Please add 'pre-gain' or 'gain-offset' for each PEQ profile. Currently, volume limit is the only way to apply pre-gain but even with a same set of speaker, I often apply different PEQ profiles that have different maximum gain.
For example, here is a link to how Qudelix 5K implements PEQ in their app.
https://www.qudelix.com/blogs/5k-dac-amp/equalizer
For example, here is a link to how Qudelix 5K implements PEQ in their app.
https://www.qudelix.com/blogs/5k-dac-amp/equalizer