An enclosure assembly, comprising: a first enclosure element; an electro-acoustic transducer coupled to the first enclosure element; and a second enclosure element, the first enclosure element and the second enclosure element configured to capture a portion of an automobile frame there between and to define an acoustic volume; wherein the portion of the automobile frame comprises a door frame, the door frame disposed between an inner door portion and an outer door portion; the first enclosure element is configured to be disposed within a first volume defined between the door frame and an inner door portion; and the second enclosure element is configured to be disposed within a second volume defined between the door frame and an outer door portion; wherein: the first enclosure element comprises a first enclosure housing having a perimeter, the perimeter of the first enclosure housing configured to encompass an opening defined by the door frame on one side of the door frame, the door frame and the first enclosure housing defining a first enclosure volume; and the second enclosure element comprises a second enclosure housing having a perimeter, the perimeter of the second enclosure housing configured to encompass the opening defined by the door frame on the other side of the door frame, the door frame and the second enclosure housing defining a second enclosure volume, the first enclosure volume and the second enclosure volume defining the acoustic volume. a first enclosure element; an electro-acoustic transducer coupled to the first enclosure element; and a second enclosure element, the first enclosure element and the second enclosure element configured to capture a portion of an automobile frame there between and to define an acoustic volume; wherein the portion of the automobile frame comprises a door frame, the door frame disposed between an inner door portion and an outer door portion; the first enclosure element is configured to be disposed within a first volume defined between the door frame and an inner door portion; and the second enclosure element is configured to be disposed within a second volume defined between the door frame and an outer door portion; wherein: the first enclosure element comprises a first enclosure housing having a perimeter, the perimeter of the first enclosure housing configured to encompass an opening defined by the door frame on one side of the door frame, the door frame and the first enclosure housing defining a first enclosure volume; and the second enclosure element comprises a second enclosure housing having a perimeter, the perimeter of the second enclosure housing configured to encompass the opening defined by the door frame on the other side of the door frame, the door frame and the second enclosure housing defining a second enclosure volume, the first enclosure volume and the second enclosure volume defining the acoustic volume. the first enclosure element comprises a first enclosure housing having a perimeter, the perimeter of the first enclosure housing configured to encompass an opening defined by the door frame on one side of the door frame, the door frame and the first enclosure housing defining a first enclosure volume; and the second enclosure element comprises a second enclosure housing having a perimeter, the perimeter of the second enclosure housing configured to encompass the opening defined by the door frame on the other side of the door frame, the door frame and the second enclosure housing defining a second enclosure volume, the first enclosure volume and the second enclosure volume defining the acoustic volume.