I wouldn't buy a powered loudspeaker from a company that no longer services them or provides warranty service....stick to something with good warranty, and run some good room correction software and it will sound as good if not better than some old Velos.
velodyne dd plus? still considered best of the best?
are these subs still comparable to the top subs today for music and sound quality? I was thinking about getting a used one, the resale value puts them around the same price for me as a new svs sealed 3000 series, new ryhmik , new rel t7i, or used jl audio e series