Like you and many others, I began this quest in the early 80s with a receiver and decent speakers. Many amplifiers and speakers later, the hobby eventually led me to working with Merlin International speakers, and then a speaker business of my own.
After 4 or 5 years in business, and numerous speaker designs and builds later that were mostly value oriented, I made something more along the lines of a "best effort" speaker using Focal kevlar woofer and midbass drivers in a transmission line, and Seas tweeters with top shelf crossover components (including Convergent capacitors). I tweaked that design until I loved it ~ 1995. I thought they were really good then, but had no idea that I’d feel even more strongly about them 30+ years later. They’ve improved with every system upgrade and tweak I’ve made. After bi-amping the system with SS on the woofers, and tube monoblocks up top, all I want to do is listen now. 😎
Hopefully these links will work: