Does a Passive Crossover Have Signal Delay?

[Ron Texas]

Does a typical passive crossover network of resistors, capacitors and inductors delay the signal? What would be the typical delay in milliseconds for a 12 dB/octave network? Has anyone measured this for the original LS50 loudspeaker?

 

[mhardy6647]

Well... sort of, in the sense of frequency-dependent phase shifts depending on the XO topology.

 

[Sokel]

Do you want to intentionally delay like with an allpass filter,or in general?

Here's some great info that helped me (as a newbie) as it has good examples:

Compensate for Delay and Distortion Introduced by Filters - MATLAB & Simulink

Filtering a signal introduces a delay.

www.mathworks.com

 

[fpitas]

What would be the typical delay in milliseconds for a 12 dB/octave network?

That will depend on the type of filter: Butterworth, LR2 etc. as well as the -3dB (cutoff) frequency.

For example, for Butterworth: https://en.wikipedia.org/wiki/Butterworth_filter

Butterworth filter - Wikipedia

en.wikipedia.org

 

[Ron Texas]

What I'm looking for is a ballpark number for a typical 12 dB/octave passive filter found in a bookshelf filter. Nothing fancy.