performance as well as quality of sound of the wireless speakers.
The conditions under which the frequency response was determined may also be important to understand. The fact is that numerous amplifiers which are incorporated into the cordless speakers are going to behave 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.
Typically contemporary wireless loudspeakers which use digital or "Class-D" amps will show changes in the frequency response with different driver loads. The reason is the fact that Class-D amps employ switching FETs as the power stage which produce a lot of switching components. These components are removed using a filter which is part of the internal speaker amplifier. Yet, the frequency response of the amplifier now depends on the speaker driver load since the behavior of this lowpass filter is influenced by the load impedance. Usually the lower the speaker driver load impedance the lower the upper cut-off frequency of the amplifier
A number of amplifiers incorporate feedback as a way to compensate for changes in gain resulting from different attached loads. Different amps make use of transformers and offer outputs for various loudspeaker loads. In addition to improving the frequency response of the amplifier, this method normally furthermore improves the amplifier efficiency.
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