Best subwoofer under $1,500 for Magnepan 3.6R


I know that this topic has been covered here in depth over the years and I've already gone back and read those threads in the archives some of which are quite old.

I'm looking to add a powered subwoofer to my Magnepan 3.6R speaker set up which is used primarily for playing 2-channel and 5.1-channel acoutsic Jazz and electric Rock (Rush, Pink Floyd etc...) I use a pair of Magnepan MG MC1 speakers for the surround channels and an Magnepan CC3 center channel speaker. My room size is 19 feet by 12 feet in size.

I've read great things about REL, Velodyne etc.. but most of those are too expensive for my budget. I'm looking for a subwoofer that will work well with my all Magnepan speaker set up under $1,500 new or used.

I appreciate any and all advice that anyone is willing to offer.
southernphoenix
Get the best JL audio you can afford. An F110 can be had easily for 1,500 used. If you are patient you could pick up a F112 for around $1,500 - you will not get more sub for the money than that.
Thanks to everyone who responded to my question with so much detail and information, I really appreciate it.

My thanks to "Jallen" for recommending the James Loudspeaker EMB 1000. This looks like the way I will be going.

Has anyone else here ever used the James EMB series subs with Maggies?
I have a James EMB 1500 that I have had in storage for some time. Barely used. Did you end up getting the EMB 1000?