Anyone know about/used Crossfire Db3 12"?

[j-roadtatts 1,129]

I am looking at a pair of used Crossfire Db3 12"s, for my nephews ride. Not a brand I am familiar with, so was hoping someone had experience with them. The gentleman selling them only wants $50 for the pair, so right in the price range I want to spend on the kid. I know they are subs and will make sound, just making sure they are not  majorly flawed by design or anything.  Thanks in advance.

[1975Pontiac400 0]

Did you get them.