Abstract: A low frequency loudspeaker driver has a replaceable diaphragm assembly permitting a user to re-cone a blown woofer when in the field. In one embodiment, the peripheral edge of a loudspeaker driver diaphragm comprises a flexible surround and is releaseably supported within a basket having a peripheral mounting flange clamping surface to which a rigid ring-shaped clamping member or gasket is releaseably attached. A parts kit includes a replacement cone assembly with a frustoconical cone having an attached annular surround at the large cone end and a flexible spider attached near the small cone end, adjacent the attachment point for the cylindrical voice coil former. The spider includes a rigid ring mounted at the spider peripheral edge and dimensioned to be removably fastened to the driver basket.