Stereo amplifier producers typically show the frequency response of their solutions which, sad to say, will not automatically show you a great deal concerning the audio quality. You possibly will not understand fully precisely how the frequency response is calculated. I'll discuss what precisely this term means. Ideally you'll be able to make a much more educated buying decision.
A large frequency response does not always mean the amplifier provides great audio quality. For instance an amplifier with a frequency response between 30 Hz and 15 kHz might sound much better than a different amp having a response between 10 Hz and 30 kHz. Also, every maker, it seems, utilizes a different technique for specifying the lowest and maximum frequency of their amps. The most frequently used way is to describe the frequency response as the frequency range within which the amplifier has fairly constant gain having a highest drop of 3 decibel (dB). Usually the drop in amplification is greatest at the lower and upper frequency.
A large frequency response doesn't mean the amplifier provides good sound quality. As an example an amplifier that has a frequency response between 30 Hz and 15 kHz might sound a lot better than a different amp with a response between 10 Hz and 30 kHz. Also, each producer, it seems, utilizes a different technique for specifying the lowest and highest frequency of their amps. The most popular way is to describe the frequency response as the frequency range within which the amp will have quite constant amplification having a highest drop of 3 decibel (dB). Ordinarily the drop in gain is highest at the upper and lower frequency. Then again, the frequency response quite often is utilized in order to mislead consumers by stretching the frequency range far beyond the range in which the amplifier still operates effectively and also conceals the reality that the amp might not be linear. Thus it is best to possess a full frequency response chart. This sort of chart will reveal whether or not there are any major peaks and / or valleys inside the working frequency range. You can even wish to demand a phase response diagram that provides essential hints in regards to the audio quality.
The conditions under which the frequency response was calculated may also be crucial to fully understand. The fact is amplifiers might have different frequency responses depending on the loudspeaker that is connected.
A few of the most recent digital amplifiers feed back the audio signal after the lowpass filter to be able to compensate for this drawback and to make the frequency response of the amp independent of the connected load. Then again, if the amplifier is not designed properly, this kind of feedback can cause instability and bring about loud noise being created by the amplifier if certain loudspeakers are connected. An additional technique is to provide dedicated outputs for various speaker impedances that are attached to the amp power stage by way of audio transformers.
A large frequency response does not always mean the amplifier provides great audio quality. For instance an amplifier with a frequency response between 30 Hz and 15 kHz might sound much better than a different amp having a response between 10 Hz and 30 kHz. Also, every maker, it seems, utilizes a different technique for specifying the lowest and maximum frequency of their amps. The most frequently used way is to describe the frequency response as the frequency range within which the amplifier has fairly constant gain having a highest drop of 3 decibel (dB). Usually the drop in amplification is greatest at the lower and upper frequency.
A large frequency response doesn't mean the amplifier provides good sound quality. As an example an amplifier that has a frequency response between 30 Hz and 15 kHz might sound a lot better than a different amp with a response between 10 Hz and 30 kHz. Also, each producer, it seems, utilizes a different technique for specifying the lowest and highest frequency of their amps. The most popular way is to describe the frequency response as the frequency range within which the amp will have quite constant amplification having a highest drop of 3 decibel (dB). Ordinarily the drop in gain is highest at the upper and lower frequency. Then again, the frequency response quite often is utilized in order to mislead consumers by stretching the frequency range far beyond the range in which the amplifier still operates effectively and also conceals the reality that the amp might not be linear. Thus it is best to possess a full frequency response chart. This sort of chart will reveal whether or not there are any major peaks and / or valleys inside the working frequency range. You can even wish to demand a phase response diagram that provides essential hints in regards to the audio quality.
The conditions under which the frequency response was calculated may also be crucial to fully understand. The fact is amplifiers might have different frequency responses depending on the loudspeaker that is connected.
A few of the most recent digital amplifiers feed back the audio signal after the lowpass filter to be able to compensate for this drawback and to make the frequency response of the amp independent of the connected load. Then again, if the amplifier is not designed properly, this kind of feedback can cause instability and bring about loud noise being created by the amplifier if certain loudspeakers are connected. An additional technique is to provide dedicated outputs for various speaker impedances that are attached to the amp power stage by way of audio transformers.
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