The wire in a voice coil is usually made of copper, though aluminum, and rarely silver, may be used. Voice coil wire cross sections can be circular, rectangular, or hexagonal, giving varying amounts of wire volume coverage in the magnetic gap space.

The lowest-priced speaker systems and most drivers are manufactured in China or other low-cost manufacturing locations. Although the manufacture of drivers has become largely commoditized, the fabrication and subsequent sale of finished speaker systems still carries high profits. Partly for this reason, manufacturers are increasingly combining power amplifier electronics (a typically lower profit item) with finished speaker systems to create powered speakers with an overall higher market value.[citation needed]

Wireless Outdoor Speakers