CopperTom

I'm only looking to spend in the $300 - $400 range so that's why I only listed those 3 choices. If there's something I'm overlooking in that price range that is a better option, please let me know.

Other than not matching the set, is there something deficient with the RB-51's?

I'm looking for a new pair of bookshelf speakers since my F-3s are too obtrusive for my living room. The primary use of my speakers are for both TV / BluRays and for listening to music. They'll be paired with a C-3 and SUB-10. I'm having a tough time deciding between B-3, VB-15 and RB-51. I know what to expect from the B-3s since they're similar to my F-3s, but I don't want to overlook the VB-15 or RB-51 just because I'm not familar with those products. I'd appreciate some guidance. Thanks!

The gain knob isn't loose. If it's the amp, the Klipsch warranty doesn't cover that, right? Is it worth replacing?

Yesterday, while listening to some music, my SUB-10 got extremly bassy - it started shaking the entire house. Even when I turned my receiver to very low volume levels, the SUB-10 continued to thump away as if I still had the volume extremely high. I unplugged the SUB overnight with no luck. I changed the cable with no luck. I tried the subwoofer from my "other" set-up and the subwoofer worked fine. I placed my SUB-10 in the "other" set-up and it still thumping away at ultra-bass levels. Currently, I have the gain at the minimum level and I can feel the bass in the next room. Is there anything I can try to alleviate this?