Help with Model and Pricing of Triad vintage 5.1 Surround Speakers

I have a set of Triad Speakers that I think are Triad Gold (F,C & R), Two Triad THX Rear Surround and a massive powered sub that I think are all from the mid-90's.  If someone is willing to help me with model match and pricing I can send pictures of the speakers.  

Here are the serial numbers:
Front (025962, 025963, 025964)
Rear (025960, 025961)

Thanks for any help.

Bryan Williams