I have been making speakers since the 70's (I'm an old fart of 77). My current speaker systems are a CBT36K for my home theater and a LX521.4 for my personal listening. In my early days I've made many Heathkits also Dynaco Mark III, PAT 5, and a Luxman kit tube integrated amplifier. I now proselytize for active crossovers (I am using miniDSP Flex 8 in both systems). I preach the gospel of Linkwitz and Keele (obvious from my choice of speakers).