I tried the DLS-5000R during my search for a sub and found it to be very boomy. I suspect with the right amount of tweaking the 4000R and one of Axioms subs could play nice together, conversely you could find the velodyne just muddying up the sound. Either way getting a new sub sounds like a great idea and then try the velo out with what ever you buy and then run the system with the best sound set up.


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