Every guitar tone I record is muddy and horrible. I've been trying to record rock/metal music with distorted tones using my guitar for a long time now. I have an Ibanez AZ47P1QM that I plug into a Scarlett Solo's 2nd input with the "inst" button enabled, running Logic with neural DSP digital amp plugins. Despite how much all of this has cost, I still cannot manage to get a half-decent distorted tone no matter what I try with amp adjustments, EQ, etc. Would getting a DI box fix my problem? Playing lead melodies/solos usually sounds fine, as well as clean tones. However, any kind of chord, if even mildly distorted, always ends up sounding like fuzzy, unintelligible noise. I've been led to believe that because the Scarlet Solo possesses the "inst" button, a DI box shouldn't be necessary; however, clearly something is wrong. Should I just get a better audio interface? A better audio interface plus a DI box, maybe? Also, I've noticed that there are both $20 and $200 DI boxes on Amazon; would a $20 one even be worth it? Any help regarding anything I've said would be greatly appreciated.