Speaker spikes serve ascentially two purposes. The first being they provide a contact point w/ considerably less surface area thus increasing the stability of your speakers.
One might ask why is this important? Think of your tweeters speakers w/ small piston areas designed to move only a few thousands of an inch any movement of the cabinet will alter the sound.
The second purpose of spikes is to allow a focal point for resonance energy. That being secondary vibrations from the cabinet after the speaker initionally pulsates. By mating the spikes w/ the speakers this energy travels from the large part of the cone to the point (or moving from greatest resistance to least) in wich it is disopated into the floor.
One might ask why is this important? Think of your tweeters speakers w/ small piston areas designed to move only a few thousands of an inch any movement of the cabinet will alter the sound.
The second purpose of spikes is to allow a focal point for resonance energy. That being secondary vibrations from the cabinet after the speaker initionally pulsates. By mating the spikes w/ the speakers this energy travels from the large part of the cone to the point (or moving from greatest resistance to least) in wich it is disopated into the floor.