Von Schweikert Subwoofers

I have auditioned the VRS1 in my home and thought it was a good performer. I can't say I am personally familiar with the other two you mention. I ended up going with Martin Logan Grotto sub which I think is an excellent performer at a great price.

Strickly music?
Is the VRS-1 the small one.?
That's what I have. Had it about 1 1/2 years.
Fast,Fast,Fast.Natural sounding.
Perfect extension for any mains I have used it with.
The easiest to set-up of any sub.
Matches great with my Spendor FL-6 and Maggie' 1.6 qr.
Peter D.

I have it and love it for both HT and multi-channel music. As Peterd said, super fast. Blends perfectly with the rest of my VSA set-up.

I have the Velodyne DD10, and use it in a less than ideal room (12 x12, opening to a small sunparlor). Its used for 2-channel only and it adds a layer of warmth and complexity my monitors were missing. The software is incredible and easy to use. It greatly reduced my room problems in the 40-60hz range, while still having a full, rich base sound.

The dd10 or dd12 is a great choice in a small sub.