What should my peak dB be?

Could you please elaborate on what you mean by 'peak dB'? Are you referring to the maximum decibel level of a particular sound or audio output? If so, the optimal peak dB level can vary depending on the context and the purpose of the sound. For instance, in music production, a peak dB level of around -3 dBFS (decibels Full Scale) is often recommended to avoid clipping and distortion, while for voice recording, a lower peak dB level may be more appropriate to ensure clarity and intelligibility. It's important to carefully monitor and adjust the peak dB level to achieve the desired audio quality. Could you provide more context or specify the scenario you're asking about?