Old Fart at Play wrote:

In the analogue world:

You can keep the low-pass and high-pass outputs in phase
with a 4th-order filter. I got a cheap Soundtech active crossover,
which does this, on ebay. It's easy enough to build one though.

I'll have a look for ready-made active crossovers and see how much the cost.


There's some interesting stuff at Siegfried Linkwitz's site:
http://www.linkwitzlab.com

That looks like a good read...


--
Wally
www.artbywally.com
www.wally.myby.co.uk/music