I blew the woofer in one of my old Mirage 290IS speakers. The replacement from Mirage (Klipsh owns them now) does not fit. I can't afford to replace these great sounding speakers. What do you think the chances are that I can get good sound from a replacement driver from Parts Express? I suppose I would need two drivers to match in both my speakers. I have asked the manufacturer for the specifications (the speaker I removed says "4 ohms" on the side: the most important spec), but I'm afraid that the specs they send me will be for the replacement driver which is not the right driver.