Adding another 18 Question

[texan972 0]

I love my Sub and plan on purchasing another one but ever since i purchased my 18" SSD back in December i sort of drifted away from the forum and keeping up to date with everything that was going on with FI. I have read different articles saying there are new lines for the BTL and i think BL but not sure on the Q and SSD. Well anyways i plan on purchasing another 18" SSD soon and my first question is, is there a new line of SSD subs and if there is my second question is, will there be a problem if an old SSD is in the same box as a new one.