I think if you aren't getting subs, then a pair of Quattro's or Trio's would be a better move.
I own the 3a sigs and paired them with 2w subs. The 3a sigs by themselves sound pretty good, but a pair of subs really fleshes them out.
You could also buy a pair of HSU subs (or at least one). They come up for sale on Agon or Ebay. They are considerably less expensive and provide decent bass compared to the Vandy subs.
As I said before, you should contact Johnny Rutan at Audioconnections. He won't steer you wrong.
I own the 3a sigs and paired them with 2w subs. The 3a sigs by themselves sound pretty good, but a pair of subs really fleshes them out.
You could also buy a pair of HSU subs (or at least one). They come up for sale on Agon or Ebay. They are considerably less expensive and provide decent bass compared to the Vandy subs.
As I said before, you should contact Johnny Rutan at Audioconnections. He won't steer you wrong.