A digital crossovers is a crossover placed before the DAC, the analog to digital conversion.
A digital crossover makes the crossover very accurate. A passive crossover uses components with a precision normally of 5 % or 1 %.
A higher accuracy makes the sound from the left and right loudspeakers more coherent, which improves the soundstage.
Floating-point digital crossovers give extra possibilities for:
- Correcting irregularities in the frequency response of the drivers
- Time alignment of drivers and loudspeakers
- Phase correction of drivers and loudspeakers
- And for room correction, see next section