Go Active Crossover or Upgrade existing XOs?

Personally their wax paper foil inductors are the best,
but for bass I prefer a open foil coil depending on application
locally cannot get them I order from Hifi connection in theUK
fedex 3 day is only $30, and they carry the Path audio resistors 
,parts connecxion in Canada has a25% sale  so if they have the values you need in stock go there ,and overnight saver,ups is only $15 under 3-4 lbs for specifics email be I will try to assist you.

The Bryston room at RMAF was bi-amped active external crossover as
well. System sounded great.


I had forgotten about the Levinson HQD system: Hartley, Quad, Dahlquist.  Amazing system, you have to have the dedicated space for it though, it was rather large to say the least.

Digital cross-overs are unlimited, though stock cross-overs and firmware only touch on what is possible with advanced signal processing which can do things that no analog cross-over, active or passive could ever do, especially integrated in design with a purpose built amplifier.

Surely they have no side-affects?

With a digital input, only the side effects you intend, which any speaker is going to greatly swamp.

atdavid

With a digital input, only the side effects you intend, which any speaker is going to greatly swamp

There is no crossover that is perfect, not even an active digital crossover. Although speaker systems almost always have distortion many, many times greater than a quality audio component, that does not mean that the speaker system will not reveal faults in those components. What you wrote is a bit ambiguous, so perhaps that’s not what you intended to say.