IR for head phones

Hi i offen practice whith head phones, why cant anny one create som kind of IR that simulates different head phones? example: i use a rigg that is created for live performance (no reverb, no stereo) but when i practice whith phones it sounds dull and flat, can an IR that simulate for example sennheiser hd 650.

Check this site out: GitHub - jaakkopasanen/AutoEq: Automatic headphone equalization from frequency responses

You can find your EQ curve for your specific headphones and apply the EQ using a 9-band EQ block.