| Precision audio crossovers
can be easily designed, both for analog passive/active or digital. In
this example the measured SPL response for each of the three transducers
in the prototype enclosure were imported into the program, and loaded
into the three Voltage Generators.
Likewise, the complex Impedance
curves for each transducer were imported and loaded into the three Z components,
representing the actual network loads. Two Buffer components (T=130uS
& T=450uS) were added after the woofer and midrange generators, to
model the true time locations of the transducers. A Summer component is
used at the three outputs to sum the complex signals into the system response.
The networks for all three sections
were then designed and optimized to 4th order Butterworth-6dB targets,
and then the final combined response again optimized for smoother crossover
regions. All of the Inductors include losses for parasitic resistance
and capacitance. |