HERE IS A GREAT REPLACEMENT TWEETER FOR THE WHARFEDALE MODEL # EVP-X15 SPEAKER SYSTEM.TWEETER IS MODEL #D-533A.TWEETER IS IN GOOD CLEAN WORKING CONDITION.DCR=5.4 OHMS.DO  NOT CONNECT THIS TWEETER OR ANY TWEETER DIRECTLY TO A POWER AMPLIFIER ! WITHOUT A PROPER CROSS-OVER NETWORK OR THE TWEETER WILL BE SMOKED DOWN IN LESS THAN 1/2 SECOND..... THANKS FOR LOOKING,   JOEL