A simple experimental method has been developed to equalize a one-dimensional sound field using acoustic energy density. Energy density is estimated using two methods: the two-microphone transfer-function method and the two-microphone finite-difference method. An equalization filter is manually configured for each using a digital parametric equalizer. The results of the two estimation approaches are compared. Equalization filters are similarly implemented for sound pressure measured at discrete points in the field and for spatially averaged sound pressure. Results of the approaches are compared and benefits of the energy density method are discussed.