Playback Device with Acoustic Volume Coupling Vent

A method of performing a pressure leak test of a playback device, the playback device comprising:

• at least one first transducer;
• at least one second transducer;
• a housing comprising:
• a first cavity having a first volume, the first cavity housing the at least one first transducer;
• a second cavity having a second volume, the second cavity in fluid communication with the at least one second transducer;
• and
• a vent fluidly coupling the first cavity and the second cavity, the vent defining an aperture having an open area;
• and
• an acoustic resistive mesh filter coupled to the vent and positioned to cover the open area of the aperture and thereby resist acoustic flow through the vent;
• the method comprising:
• introducing, via an input valve of the first cavity, a positive air pressure into the first cavity of the housing over a period of time such that the positive air pressure extends into the second cavity via the vent;
• and
• measuring an air pressure within the first cavity over the period of time.