In Reply to: RE: Series connection of drivers in hi-fi speakers? posted by jsch3 on September 29, 2014 at 06:27:26:
. . . such as that used in the linked speakers, is a whole different situation from the OP's speakers, which apparently have two midrange drivers wired in series and connected to the bandpass section of a more conventional parallel crossover.
The series crossover, in its simplest form, has the tweeter and midbass driver wired in series with each other, and the reactive components in parallel with the individual drivers: the inductor shunts across the tweeter, and the capacitor across the midbass. This yields a first-order electrical transfer function, similar to the more common situation of a cap in series with the tweeter, a coil in series with the woofer, and both legs of the circuit in parallel. Steeper orders may be achieved by adding appropriate additional components in series and parallel with this arrangement. The linked article provides a good comparison.
Series crossovers have been around for a very long time -- Bud Fried among others favored them, and Jeff Bagby used one in his Fried-inspired "Tributes" design -- but because of the increased interaction between highpass and lowpass components, and the way everything affects everything else, they are much more difficult to get right. Hence, perhaps, the small but enthusiastic cult following among some speaker designers.
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Follow Ups
- A true "series crossover" . . . - Brian H P 10:50:23 09/29/14 (1)
- RE: A true "series crossover" . . . - neolith 08:47:23 10/01/14 (0)