[Quoth]

Talking speech only needs 300 Hz to 2500Hz
Music & drama needs at least 80Hz to 10,000Hz, though 30 to 15,000 is noticeably better. Increasing the range to HiFi 20 to 20,000 makes a tiny difference, and inaudible to most people.

Small cheap speakers in a small box may do about 400 to 8,000Hz. The speaker diameter and box size sets the lower limit and the weight & stiffness set the upper limit, hence some speakers 8" to 10" and 13"x8" had small stiff cones also on the voice coil and hiFi may have two or three speaker drivers in the cabinet.