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一、概述在扬声器系统中应用倒相箱技术以获得较好的低频响应已有多年的历史。倒相箱在谐振频率附近给予扬声器纸盆的声负载阻抗最大。虽然在这频率上由于倒相孔的辐射作用,使得辐射声压很高,但纸盆振幅却最小,这就避免了扬声器在大振幅信号下所引起的低频失真。在倒相箱扬声器系统设计中,在给定的箱谐振频率下,对扬声器的谐振频率的选择,与闭箱扬声器系统比较可采用谐振频率较高的、价格便宜、性能稳定且灵敏度高的纸盆扬声器,对于降低系统成本、提高系统性能都具有实际价值。
First, an overview In the speaker system using inverted box technology to get a better low-frequency response has many years of history. The inverted box gives the loudspeaker cone near the resonance frequency the acoustic load impedance of the largest. Although the frequency of radiation due to the inverted hole, making the radiation sound pressure is high, but the cone amplitude is minimal, which avoids the speaker under high-amplitude signals caused by low-frequency distortion. In the inverter box speaker system design, at a given box resonant frequency, the choice of the resonant frequency of the speaker, compared with the closed-box speaker system can be higher resonant frequency, cheap, stable performance and high sensitivity of the paper Speakers, speakers, for reducing system costs and improve system performance are of real value.