There have been some advances in materials. Carbon fiber and Kevlar have been successfully used, for example. Carbon nanotubes are used by a few, although there are other materials that exhibit the same properties. Meanwhile, some who have tried metal dome tweeters have moved away from them.
Cabinet design and construction have evolved as well - they're not just making simple boxes. Crossovers, internal wiring, binding posts and other hardware are given more attention, and rightfully so.
Cabinet design and construction have evolved as well - they're not just making simple boxes. Crossovers, internal wiring, binding posts and other hardware are given more attention, and rightfully so.