A high-volume large diaphragm comprising a hat shaped structure, the hat shaped structure comprising: a. a wall ; wherein the wall is shaped as a hollow frustum; the wall provides a first end with a first diameter and a second end opposite the first end and having a second diameter; the second diameter being greater than the first diameter; the wall including an exterior surface and an interior surface; b. a rim ; wherein the rim is provided at the second end of the wall ; the rim comprising a circular flange extending outwardly from the wall ; c. a cap ; wherein the cap is formed across the first end of the wall ; and d. a pair of support sections ; wherein the pair of support sections are formed on the wall ; the pair of support sections having a solid projection that protrudes from the wall ; the pair of support sections comprising an exterior support section and an interior support section ; characterised in that the exterior support section protruding only from the exterior surface of the wall and not from the interior surface of the wall ; the interior support section protruding from the interior surface of the wall and not from the exterior surface of the wall ; the exterior support section and the interior support section being vertically offset relative to each other. a. a wall ; wherein the wall is shaped as a hollow frustum; the wall provides a first end with a first diameter and a second end opposite the first end and having a second diameter; the second diameter being greater than the first diameter; the wall including an exterior surface and an interior surface; wherein the wall is shaped as a hollow frustum; the wall provides a first end with a first diameter and a second end opposite the first end and having a second diameter; the second diameter being greater than the first diameter; the wall including an exterior surface and an interior surface; b. a rim ; wherein the rim is provided at the second end of the wall ; the rim comprising a circular flange extending outwardly from the wall ; wherein the rim is provided at the second end of the wall ; the rim comprising a circular flange extending outwardly from the wall ; c. a cap ; wherein the cap is formed across the first end of the wall ; and d. a pair of support sections ; wherein the pair of support sections are formed on the wall ; the pair of support sections having a solid projection that protrudes from the wall ; the pair of support sections comprising an exterior support section and an interior support section ; characterised in that the exterior support section protruding only from the exterior surface of the wall and not from the interior surface of the wall ; the interior support section protruding from the interior surface of the wall and not from the exterior surface of the wall ; the exterior support section and the interior support section being vertically offset relative to each other. wherein the pair of support sections are formed on the wall ; the pair of support sections having a solid projection that protrudes from the wall ; the pair of support sections comprising an exterior support section and an interior support section ; characterised in that the exterior support section protruding only from the exterior surface of the wall and not from the interior surface of the wall ; the interior support section protruding from the interior surface of the wall and not from the exterior surface of the wall ; the exterior support section and the interior support section being vertically offset relative to each other. <EOS>