Most powered subwoofers for home use have the full-range-signal inputs on them - you run the full-range signal from your source into the subwoofer, then the crossover in the sub does the work of splitting off the low frequency - and the subwoofer has the outputs for the mains. That's how mine is here at home, and it's how the Polk that is 95$ works. The Behringer Truth monitors would get the signal from the Polk subwoofer, sans the lowest stuff that the subwoofer handles, and all is well.

The problem with the bazooka, is that it's not designed to work that way - it's designed to be fed a 'subwoofer' signal that only contains low frequencies. At least last time I looked into one (admittedly, about 20 years ago! - they were some of the first car-audio subs that you could pick up without having to build your own).

That's also the issue with using the bass amplifier - even with the RCA inputs on it - it should only be fed a 'sub' signal, already crossed over. Gotta go buy a crossover, probably in the 100$ range, to repurpose the Behringer bass amp for something it's not really designed to do. Why not just buy something actually designed for Ryszard's actual purpose?

Back to normal powered subwoofers: the craigslist ad for the Polk has one photo of the panel showing both the full range input, the variable crossover control, and the unamplified cross-ed over outputs that you would connect to the Behringers.

What am I missing here?

Last edited by rockstar_not; 07/27/12 06:09 AM.
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