active bass

Background: I've been contemplating ways to build a better Speaker... Not that I expect to, but I want to. Better than what, though? My current mains are Phil 3s, among the last pairs built during 2019. I took delivery in May that year. I have no regrets buying these: they are wonderful...

I got the multichannel with Bass Control. All in all I have a 3.1 channel system with my LR speakers having active bass section. Signal chain HTPC (Dirac + Win11) -> topping dm7(usb) -> amps How do I split the L to L + LSub etc ? Like an external crossover in Dirac ?. I am starting with...