i am one of those who owned the dca 4", for the music u intend to play don't wait any longer, the dca 4" sound wonderful with the daring amps , i been playing with them for years now in a non folded horn i designed myself and i never use a sub , and they are my reference speaker

i still have coral flat 6, beta 6 , 8a 40 and some other coral, dca 5.5 , tangbang bamboo 4" and some other Japanese 4" to 5" driver but i choose dca 4" so why wait ????