A system for electrically stimulating a first cochlear implant includes (a) an electrode contact simultaneously transmitting a first electrical stimulus from stimulation hardware to a first ear fitted with the first cochlear implant and a second stimulus from the stimulation hardware to a second ear, the second stimulus being one of electrical and acoustical； (b) a component establishing a plurality of frequency-to-electrode maps used to determine the first electrical stimulus； (c) a user-interface component permitting a user to adjust the frequency-to-electrode maps and receive the corresponding auditory stimulation in the first cochlear implant； (d) a component storing the frequency-to-electrode maps； and (e) a display component displaying a visual representation of multiple frequency-to-electrode maps to facilitate a comparison between the frequency-to-electrode maps in making a determination by a user of a most desired frequency-to-electrode map.
