Velodyne DD12 or DD15

Rwwear,

"The only problem with the SMS is it bypasses the servo control if your sub has one."

I'm not sure I understand your comment. High gain servo control is a major feature of the HGS and presumably DD series of Velodyne subs. I dropped my HGS-15 off for repair at their facility south of San Jose (it's actually in a nice little town quite a bit south of San Jose, but I cant recall the name) and my brief tour of the facility left me with the impression that subs may be a sideline that capitalizes on their high-tech business -- I had the feeling I had returned after all these years to another Stanford spin-off. I can't imagine that Velodyne would design an SMS-1 that would interfere with their HGS function.

db

I am a Velodyne dealer and had planned to use an SMS with my DD-15 and was warned against it by the company rep. He told me it would bypass the servo control. All of Velodynes subs do not have servo control as well as many other makes. I don't suppose Velodyne thinks you need the SMS with the DD series.

Rwwear,

I think the DD series was designed to incorporate the functions of the SMS-1 by providing a built-in DSP for LF room correction. Thus, I assume it in no way interferes with the HGS function, but using a DD series with an SMS-1 would duplicate the DSP, and that would be unwise.

db

You are probably correct db.