What if I do that and I still don't get the punch I wanted?
I don't know. I'm just encouraging you to figure out whether or not your room space is too much for the subs you have. If you don't have enough sub, you have the wrong tool for the job.
Audioholics reviewed the SB3000 and rated it as suitable for a medium-sized room, which is 1,500 to 3,000 cubic feet
SVS 3000 Series Powered Subwoofers Review
We reviewed the SVS 3000 series subwoofers which, in many ways, may be their best subwoofer series to date. Read our in-depth review to find out why we like the SVS 3000 series subwoofers so much.
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Your room is 3,700 cubic feet without the additional space added in. My total room size is 5,000 cubic feet, and I wouldn't buy the SB3000's to run in my space.