A download of the Syzygy application will give you a clear description of their DSP design. The 120 or 80Hz crossover settings your referring to sound like a surround receivers LF/Sub bass management settings.
If your electronics offer a separate pair of left and right RCA/line outputs they're what you'd use to connect to a wireless transmitter or directly to the subwoofer.
Many powered subwoofers provide crossover adjustment as do a few preamplifiers. Since DSP can vary greatly crossover adjustment can range from a simple variable dial to a wide range of multi frequency bands of analog filters or digital parameters.
This level of detailed crossover adjustment has been included on a few powered subwoofers and in the aftermarket for over a decade. To the best of my knowledge reviewers have only commented on the ease and improvement of a products auto equalization but little or nothing on the potential of a products manual adjustments. Its not a widely used tool but the effort and results can be quite satisfying.
Thanks to erik_squires whose been commenting on his methods.
If your electronics offer a separate pair of left and right RCA/line outputs they're what you'd use to connect to a wireless transmitter or directly to the subwoofer.
Many powered subwoofers provide crossover adjustment as do a few preamplifiers. Since DSP can vary greatly crossover adjustment can range from a simple variable dial to a wide range of multi frequency bands of analog filters or digital parameters.
This level of detailed crossover adjustment has been included on a few powered subwoofers and in the aftermarket for over a decade. To the best of my knowledge reviewers have only commented on the ease and improvement of a products auto equalization but little or nothing on the potential of a products manual adjustments. Its not a widely used tool but the effort and results can be quite satisfying.
Thanks to erik_squires whose been commenting on his methods.