Sub w/a CJ ET3 SE

I've got an CJ ET3, too
Velodyne F-1500, old one, but goody

I used a splitter adapter ( solid piece from audio quest & works well

bass is now seamless 

Jeff

I better add a few notes.......

If you have a Johnny One note sub
Try DIRAC room software
If you have a "one note" room node, my guess is it will be the same unless new sub has frequency adjustments 

The Dirac & A cheap USB mic really is amazing what it can do

Amarra has a trial you can try 
all you need is a $65 USB mic and you can hear it yourself 

I know the frustration of " one note" bass

jeff

I was talking to my dealer yesterday and he also mentioned beside SVS and the Totem Kin the best option might be a Paradigm Monitor 8 or 10 sub w/a PBK kit. Any thoughts on this.