Resonator design for detectors and sounders

An alarm condition detector assembly, comprising

• a detection device configured for detecting an alarm condition and generating an alarm signal;
• signal processing circuitry configured for receiving the alarm signal and generating an output signal indicative of the alarm condition;
• a sound generating device coupled to a sound enhancement device, the sound generating device configured for receiving the output signal and outputting an audible alert signal into the sound enhancement device, the sound enhancement device further comprising:
• a cylindrical portion having a tubular body from an open first end to an opposed second end and an interior cavity longitudinally coextensive with the tubular body;
• a first elongated portion coupled to the cylindrical portion, the first elongated portion including a first body portion having a first cavity that is coextensive with the first body portion, the first body portion extending from an open third end to an open fourth end;
• and
• at least a second elongated portion coupled to the cylindrical portion, the at least second elongated portion including a second body portion having a second cavity that is coextensive with the second body portion, the second body portion extending from an open fifth end to an open sixth end;
• wherein the third end is coupled to the second end to create a continuous opening from the first cavity and the interior cavity;
• wherein the fifth end is coupled to the second end to create a continuous opening from the second cavity and the interior cavity;
• and
• wherein the cylindrical portion and each of the first and at least the second elongated portions comprise a length of a quarter wavelength of a predefined frequency.