Rel S/5 or JL Audio F112

Mike, I've never owned a REL sub, but have owned several others (Velodyne, Vandersteen, SVS, JL Audio) with my Wilson speakers.  The best I have found is the Seaton Submersive F2 that I am currently using.  Absolutely remarkable performance across the board.

Mike, I have owned older Rels and think they're terrific subs.  Currently I am using two JL F110 subs to support my Wilson Sophia 3's.  Although I have not done a comparison, I can't imagine needing anything more.  The 110's are very quick and go as deep as I need. Unless you live in an auditorium, they will shake your foundation when the home theater side of your system calls for it.
The only thing additionanal I would add when money allows is the JLcrossover, which would dial it in to perfection.  Best of luck. Mark

Markel,
I agree with you regarding the F110s. I have dual F110 V2s in a large room and don't see the need for anything else. In addition, I have a CR-1 and can tell you it makes a significant difference.

I own 2  rel s2 subs I enjoy them. I use them with 2 gato fm6 speakers from Denmark.  They do double duty HT and music 70/30 music. I enjoy them. They are great 

Thank you everyone! I had purchased a used R/3 here on audiogon that ended up not working on it's high level input so I will have to send it out to get fixed which got me thinking maybe it wasn't enough to match my Sophias so I thought of moving up to the S/5. Then I started looked at the JL Audio line.

Markel that was exactly the experience I was looking for. I am somewhat surprised that the F110 was a match for the Sophias but if I get two like ricred1 suggests, it would save me some money. I automatically thought the F112 was what I should be looking at.

There was a CR-1 on here not too long ago for a great price. I didn't know about it, but by the time I finished reading about it, someone scooped it up!