I've got 6 canton pullman 10" drivers. These were made back in the mid to early 90's and have never been used. You won't be able to find any info on them on the web because they aren't made anymore. Canton is still around and makes some really nice home audio equipment. If you are interested send me a pm and we will see what we can work out and I'll get you a pic. I wired them up to my home receiver the other day just to see how high they would extend in the frequency range. Basically I ran them full range and they seemed to go up pretty high. I can't tell you an exact frequency because I don't have any measuring equipment and my ears just aren't that good LOL They seem to be built like a beefy PA style speaker.