Need info and valuation on PMC TB2i

I need some info on TB2i speakers from PMC if anyone is familiar with these. I plan on selling a pair in classifieds. I have looked at blue book, PMC website and tried contacting PMC support for general info. Google search is kind of thin with sales mainly in canadian dollars or pounds. I bought a pre-owned pair several years ago and never used them. I plan on selling them, but want some indication of current value. Any idea of the range? 9/10, no cosmetic flaws, low use. When were these manufactured? Thx!