Abstract: Embodiments of apparatuses, systems, and methods for acoustic energy conversion are described. The acoustic energy conversion may be achieved using an acoustic wire in a voice coil. The acoustic wire may be a carbon nanotube copper composite voice coil wire. In one technique, the acoustic wire may be formed by using a copper-in-tube process that includes use of an electroless deposition process. In another technique, the acoustic wire may be formed via an electrophoretic deposition process.