I'm having trouble finding a newer model Polk sub thats similar in performance to my PSW650. A good friend of mine loves my sub and I want to get him a similar one for christmas. It doesn't have to be new, but I don't want to spend any more than the $200 I gave for the 650. The 111 has similar specs, but only has one 8" driver compared to two 10" 's in the 650. Will this smaller sub compare to the 650? Or is there another sub in the $200 - $300 range that will outperform my PSW650? If I could find something better, I would give him my sub and keep the better one. Any advice would be greatly appreciated.