Originally Posted by jonathanc
If you play loud, enough to clip your receiver, then go with an amp. I wouldn't go with typical consumer audio Amps as they're overpriced and underpowered. Go for pro audio amps. They're more powerful and stable down to 2ohms, which those rf-7s will like.
+1 on the advice.
I added an external receiver to my large fronts, and, man! Front stage opened up . . . Like double the power and clarity. Used my Denon AVR as a preamp and added an 1970s Phase Linear 400 (with old timey lighted meters) I recapped . . . Looks amazing and, now, front stage sounds amazing.
I would not hesitate to add an external amp to power your RF7s, if you AVR can act as a preamp too.
The problem with most RF7s is that many owners simply under power the, and never really know they are doing that.
Before buying and trying, borrow a friend's external amp and interconnecting cable and see if you like it before shelling out more cash.