I now am aware that the K series does have a filter for bass roll off...unfortunately it filters at 100Hz..Our Yorkvilles filter at 60 Hz..

I would normally think that clarity in the sub woofer range will be missed between 60-100Hz..
I also notice the sub woofer only goes down to 48Hz...Now I see why one reviewer says they aren't great for the dance floor..

If you want loud...the K series delivers...

I will have to get together with Dave...so he can show me ...why....he loves them..