The speaker's smoothly curved surface permits it to blend in with virtually all modern buildings. A built-in matching transformer permits the speaker to be used for both high-impedance and low-impedance (8 Ω) applications. The impedance can be easily changed from outside the speaker. A splash-proof design enables the BS-1030 to even be installed outdoors, in a location not directly exposed to the elements, such as under eaves. Mountable to wall surfaces directly or using with supplied or optional mounting brackets.