Ohm's Wall is an interactive musical sculpture made of wood, steel, fifteen light reactive Atari Punk Console synthesizers, and seventy-five skateboard bearings. The instrument consists of five vertical rods with three independent axes of rotation within a steel frame. On each vertical axis there are four inverted wooden stepped pyramids linked together, each with their own bearing and axis of rotation, forming the four faces of a square. Each grouping of four pyramids around each vertical axis contains one Atari Punk Console embedded within one of the pyramids. The kinetic rotations around the seventy-five possible points of rotation requires a viewer to set them into motion by physically spinning a segment of the piece, thus linking individual or group user interaction within the viewer's aesthetic experience of the piece, both visually and sonically. Spinning one of the fifteen major vertical axes creates a doppler-effect with the Atari Punk Console contained within each cluster each time the speaker spins around its axis and passes by the viewer, resembling the effect of fifteen rotary Leslie speakers. Particularly interesting audio effects and simultaneous visual geometric phenomenon can be achieved by spinning the various clusters of cubes in particular patterns--the self-discovery of which is encouraged of the viewer and provides an impetus for sustained and repeat interaction with the piece.