JL F113 vrs SVS SB13

Hi all, I am looking to upgrade my sub situation.  Does anyone have experience with these two brands and can give a comparison?  I have heard JL113 and currently own a RELB1.  But need a larger driver, and more power to really get down low and obtain room lock.  Also will most likely get two that match.  I can get two SVS for less than one JL new!  But have never heard them.  Do they compare? This is for 2 ch audio as well to augment my Wilson Watt Puppies .   Thank you

PS there is a new SVS soon to be released with a 16" driver...for 2k