Subwoofer for large room

Dear Fellow Travelers,

One of my systems is used in a largish living room (80 sq.m, 3.5 m high, 280 cubic meters; 860 sq.-11.5-9900 cubic, in foot/feet).

I’m looking for a subwoofer (most likely: two) to add to my speakers. I mostly listen to classical music and acoustic jazz and would love to have more of the 32 feet principal pipes, the cannon shots, the atmosphere and suchlike :-).

Please don’t recommend subwoofers priced above USD 5000 each.

Thank you.