We offer Buick full size dash speakers that are designed to fit in the original dash location of your full size Buick and provide you with stereo sound from a single, mono location.We offer both dual dash mount and dual voice coil speakers. The dual dash mount speakers consist of two, 3.5" speakers mounted on a board that will fit in your original speaker location. The dualvoice coil Buick full size speaker is a single speaker that has two tweeters on it, one for the left channel and one for the right channel. The dual voice coil speakers have a 140 watt peakpower rating and we recommend them for most applications because they provide more mid-range response. The main difference is on the dual voice coil speaker, the center is mid-rangecone whereas on the dual dash mount, the center is board, which does not make any sound.