Matching subwoofer

Thankyou Melvin, I had thought about it but still open.  Riley, the room is still lively but as much a problem now. The kefls50 in that room at the time were really not well suited. I know the room is only tolerable but was comes into play. Thankyou all for your comments.

anyone compared the rel t7i to speedwoofer, hsu or rhythmic l12? Trying to find best value. 

Buy a pair of rel t7i, set them up next to your front mains and give it a listen. If they do not do the trick simply return them. But more likely what will happen is, you will lose the attitude about "best value" and be gaining a new attitude that is more like "how long will it take to save enough dough to buy 2 more". Or maybe just the 2 will put you where you want to be. Either way, when you try this, you will be so happy that returning them will be out of the question.

@brianportugal 

 Riley, the room is still lively but as much a problem now.

huh ?         you should still consider room treatments.   

buying different equipment / speakers isnt going to fix the room issues.

I just received the first of two REL t7i's yesterday; the second got separated in shipping. I bought these to augment my B&W 606 S2 bookshelves. It took no time to get it set up and the transformation in  soundstage and imaging was absolutely amazing. It is very easy to implement into both a 2 channel stereo or as a sub for HT. There are two ways to connect it and both at the same time. One connector goes to your right and left channel amp post and another RCA for a normal LFE connection. With just the one I am utterly flabbergasted! I know that after some run in and tweaking placement I will have an amazing system! I am using a Parasound integrated which has crossover settings on it. Right now I am using it to set my crossovers but I'm thinking I should probably use the settings on the sub itself. If it makes it any better I don't know if I can handle it! Get the REL. You will be amazed and satisfied. Get two and you'll be floored!

Have fun dialing it in and let us know what crossover point you find that blends best with those bookshelves. Curiosity-thanks.The final sound should be pretty enjoyable. Good luck.