A user is allowed to select an acoustic equalizer setting from among a plurality of predetermined acoustic equalizer settings. Each of the vertically stacked containers includes a plurality of vented protuberances extending into the interior of the each stacked container thereby providing channels for passage of a carrier gas between adjacent vertically stacked containers. The hole injection layer comprising the dendritic molecule containing metal phthalocyanine has good adhesion to an electrode and improved hole injection ability. The ASIC further includes a field programmable gate array function coupled to the IO configuration function.