Patent ID: 9357291
Filing Date: 2016-05-31
CPC Classification: H04R

Claim Text:
1. A mass port comprising: an insertion portion having an elongated cylindrical shape having a longitudinal axis and configured to be inserted into a speaker port on a rear plate of a driver, the insertion portion including a diameter between 2 millimeters and 5 millimeters and a length between 3 millimeters and 6 millimeters; a head portion having a disc shape with a front side and a rear side, the head portion integrally coupled with the insertion portion such that the insertion portion extends from the rear side of the head portion, the head portion including a diameter between 5 millimeters and 10 millimeters, the head portion further comprising: an air slot that runs through a center of the head portion and a center of the insertion portion along the longitudinal axis of the insertion portion, the air slot including a diameter between 0.75 millimeters and 2 millimeters.