Have two GE boomboxes with 4-5 watt paper speakers, measuring 4.75" diag to mounting hole centers. That's not a common size. I didn't want to spend $50-60 for car speakers that I would have to modify something to make fit, on a boombox outputting 3 watts, so DYNAVOX is the place to find pincushion shape paper full range speakers with the correct dimensions. They are 10 watt replacements, 100-10khz. Speakers are about $5. This is to fit GE 3-5263,3-5262, etc. Probably some others. The speakers wear out from deterioration, and because the loudness compensation gives too much bass boost. More than the speakers were really made for. This place also sells nice 4" speakers, a little heavier duty, and some other sizes. Cheap.