LOUDSPEAKER ENCLOSURE DESIGN （扬声器外壳设计,）.pdf

Reprinted from WiI~SSWQrid January and February 1956 LOUDSPEAKER ENCLOSURE DESIGN by E J Jordan GOODMANS INDUSTRIES LTD AX IOM WORKS, WEMBLEY, MIDDX. rei: WEMbloy 1200 I LOUDSPEAKER ENCLOSURE DESIGN ·By E. J. JORDAN* I.-Alternative Methods Their Advantages and Disadvantages IN the first part of this article the theory under- components of the circuit should be high relative lying the prin cipal types of loudspeaker enclosure is to the reactive components. This is not so in practice, since at frequencies where the wavelength reviewed, and formula associated with the major is longer than twice the cone diameter the value of designfactors are given. R, falls as the frequency is lowered. The reactance • This will be followed later by a discussion of of M, also falls, however, and the increasing velocity some recent developments in which an improved resulting from this may largely compensate for the fall in R, to the extent that the radiation remains low-frequency perfor