An assembly for mounting a speaker to a surface includes a bracket having an elongated arcuate section and two end sections angled approximately perpendicular to the arcuate section. The end sections are attached on opposite sides of a speaker. A support device is provided, having a main body with a central channel, and channel guides running along each side of the central channel. The channel guides slidably retain the arcuate section of the bracket in the channel when the bracket is slid into the channel under the channel guides. A clamp is connected to the main body for clamping the bracket in place within the channel. A speaker can be mounted to the surface by attaching the bracket to the speaker, attaching the support device to the surface, sliding the bracket into the channel and moving the clamp to the locked position to lock the bracket in place.