The Dayton Audio DSPB-K DSP preamp adds powerful DSP processing to any amplifier or project! It’s preconfigured to adjust high/low pass filters and gain settings with the onboard potentiometers, but unlock its full potential by combining it with the Dayton Audio KPX (sold separately). Explore almost limitless possibilities of precise EQ, filters, bass processing, time alignment and so much more with the SigmaStudio development tool. All of this potential comes in a package smaller than most passive crossover circuits, even when combined with the DSPB-KE (sold separately), which adds all of the RCA and 3.5mm connections appropriate for making a 2.1 system.