Well I did the deal. I am using an Inuke 6000 , which has been performing very well so far as my sub only amp. The Yorkies always performed well, I can't and will not complain about them. they always rocked! I was just looking for more punch and a tighter sound. The JBLs deliver just that, and they are a little easier to handle. So far I am very happy that I did the deal...I will let you know at the end of our festival season if I still feel the same way.