Velodyne - SPL or HGS?


Curious which of the older SPL or HGS series is considered the better, partic. for 2-channel audio. I realize the DD series likely trumps them both, but as a current SPL (1000) owner, just curious.
mbump
I have two HGS-15 with SMS-1 bass manager in one setup, an HGS-10 in another. None has hiss nor any other unwanted sound. I think using an SMS-1 makes the HGS series equivalent to the DD series.

db
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.
I have had a velodyne HGS 18 for years and love it for 2 channel and HT. The amp went out after several years.Took it to Velodyne factory and they replaced the amp with a rebuilt amp in less than a hour. It did not cost a lot for the replacement. I have talked to velodyne several times and the support is great.