A low-voltage electronic device receptacle may include a back wall, one or more side walls extending from the back wall, and a flange extending outward from the one or more side walls, wherein the back wall includes a forwardly-extending generally convex protrusion making up greater than 10% of the back wall. An enclosure for installing a speaker in a building structure having first and second support members and an outer layer may include a receptacle including a back wall, one or more side walls, and a flange extending outwardly from the one or more side walls, wherein the receptacle may be positioned between the first and second support members, the back wall includes a generally convex protrusion extending toward the outer layer, and the speaker may be mounted to the outer layer and a portion of the speaker may deflect at least a portion of the protrusion away from the outer layer.