Probably better capacitors and better sq have trickled into lower budget speakers. Nothing extraordinary except maybe flat speakers, tweeters and perhaps in wall tech. You could always do an upgrade on your crossover network and have your surrounds redone soon. Get to keep your speakers longer and maybe get more even though upgrading your crossover can be costly depending on what you buy, who you source it from and whose does it.
butter and jelly please.
Home theater gladly not designed by ereed or bgtighe23. 65" JS9500, Marantz 7702MKII, Parasound Halo A31, ClassDaudio SDS470 4ch, RBH R56, 4xRBH R55, 2x RBH R5, Hsu VTF 2 MK 3 and VTF 3 for subwoofage, OnStage MS7701B mic stand with boom for improved Audussey XT32 calibrations. Listening space happily treated with 1" OC 703 rigid fiberglass. OPPO 203 or 205 soon.