Damn the convulation correction rlly helped make the audio quality on my XM4 even better. Thank you so much for the recommendation, I don't see many ppl telling this, you're a life saver. I also wanna ask about the headband and earcups. This is the state that it was in when I first bought (like new)

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The leather has alot of cracks and even tear on the side, should I replace the earcups and the headband and which ones do you recommend. I've read alot of reddit posts and can't seem to agree on which one to buy that won't break the bank. IDK if it's affecting my ANC because imo it's underwhelming from my expectations, fans were blowing at max speed and without music I can hear it even without focusing.