I have a pair of the actives that are hooked up to my DAW. They sound pretty good, but very lacking in low-end thump. I have not added a sub, but Tannoy makes a sub that apparentally matches well with the Reveals.
My monitors are still fairly new, I have liked them so far. The actives can get quite loud. Pay attention to the included directions as placement is critical! I had to rearrange my whole DAW desk to enable a decent spot for the monitors!
I have absolutely no complaints except lack of bass, and you will find this problem with nearly every monitor in this general prioce range! Everyone reccomends the cocentric Tannoys, but they are pricey! I have heard a pair in a local studio, and they sure sound sweet. I just don't need to spend that much on my home DAW!
Hope this helps!