My apologies I meant to ask for Cubic Feet not square feet. So celing height is important. It’s a volume thing. The size of a 30Hz sound wave is approximately 37 feet in every direction from the sub. So the instant the note plays the sound will fill the room bounce off the walls and hit them a second time instantly. A 70hz note is about 16 feet. Which will fill your room instantly. The two subs you are considering will be more than adequate to fill your room with deep and intense bass. Based on the ceiling height, placement of these two subs will be important for reducing the effects of standing wave nulls. A few photos of the room will help us provide placement option recommendations.
This will be a major upgrade and you may want to install seatbelts in your main listening position! It will feel like a Disney ride.
A recommendation. If you don’t have a calibration microphone and a boom stand. Please consider getting one. Using (REW) which is free and the measuring microphone you can post plots of the Subs Frequently Response and we can use that data to help you dial in your setup to get the maximum possible performance.
Examples of what you will need: (A laptop or IPad Pro to run the software REW).
https://www.roomeqwizard.com/
miniDSP UMIK-1 Omni-Directional USB Measurement Calibrated Microphone
https://a.co/d/cFAMssx
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