1. What is the history of these? There are the originals, the platinums, the silvers, the platimum MK4. How does one know which is which. The set I looked at are BLACK and a tad under 6 feet tall. I would guess about 5' 6". From what I see, I do not think these are the MK4s, I did not see any adjustments on the bidding post plate
2. Are the woofers prone to foam rot. Is this something you are expected to replace for something this age.
3. They appear to be difficult to sell. I see a number of ads where these things just languished. I am worry that if I cannot make these work, I am stuck with 2 huge speakers.
Thanks for all the feedback in advance.