Not sure this is the right forum, but probably more knowledgeable people here ... I'm looking for a H-T replacement speaker; 8 Ohm, 1.420" diameter, and 0.185" in thickness. Please don't suggest the OEM; they are DOA. The diameter is pretty critical; the speaker fits into a plastic insulator that has to fit just right. (I took apart one speaker mic, but that speaker is just a tad too big...) Thanks.