Embodiments relate generally to methods for customizing speakers in hearing protection earcups in conjunction with an amplifier so that the maximum speaker output may be capped, for example to acceptable OSHA or other such standards. By customizing such speaker(s), the maximum speaker output may be set precisely at the desired cap level. Thus, hearing may be protected, while also ensuring that maximum speaker output will not undershoot the desired cap level (which might negatively affect performance).
