I am looking to build a 410 to use with my home built tube heads. My amps range from 50w to 200w. For reference I have a b18 style head. I have a 100w blackface style head and a 200w sunn style. Previously I have been using a pair of tl606's one with a 15l and one with a 15b. I Ike the low end throb of the big drivers, but I am looking for a tighter sound now. I was thinking about a quad of BP102's in a 3.25ft sealed enclosure. Any other suggestions?