Original sentence: There are really four types of power handling in loudspeaker drivers, including woofers: thermal (heat), electrical (both large nipples fairly high power levels are fed to a woofer for too long, even if not exceeding mechanical limits at any time
Edited sentence: The mechanical power handling limit is reached when cone excursion extends to its maximum limit.There are really four types of power handling in loudspeaker drivers, including woofers: thermal (heat), electrical (both covered above), mechanical, and acoustic.Thermal power handling limits may be reached when fairly high power levels are fed to a woofer for too long, even if not exceeding mechanical limits at any time