Depends on what your going to use them for, if there for PA, musical insturment or if you listen to your music at high volumes I'd get them re-done with the EV surrounds, there inpregnated cloth accordian surrounds. If you're using low power or just for normal stereo listening you can maybe use the foam ones like Wayne suggested. But then your T/S parameters won't match what EV spec'ed them at. Another thing to do is check around at your local recone shop. HTH Bill W.