Velodyne DD12 or DD15

I use an HGS-15 with a SMS-1 that I think was Velodyne's approach to room correction before the DD series. Believe me, the HGS-15/SMS-1 pair can deliver that more felt than heard experience when a low organ pedal note is invoked and pressurize your chest when an explosion occurs in a film. Our media room is 19 X 14 X 8. The sub integrates seamlessly, and you are only aware of its contribution when it does something you know the mains can't possibly be doing, like a subtle vibration or shaking the room. The introduction of the organ in a good recording of Saint Saen's 3rd symphony is a thrill. I use an 80 Hz crossover.

db

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

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

Fplanner2010,

This is a bit off topic, but what kind of imaging do you get with all that equipment between the mains? My experience has been that especially depth of soundstage increased as I removed clutter from between my speakers. The move to front projection had the greatest effect.

db