The impact of signal-to-noise ratio on the sound quality of power amplifiers
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Update time : 2024-10-22 09:21:23
In the field of audio equipment, power amplifiers are the key link in amplifying audio signals, and their performance is directly related to the quality of sound. An important indicator for evaluating the performance of power amplifiers is the signal-to-noise ratio. In short, the signal-to-noise ratio is the ratio of signal to noise. It is expressed in decibels (dB). The higher the value, the smaller the background noise and the purer the sound quality. There are also some professional key points about the signal-to-noise ratio, which will be introduced to you in detail below:
1. Measurement method: In the absence of audio input, measure the noise level of the power amplifier output, and then compare it with the signal level when there is audio input to calculate the signal-to-noise ratio.
2. Influencing factors: The signal-to-noise ratio is affected by many factors, including the design, manufacturing quality, power supply, circuit layout, component quality, etc. of the power amplifier.
3. Dynamic range: The signal-to-noise ratio is a component of the dynamic range, which refers to the range of signal strengths that the device can handle, from the lowest audible level to the maximum undistorted level.
The impact of signal-to-noise ratio on sound quality in an amplifier is mainly reflected in the following aspects:
1. Clarity: A high signal-to-noise ratio means low background noise, so every detail of the audio signal can be heard more clearly without being covered by noise.
2. Purity: A high signal-to-noise ratio can reduce the background "hiss" or "buzzing", which is usually particularly noticeable in quiet passages or at low volumes. A high signal-to-noise ratio helps maintain the purity of the music.
3. Reduce distortion: Although the signal-to-noise ratio does not directly measure distortion, a high signal-to-noise ratio usually means that the circuit design is better, which can indirectly reduce distortion because a better circuit design can process signals more efficiently.
4. Reduce auditory fatigue: Listening to audio with a low signal-to-noise ratio for a long time may cause auditory fatigue because the brain needs to work hard to distinguish between signals and noise. A high signal-to-noise ratio can reduce this effort and make the listening experience easier and more enjoyable.
When we choose to buy audio equipment such as amplifiers, we can first check whether they have the corresponding technical specifications and look for those marked with a high signal-to-noise ratio. For example, some professional audio equipment will provide a signal-to-noise ratio of more than 100dB.
(For example, Sinbosen's DS series amplifiers will indicate the reference parameters in the introduction. The signal-to-noise ratio of DS-10Q is greater than 112dBA.)
Here are some reference values for signal-to-noise ratio:
Entry level: 80dB to 90dB
Intermediate and advanced: 90dB to 100dB
Professional: 100dB to 120dB
High-end professional: more than 129dB
It should be noted that the signal-to-noise ratio is only one aspect of measuring the performance of audio equipment. Other parameters such as total harmonic distortion (THD), frequency response, damping factor, etc. are equally important.
For more information about total harmonic distortion, please click this link:
https://www.sinbosenaudio.com/info/the-impact-of-total-harmonic-distortion-on-the-sound-quality-of-power-amplifiers-i00397i1.html
Frequency response:
https://www.sinbosenaudio.com/info/importance-of-frequency-response-i00380i1.html
No matter how much professional data there is, it is not as good as the effect of on-site audition. During the Canton Fair, if you happen to be coming to China, please contact us and make an appointment to visit Sinbosen's factory and showroom. We will provide you with free airport pick-up service and the highest courtesy. And arrange professional tuning engineers for you to assist you in testing speakers and power amplifiers.
Looking forward to your arrival!
1. Measurement method: In the absence of audio input, measure the noise level of the power amplifier output, and then compare it with the signal level when there is audio input to calculate the signal-to-noise ratio.
2. Influencing factors: The signal-to-noise ratio is affected by many factors, including the design, manufacturing quality, power supply, circuit layout, component quality, etc. of the power amplifier.
3. Dynamic range: The signal-to-noise ratio is a component of the dynamic range, which refers to the range of signal strengths that the device can handle, from the lowest audible level to the maximum undistorted level.
The impact of signal-to-noise ratio on sound quality in an amplifier is mainly reflected in the following aspects:
1. Clarity: A high signal-to-noise ratio means low background noise, so every detail of the audio signal can be heard more clearly without being covered by noise.
2. Purity: A high signal-to-noise ratio can reduce the background "hiss" or "buzzing", which is usually particularly noticeable in quiet passages or at low volumes. A high signal-to-noise ratio helps maintain the purity of the music.
3. Reduce distortion: Although the signal-to-noise ratio does not directly measure distortion, a high signal-to-noise ratio usually means that the circuit design is better, which can indirectly reduce distortion because a better circuit design can process signals more efficiently.
4. Reduce auditory fatigue: Listening to audio with a low signal-to-noise ratio for a long time may cause auditory fatigue because the brain needs to work hard to distinguish between signals and noise. A high signal-to-noise ratio can reduce this effort and make the listening experience easier and more enjoyable.
When we choose to buy audio equipment such as amplifiers, we can first check whether they have the corresponding technical specifications and look for those marked with a high signal-to-noise ratio. For example, some professional audio equipment will provide a signal-to-noise ratio of more than 100dB.
(For example, Sinbosen's DS series amplifiers will indicate the reference parameters in the introduction. The signal-to-noise ratio of DS-10Q is greater than 112dBA.)
Here are some reference values for signal-to-noise ratio:
Entry level: 80dB to 90dB
Intermediate and advanced: 90dB to 100dB
Professional: 100dB to 120dB
High-end professional: more than 129dB
It should be noted that the signal-to-noise ratio is only one aspect of measuring the performance of audio equipment. Other parameters such as total harmonic distortion (THD), frequency response, damping factor, etc. are equally important.
For more information about total harmonic distortion, please click this link:
https://www.sinbosenaudio.com/info/the-impact-of-total-harmonic-distortion-on-the-sound-quality-of-power-amplifiers-i00397i1.html
Frequency response:
https://www.sinbosenaudio.com/info/importance-of-frequency-response-i00380i1.html
No matter how much professional data there is, it is not as good as the effect of on-site audition. During the Canton Fair, if you happen to be coming to China, please contact us and make an appointment to visit Sinbosen's factory and showroom. We will provide you with free airport pick-up service and the highest courtesy. And arrange professional tuning engineers for you to assist you in testing speakers and power amplifiers.
Looking forward to your arrival!
Contact us:
sales2@sinbosen.com
Whatsapp:https://api.whatsapp.com/send?l=en&phnoe=8616676738225
Website:https://www.sinbosenaudio.com/
sales2@sinbosen.comWhatsapp:https://api.whatsapp.com/send?l=en&phnoe=8616676738225
Website:https://www.sinbosenaudio.com/
