Large Speaker spikes (set of 4)

By rigidly coupling a loudspeaker enclosure to a floor by means of a spiking system, it is possible to dramatically improve clarity, stereo imaging and tighten up the bass response. This is particularly effective on flimsy flooring and thick carpet. Includes 4 toes, 4 threaded inserts and 4 jamnuts. Requires 1/2" hole and 10 mm allen wrench for installation. Dimensions: • Spike: 3/4" L x 5/16" dia. • Thread on spike: 1-3/8" L x 3/8" dia. • Insert: 1" L x 1/2" dia.