In January 1961, there was an interesting article in “Popular Electronics” – Jim Kyle’s “sweet six” (editor’s note: the name of a loudspeaker system designed and manufactured by Jim Kyle in 1961). Then Kyle published his second article entitled “sweeter with a weeter” in April 1961. You can find some discussions about the original article on the audiokarma forum.
The basic idea of Kyle’s article is to use a series of small speakers connected into one entity to develop high fidelity speakers. Each speaker only carries a small amount of power, and uses a combination of 16 interconnected speakers, which are connected with the direction of speaker cone deflection with the same voltage phase. The result is that the speaker system can carry high power without distortion. In addition, the cabinet that can install loudspeaker is done very shallow, if the space of sitting room is limited, this can be an advantage.
In this paper, some suggested wiring diagrams are provided, but one possibility is ignored (Figure 1).
Fig. 116 the loudspeakers can be interconnected so that their composite impedance at the two terminals will be the same as that of the single speaker itself.
For example, if each speaker presents 8 Ω If the impedance of voice coil is less than 10%, the composite speaker composed of 16 speakers will also show the same 8 Ω。
In addition, I can’t see why “sweet16” is a particularly magical number for its basic idea, at least except for the possible connection with debutante, which refers to the young women of the upper class who first set foot in society, especially the old England. I think we can make three by three or five by five arrays and get roughly the same results.
The wiring diagram is shown in Figure 2.
Figure 2 can make arrays of three times three or five times five and get almost the same results.
In each case, the composite impedance will be the same as the individual impedance of each speaker voice coil. As for the name or the choice of name, well, let the readers decide!