I have the Velodyne SPL 1500 and I find it an enjoyable sub for HT or music. I'm using it for my music system now as I my desire for HT is dwindling. I got the SPL 1500 almost new from a reputable online e-tailer at a really good price so I jumped on it. Years ago I spoke to an engineer at Velodyne and he said that the older HGS series of subs is basically the same as the DD line without the eq and remote.
