sub to match martin logans

Any advice regarding which subwoofer might best match martin logan quest z's, logos center? Have been told that Paradigm Ref 15 is best match for music (my main focus) and home theater. Also have heard that genesis 900 and muse 18 are good matches.
Gee maybe you have the same audio store I do. I was sold a a paradigm 15 servo to go with my SL-3 and Aerius speakers. I have a vandersteen center (for now). I am looking to upgrade to a cinema center. The crossover with the paradigm is great for adjusting the subs output to match music or video. My sub is in a 14 by 26 foot room and seems to have sufficient output
I have a Janis #W1 subwoofer with separate amp and crossover in oak veneer for sale, excellent condition, e-mail