Our 1968-1979 Fairlane dual voice coil speaker is a single 4x10 dash speaker that has two tweeters on it to give you stereo sound. One tweeter will handle the left channel while the other will handle the right channel in order to give you the 2 in 1 effect. This 1968-1979 Fairlane Dual Voice Coil Dash Speaker is the one we recommend for most vehicles. In addition, this speaker has more cone surface area to provide better mid-range response. On the dual dash mount speakers, including the Kenwood, the center of plate is not creating any midrange sound whereas on the dual voice coil speaker it is.