An exemplary sound processor 1) sets a current steering range for a stimulation channel defined by first and second physical electrodes communicatively coupled to an auditory prosthesis to be less than an entire physical range of the stimulation channel, 2) maps each frequency included in a frequency band associated with the stimulation channel to a virtual electrode included in a plurality of virtual electrodes included in the current steering range of the stimulation channel, 3) identifies a feature of an audio signal, 4) identifies a virtual electrode included in the plurality of virtual electrodes and that is associated with the identified feature, and 5) directs the auditory prosthesis to apply electrical stimulation representative of the identified feature to a stimulation site associated with the identified virtual electrode by concurrently stimulating the first physical electrode with a first current level and the second physical electrode with a second current level.