Good new and bad news, lots of sub to choose from is the good news. A space that large is better with a ported sub and most likely multiple subs for HT. You may get by with an SVS PB 13 Ultra, Rythmik FV 15, PSA XV 30, HSU 15 in. sub and some other brands. Most likely you may get close to 20 Hz with any kind of spl worth something. You will not be shaking the room.
Klipsch RF 7 based HT 7.4, Pioneer SC 35, Acurus 200 Five, Dayton 18 Ultimxa Dual Sub Cab(2), Dayton 18 Ultimax Large Vented Sub Cab (2), on Berhinger I Nuke DPS amps, Samsung BDP F 7500, Asus/My Book Live HPC 4 TB
Yaquin VK 2100 amp, McIntosh XR 5 speakers, Samsung BDP F 7500