Two small RELs or One Larger Sub


What would you do? 

Dedicated music/listening room -- 16 x 25, with 10 foot ceilings, no openings to other areas.
PSB Imagine T2s
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Strictly 2 channel system.  

I'm looking to add air, space, realism.  Ultimate bottom end is not as important as all the other stuff a good musical sub does for full spectrum floor standers. 

I saw that Upscale had the REL S/2 on sale for $1k ea.  I was thinking it might be prudent to go with 2 of these as opposed to going with one REL S/3 or S5. 

Thoughts? 
128x128jbhiller
@blackspider777,  I bought an REL T9i and it's wonderful.  To even things out, I brought in a Sumiko S5 for the other corner.  All is great!
I just purchased two REL 212/SE subs. was going to install them last week but need a buddy to help get them upstairs as they are big and heavy! Once installed I will follow break in instructions, but not totally positive how long that will take.
1 sub good. 2 subs better. 3 better than that! 4 is best- this allows you to kill standing waves in the room.