No, Dan; the PSW111 doesn't have a high-pass filter on the speaker level outputs. If you're referring to what they term connection "Option #2", this is simply the usual full-range pass through to main speakers when they're connected in that fashion. This is often misunderstood to mean that subs with speaker-level outputs have an internal crossover which is adjusted by using the frequency dial on the back of the sub(which often is labeled "crossover"). That control is only for a low-pass filter on the sub itself and has no effect on the main speakers, even when they're connected through the sub; there is no "crossover". In the past some of the Polk subs did have a separate fixed-frequency high-pass filter on the speaker level outputs, but this had nothing to do with the frequency control on the sub.
