There are some speaker systems which can reach that low with small drivers, but they are pretty unusual. You either need a very carefully designed enclosure or some pretty exotic drivers...

Look up the "straight8" or "whamodyne" (2 M's ?) speakers on the net for an interesting read. There are some better examples but I can't think of them right now.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8