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.
I have a Janis #W1 subwoofer with separate amp and crossover in oak veneer for sale, excellent condition, e-mail
A continuously variable phase control is as important as one for the crossover frequency.
well, my friend uses imf monitor IIIs Xed @ 40 w/krohn-heit filters w/ his re-quests. carl mentioned the phase contol, if i remeber correctly, muse had skubs with that control,which i always tjpught was the right direction to go. ive seen muse electronics at brooks berdan but never asked about the woofs.
I have the same 3 MLs & have had excellent results with a REL StadiumII.Personally I have reservations about the ability of 12 inch or larger woofers to keep up with the speed of the electrostatic panels. The REL with a 10 inch will keep pace & give you response down to 18HZ.
Your idea of a MUSE EIGHTEEN is an excellent one, they make personality cards for the Martin-Logan line. The Muse has been a top choice since it's introduction in the early 90's, a Stereophile Class A recommended component for many years,(dropped only as policy of Stereophile in not having been reviewed for a period of time) and is STILL UNSURPASSED in it's performance. Put most simply--"IT'S EVERY THING A SUB WAS MEANT TO BE." One problem with the Eighteen. With the exception of one I recently saw in the Audiogon Classifieds, you simply don't see owners putting them on the used market very often. Maybe this speaks volumes about the product?