I have only had 3 good subs in my house. I never owned them just listened. I had ctown's STF-3 hooked up at one time, the EP400 and a couple of weeks ago the Paradigm DSP-3100, the Velodyne wasn't too bad but I wouldn't put it in the same league as the HSU or the Paradigm for that matter, as an all around sub.

The only sub I have ever owned is my 13 yr old Costco special.

I am looking forward to round 2 of the sub comparison. I just hope we can get together before I have to send it back, if it doesn't stand up to the Axioms.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70