Ball and socket connection with an acoustic seal and mounting interface for a hearing assistance device

A method, comprising:

• providing a receiver case configured to house a hearing assistance device receiver, the receiver case including a spherical receiver spout, the spherical receiver spout including an opening having a radially concave contour;
• providing a receptacle housing including a spherical socket adapted to mate with the spherical receiver spout to form a ball and socket connection;
• and
• providing a solid convex insert removably recessed within the spherical socket, the solid convex insert including a lip configured to establish a retained interference fit with a lip of the concave opening of the receiver spout when the connection is formed so as to create an acoustic seal therebetween.

A digital hearing assistance device, comprising:

• a housing;
• a digital signal processor within the housing;
• a receiver case within the housing, wherein the receiver case includes a spherical receiver spout and includes a hearing assistance device receiver, the receiver configured to be connected to the digital signal processor and further configured to play sound processed by the digital signal processor;
• and
• a sound tube within the housing, wherein the sound tube includes a spherical socket adapted to mate with the spherical receiver spout to form a ball and socket connection, and a solid insert removably recessed within the spherical socket, the solid insert including a lip configured to establish a retained interference fit with a lip of an opening of the receiver spout when the connection is formed so as to create an acoustic seal therebetween,
• wherein, after the receiver spout is mated with the sound tube, the receiver case is configured to be oriented at a desired angle with respect to the sound tube to conform to an inner surface of the housing.