Abstract: The invention provides a speaker having a number of features that cooperate to provide a small speaker 10 having a high sound pressure level output capability (volume), a wide frequency range, in particular from below 200 Hz to 20,000 Hz, low distortion, and that is magnetically shielded. The speaker 10 is suitable for mounting in, for example, a television where spaces are confined and stray magnetic fields are undesirable, yet high output is desirable and a wide frequency range is desirable to avoid the need for separate middle frequency (midrange) and high frequency (tweeter) speakers.

Abstract: An acoustic transducer is secured to a plate having a front side and a back side. The transducer has an outer body with a front portion and rear portion and is sized to entirely fit inside an electrical gang box. A front-to-back enlarged opening in the plate is sized to receive the front portion of the transducer body. The transducer is secured to the plate so that the front portion is located within the front-to-back opening of the plate and is generally flush with the front side of the plate and most of the transducer body including the rear portion extends behind the plate into the gang box.