If you have a large room...go with a pair of subs. Place them near the mains and the blend will be seamless. While I have never played around with the Velodyne DD15...most agree that it's a pretty darn good sub.
The fact that you could not get it to blend properly for only the bottom octave (20hz-40hz) hints at one of two things...you did not set it up properly, or...your room is so large that you need two subs.
I use a pair of VMPS subs with my Apogee Duetta Signatures...With a lot of trial, the blend is seamless in my fairly large room.
Dave
The fact that you could not get it to blend properly for only the bottom octave (20hz-40hz) hints at one of two things...you did not set it up properly, or...your room is so large that you need two subs.
I use a pair of VMPS subs with my Apogee Duetta Signatures...With a lot of trial, the blend is seamless in my fairly large room.
Dave