Ricky,
I've got a matched set (mains and subs) of RCF Active speakers;
12" Tops (2-way) that sound like 15" and a pair of 400w subs 15."
They are model RCF 200A and 800A. Had these since 1999. They do well for small to medium weddings and partys. I decided to keep them when I went for a larger set of speakers and subs, which are Yorkville.
Yorkville 750PB 15" (2-way) 750w and an subwoofer, Elite LS 700PB (2x10"). The subwoofer has since been traded up to a LS801PB 18" 1500w sub. Wish I had done it initially. The Yorkville 801 is plenty powerful for most events that I do...and that includes a 400-500 person formal dance or HS Prom. You do need to hear both the RCF and Yorkville products. I believe you will be pleased...but not with the price as they are a bit costly!
I decided to upgrade from the double 10" sub to the 18" sub because the York tops NX 750PB were kicking its but...it couldn't keep up. Now instead of buying a second LS801 18" sub, I believe that the RCF 21" may be the way to go. However, I don't like to mix product lines when it comes to speakers.
Decide on what size gigs you're going to do and what you have to transport your gear and then consider the size and power of the speakers and subs. I can tell you that the 2x10" sub did a pretty good job at (700w). One of the detractors was that it has a attached power cord. It's long enough, but you have to fold it up and secure it with the built in straps. On the plus side, it has a small foot print; 24"(d) x 24.5"(w) x 17.5" (high). It weighs in at 91#, but fits nicely under a banquet table and isn't that difficult to lift...for me anyway. I'm no spring chicken either.
Do let us know how your search ends up. I would do a side-by-side test of mains and subs together to see which really compliment one another.