When buying a new set of wireless speakers, you probably will take a glimpse at the technical specs. An often found specification is the frequency response. This specification while significant doesn't tell the full story relating to how good the loudspeakers are going to sound. In order to help you make a wiser buying decision, I am going to describe what this spec means and the way to interpret it. This ideally will ensure you will get the best wireless speakers for your project. A set of wireless loudspeakers are able to only function inside of a specific frequency range. Any kind of signals just outside of this range are going to be eliminated. Because of this the frequency response provides a crucial hint regarding whether or not a specific set of wireless speakers could be well suited for a particular use. Normally a lower and upper frequency are listed, such as 20 Hz - 20 kHz. This kind of specification shows that the wireless speakers can transmit and then reproduce music within that frequency range. You may think the greater the frequency response the higher quality the wireless loudspeakers. That, however, may not necessarily be. You have to check out the specifications far more meticulously to properly interpret these.
A set of cordless speakers are transmit and the reproduce a sound signal that is within the frequency response range. This range is specified by showing two frequencies: a lower as well as upper frequency. For instance, the lower frequency may be 20 Hz and the upper frequency 20 kHz. From this specification it appears the cordless speakers can work as a set of HIFI speakers. Yet, there's much more to understanding the wireless speakers's functionality than simply reviewing these numbers.
A large frequency response doesn't mean the cordless loudspeakers have excellent sound quality. As an example a set of wireless loudspeakers with a frequency response between 30 Hz and 15 kHz may sound better than another set having a response between 10 Hz and 30 kHz. Also, each manufacturer, it seems, implements a different procedure for specifying the lowest and highest frequency of their cordless loudspeakers. The most commonly used way is to describe the frequency response as the frequency range within which the cordless loudspeakers have rather constant sound pressure level with a highest drop of 3 decibel (dB). Typically the decline in sound pressure level is highest at the upper and lower frequency. Then again, several producers push this standard to the limit and will list a maximum frequency where the cordless loudspeakers will barely generate a beep any more. Furthermore, simply taking a look at these 2 figures doesn't say a lot about the linearity of the frequency response. Hence it is ideal to possess a full frequency response graph. This kind of chart is going to show whether or not there are any considerable peaks and / or valleys within the operating frequency range. You may additionally desire to ask for a phase response chart which also provides crucial hints in regards to the sound quality.
The conditions under which the frequency response was measured may also be important to understand. In fact amps may have different frequency responses depending on the loudspeaker driver element which is built in.
The frequency response of Class-D amps shows the biggest change with different speaker loads because of the built-in lowpass filter that removes switching noise from the speaker amplifier's signal. A changing speaker driver load is going to affect the filter response to a point. Usually the lower the loudspeaker driver impedance the lower the maximum frequency of the built-in amplifier. In addition, the linearity of the amplifier gain is going to depend on the driver load.
A number of the newest digital amplifiers feed back the music signal after the lowpass filter in order 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 amplifier is not constructed well, this kind of feedback could potentially cause instability and also bring about loud noise being produced by the amplifier if certain loudspeakers are attached. Different amps utilize transformers and offer outputs for different speaker loads. Aside from improving the frequency response of the amplifier, this technique generally additionally improves the amplifier power efficiency.
A set of cordless speakers are transmit and the reproduce a sound signal that is within the frequency response range. This range is specified by showing two frequencies: a lower as well as upper frequency. For instance, the lower frequency may be 20 Hz and the upper frequency 20 kHz. From this specification it appears the cordless speakers can work as a set of HIFI speakers. Yet, there's much more to understanding the wireless speakers's functionality than simply reviewing these numbers.
A large frequency response doesn't mean the cordless loudspeakers have excellent sound quality. As an example a set of wireless loudspeakers with a frequency response between 30 Hz and 15 kHz may sound better than another set having a response between 10 Hz and 30 kHz. Also, each manufacturer, it seems, implements a different procedure for specifying the lowest and highest frequency of their cordless loudspeakers. The most commonly used way is to describe the frequency response as the frequency range within which the cordless loudspeakers have rather constant sound pressure level with a highest drop of 3 decibel (dB). Typically the decline in sound pressure level is highest at the upper and lower frequency. Then again, several producers push this standard to the limit and will list a maximum frequency where the cordless loudspeakers will barely generate a beep any more. Furthermore, simply taking a look at these 2 figures doesn't say a lot about the linearity of the frequency response. Hence it is ideal to possess a full frequency response graph. This kind of chart is going to show whether or not there are any considerable peaks and / or valleys within the operating frequency range. You may additionally desire to ask for a phase response chart which also provides crucial hints in regards to the sound quality.
The conditions under which the frequency response was measured may also be important to understand. In fact amps may have different frequency responses depending on the loudspeaker driver element which is built in.
The frequency response of Class-D amps shows the biggest change with different speaker loads because of the built-in lowpass filter that removes switching noise from the speaker amplifier's signal. A changing speaker driver load is going to affect the filter response to a point. Usually the lower the loudspeaker driver impedance the lower the maximum frequency of the built-in amplifier. In addition, the linearity of the amplifier gain is going to depend on the driver load.
A number of the newest digital amplifiers feed back the music signal after the lowpass filter in order 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 amplifier is not constructed well, this kind of feedback could potentially cause instability and also bring about loud noise being produced by the amplifier if certain loudspeakers are attached. Different amps utilize transformers and offer outputs for different speaker loads. Aside from improving the frequency response of the amplifier, this technique generally additionally improves the amplifier power efficiency.
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