I have genesis 320 and I blew tweeters, purchased used ones on ebay but they seemed dull.I then got human tweeters wow what a difference.. Very nice build quality.. An excellant upgrade..My 4.5 mids has radial cracking and 1 of the 4 8 inch woofs cuffed.So I said screw it and ordered all new 4.5 and 8 inch woofers.. Geting them today.. I will rebuild the old woofs for a project maybe.. I could not pass up on new speakers for them.. 4 years ago replaced all the capacitors with dayton audio poly, a fun easy project to do. Not expensive either.. you can buy a cheap testor at amazon or ebay to test caps then match them up.. for equal capacitance etc.. ( But you will love the new tweeters.. I have originals stored.. ) I use mine in a surround system owned since new..