An acoustic system , comprising: a housing comprising an acoustic element opening , the acoustic element opening comprising an inner edge extending from a first, outer surface of the housing to a second, inner surface of the housing; and an acoustic element comprising an acoustic element foam layer extending at least partially along a circumferential perimeter of the acoustic element, wherein the acoustic element foam layer is configured to engage the inner edge of the acoustic element opening when the acoustic element is positioned within the opening; wherein the acoustic element foam layer is compressed in a direction perpendicular to a central axis of the acoustic element when the acoustic element is positioned within the opening, such that an acoustic seal is created; wherein the housing comprises a removable upper portion , the removable upper portion comprising a housing foam layer configured to align with at least a portion of the acoustic element opening when the acoustic element is positioned within the opening, such that an acoustic seal is created; wherein the housing comprises an outer panel extending along a portion or an entirety of an outer perimeter of the housing, and wherein the upper portion is configured to provide an acoustic seal when installed or otherwise connected to a top surface of the outer panel; wherein the housing foam layer is configured to extend along less than all of an outer region of the upper portion and to extend along a front lower edge region of the upper portion, but is not located along a notch region of the upper portion; wherein the notch region is configured to align with a top central portion of the acoustic element when the housing is assembled. a housing comprising an acoustic element opening , the acoustic element opening comprising an inner edge extending from a first, outer surface of the housing to a second, inner surface of the housing; and an acoustic element comprising an acoustic element foam layer extending at least partially along a circumferential perimeter of the acoustic element, wherein the acoustic element foam layer is configured to engage the inner edge of the acoustic element opening when the acoustic element is positioned within the opening; wherein the acoustic element foam layer is compressed in a direction perpendicular to a central axis of the acoustic element when the acoustic element is positioned within the opening, such that an acoustic seal is created; wherein the housing comprises a removable upper portion , the removable upper portion comprising a housing foam layer configured to align with at least a portion of the acoustic element opening when the acoustic element is positioned within the opening, such that an acoustic seal is created; wherein the housing comprises an outer panel extending along a portion or an entirety of an outer perimeter of the housing, and wherein the upper portion is configured to provide an acoustic seal when installed or otherwise connected to a top surface of the outer panel; wherein the housing foam layer is configured to extend along less than all of an outer region of the upper portion and to extend along a front lower edge region of the upper portion, but is not located along a notch region of the upper portion; wherein the notch region is configured to align with a top central portion of the acoustic element when the housing is assembled. <EOS>