Digital / DSP Processing
DSP processing means audio adjustments are performed digitally using digital signal processing.
An analogue input must be converted to digital for digital processing, and an analogue output requires conversion back. A device with digital controls does not necessarily process the audio digitally.
Digital / DSP Processing — Crossover
In an active crossover, DSP can implement the filters that divide audio into frequency bands for separate amplifier or driver paths. Depending on the design, it can also provide adjustments such as output level, delay or equalization.
Compare the actual available filter and adjustment functions rather than assuming every DSP crossover includes them all. Check the input and output formats needed for the system. DSP availability alone does not establish processing latency, maximum sample rate or the number of independently adjustable outputs.
Digital / DSP Processing — Equalizer
In an equalizer, DSP applies the specified frequency-response adjustments to the digital signal. Software controls or stored settings can make configurations easier to recall, but the available features depend on the unit.
Compare filter types, adjustment ranges, channel controls and supported signal formats separately. A digital display or remote-control app does not confirm a digital audio path. If timing matters in the system, check the stated processing latency rather than inferring it from the presence of DSP.