Hi People, Thanks

electronic crossover tri-amping recommendation

I'm tri-amplifying:

Single Ended Pentode 6550: bass, woofer 150w tru-sonic
300B Triode Single Ended: mids, Edgar Tractrix horn with
71A: Triode Single Ended: high, Selenium 220ti with
HM 17-25 selenium horn

crossover: please do not tease( Pyramid PR-3000) Bass 720HZ, Mids 720khz 6Khz- Hi>6KHZ

I am looking for a decent crossover to replace the Pyramid
I've seen Aschley , Behringer, Samson, which
recommend, Thanks