Will sub help my Proac 1SCs fill new larger room?


I'm moving from a 10x11 room to a larger room, maybe 15x15 or 15x20, when I buy a house. My 1SCs without sub have plenty of bass in my small room. With a good sub, can they work in a larger room? How large?
Straight ahead jazz, fairly loud not blasting, Music Reference RM-9, CJ PV-5.
Thanks very much for your thoughts.
river251
Bob, I don't know much about REL so don't know what you mean by the REL philosophy.

I'm not clear what you are suggesting for my One SCs?

Thanks
Jim
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Hello River251. I have echo busters on the walls and free standing Furutech screens between the SC speakers and at the first reflection points. I do high pass via the NHT sub amps. the subs themselves are in the front corners an are on spiked amp stands supported by steering wheel covers.
Thanks much guys. Buconero117, what treatments are you using, and do you have your One SCs running full range or high passed?

What subs do you guys recommend, are the RELs still favored?

Thanks
Jim
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Since your spekaers are rated down to 30Hz, I wonder how much difference it would make. That is, you might not want to blend in the sub any higher than that, so there may not be noticeable improvement.

That said, mine go to 40Hz (in a larger room than you describe) and I think there's a tremendous difference. See if you can get a loaner and give it a whirl, what's to lose?
Yes, I have dual subs mated to my 1SC's. Room is 12x16 and heavily treated. I had a single sub but found it lacking so I went dual. Great sound.