I had some Wharfedale W-70 speakers, one woofer was blown, one tweeter was blown, the other woofer had severe voice coil rubbing at low frequencies. The mids were fine. Having a set of Boston Acoustic 10" woofers lying around, I found a pair of Infinity RS10's at the thrift store yesterday for $8.00. The Polycell tweeter fits perfectly in the same mount the Wharfedale purple tweeter did and the Boston Acoustics mount perfectly also. Now I have my Wharfedale Inifinty Acoustic speakers!!! They sound pretty darn good too.