An amplifier is provided having an electrically conductive structure. In some embodiments, the operations can include receiving first application data from a first application, where the first application data describes a first characteristic of first content from the first application. The device further includes a plurality of linking members attached to the mouth end by an attachment means and a plurality of straps. Each report may be encoded to obtain code bits, which may then be mapped to a sequence of modulation symbols. Apertures are formed through the coating to enhance fluid flow to and from the core, and to provide exposure of the surface of the core to extraocular muscles, and for sutures. The panel loudspeakers are arranged seamlessly side-by-side and are rigidly connected with one another along their respective edges with a high shear strength.