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X-over question

Some speaker manufacturers advocate low order slopes in their (passive) speaker designs in order to preserve phase relationships. Conversely, the new digital room correction/x-overs (DEQX, Tact, Lyngdorf) allow very high order slopes because the digital crosses allow this approach in the digital domain - purportedly without impacting phase. My question:

What about active, line level X-overs in an analog, bi-amped configuration. Can anyone describe the relationship between slope and phase for this type of x-over?

Thanks,

Marty
martykl
martykl OP
3,578 posts
 
Just bumping this up in hopes of an answer. Thanks.

Marty
jburidan
803 posts
 
http://sound.westhost.com/

lenardaudio.com

The topic is endlessly complex. Recommend you read the articles at the above sites. Then talk to Phil Marchand who makes crossovers. I use his XM-44, and he helped me get the slopes right.
shadorne's avatar
Ag insider logo xs@2x
shadorne
7,477 posts
 
Marty,

Your in the wrong forum for all the pratical answers on this. Try this DIY forum.

FWIW - to briefly answer your question - with an active analog filter you can control pretty much what you want - phase accuracy, damping, quality factor, slope - all by the design. Digital filtering is even more powerful and extremely flexible (big advantage in prototyping) but may introduce latency and is expensive (computing power needed). If you are building a few speakers then I'd go digital as the extra expense is worth it. If you are building many speakers then it makes most sense to finalize the protyotyping using digital filters and then design a good (but cheaper) active filter.
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