Rel B2 or JL Audio f 112


Hello
I need help with my set up.
I have Paradigms Studio 20v5 and i want to add subwoofer.
Now, here is dilemma. Should I go with REL B2 or JL f112.
I was told that i would need external crossover for JL's but than
i also heard that i don't need one. My room is 17"x11"x9".
Please, any information would be greatly appreciated.
kiza
I love my Rel B1, I do think it's the best all around sub I have owned, and I have tried a bunch or them.

But Audiofreak, have you owned a Paradigm, and used it with Paradigm speakers? There really is something to be said about synergies with certain gear that was designed together.

I do agree about the Rel's though, they are super flexible, and extremely easy to set up. I finally set mine on an Auralex platform and I was shocked that it actually made a difference.
Rels seem to blend spectacularly well with main speakers when set up right. JL's have always sounded very muscular in my experience which is great fun. I don't know how well they blend with mains.

These are sufficiently expensive that if you have room for full range speakers that would be an interesting alternative.
One question and one "answer"
First this is the first time I've heard of voicing a sub to match mains. Seems a bit of a contradiction?

As for the F112 I have found that I cant tel the difference between my receiver crossover and the onboard. I bought the F112 as I thought it seemed to work better than the REL but at the most this is a likely subtle thing with room and placement playing. Anyway the JL crossover seems to work fine.
Paul,why would it be a contriction to to voice a sub to mains?Most manufacturers who offer all types of speakers do this.
I adore my sub 12. Amazing clarity and accuracy at a fraction of the cost. I haven't even used the PBK yet.