Two subs or not Two subs?


I have been contemplating adding a Rel T-3 Or two.To my vinyl only 2 channel set up.

Proac responce 2
TAD Hibachi-II Mono Blocks
PS Audio GCPH
Pro-Ject 2 Xperience with an Ortofon HMC 20 cartridge

My room is 20'L x 15'W x 10'H and the speakers are on the short wall.
First are two subs better than one. what are the benefits of having two vs. one. Can I get by with one. Thank You
128x128wilson667
In the review of the T series I read the lowest crossover point was 60 Hz; they must have corrected this on the T3; something like this one: http://www.audiogon.com/cgi-bin/cls.pl?homesubw&1321761237&/Rel-Stadium-II-fast--detailed- would be all you would ever need. One was just sold for $795. I used one of the Stadium 2s for a while before getting a second one; I would rather have one better one than 2 lesser ones. The smaller S series are also good.
Used RELs (ar any good sub) can be the way to go...I have a room about the size of the one described, and my single REL Q150E (circa 2001 10" forward firing) sounds great set around a third of its volume knob setting...adjusted slightly up or down here and there depending on the recording (I put a "chicken head" knob on the gain pot so I can easily tell what's what without turning the sub around). 2 RELs like this seem like overkill, but I'd buy another Q150E if I found a used one cheap enough just because I like it so much. Interesting article I read recently in a UK hifi mag about a REL sub...the writer was listening to some mandolin music and took the sub in and out of the system...you wouldn't think mandolins would have any low frequency information, but the music sounded much better with the sub on...go figure...I've done similar experiments and am amazed at how low the output on a sub can be and still add MOJO to whatever I'm listening to.
Are Rel's the best option for high level connections right off of the amp or are their other brands with the same type of connection that work better. Price range $0-$800
I used a single REL for quite some time but always found it directional, no matter where I placed it in the room. Meaning, that I could always detect just where the bass source was located.
I now have a pair of ML Descenti's and the integration with the main 2 channel speakers is great and they are so much more 'tuneable' than REL's. Descenti are not cheap but highly recommended.