I Have own several klipsch subs. Sub-10, Sub-12, XW300D, SW-112.....All of those subs were good to me. I loved the output of the Sub-12, the articulate bass of the SW-112, and the was the XW300D, was able to dig extremely Deep with just a 8" sealed sub.
I have been wanted to purchase the R115-SW, however I was waiting on a slight sale around the holidays. Supply was low and I was able to obtain one for about 180 bucks off MRSP.
OMG, is all I could say. This subs has all the positives from my prior subs, none of the negatives. It is large, but on purpose. The sheer, output alone, and I haven't and never will need to turn it up pass the half way mark on the gain controller. Frequencies in the mid to low 20s where the other subs attempted to reproduce this sub laughs and asks for more. Articulate/Accurate/beautiful/Large/LOUD. Pairs extremely well with the RF-82ii's. This one is a keeper, and I do not feel like I overpaid for a sub. Extremely happy im sure other owners are as well.
Kudos Klipsch, on this one.
One recommendations is to hold UPS accountable for shipping this heavy beast. The box that it came in was tattered, and had many holes, and the Styrofoam was severely damaged, luckily the sub didn't have any scratches dents or dings.