In the sound system, the structure of the speaker is the simplest, but the role it plays is the most important. The sound box is the final link in the sound system, and it is the key equipment that converts electrical signals into sound signals. Because there are not many structural components of the speaker, this leads to any shortcomings that will affect the effect of the entire replay. However, the evaluation of speakers is generally based on subjective listening-the quality of the final music replay as the standard. Therefore, the following first problem also arises: This is the unified problem of the technical testing of speakers and the evaluation of subjective sound quality.
1. About the measurement and listening of the speaker
Friends with certain HiFi experience will have such a consensus: This is the gap between the technical indicators of the speaker and the subjective audition.
Why is this happening? This is to start from the beginning, from the main technical indicators of the current speaker test.
Among the technical indicators of speakers, the most important ones are the following: this is the frequency range, withstand power, sensitivity and phase characteristics, and transient characteristics.
Frequency range, also known as frequency response, refers to the range of replay from low to high in the speaker. At some times, the frequency response range marked by a pair of small civilian speakers and a pair of large monitor speakers may be the same; however, the subjective listening experience is quite different. This in the end is why? Is the test inaccurate or someone deliberately made a fake? Under normal circumstances, the above speculations are not correct, but for other reasons.
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Optical Cable Cross Connection Cabinet
Cross Connection Cabinet, Optical Cable Cross Connection Cabinet, FDH, FOCC
NINGBO YULIANG TELECOM MUNICATIONS EQUIPMENT CO.,LTD. , https://www.yltelecom.com