VST, AU & AAX multi-band EQ plugin

Need a simple multi-band EQ plugin made to correct inaccuracies in signal reproduction of external hardware. Have frequency plot and data for said hardware that will be used to create a frequency curve for the EQ that makes the output signal as accurate as possible.

The UI will be extremely basic, basically a ON/OFF switch since all adjustments are predetermined.

Have an UpWork posting for this job at

Thank you for your time!