Sony XM4 latest firmware (2.6) has totally messed up the sound - anyone else found this?

eBrooker

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Oct 24, 2024
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Anyone else notice the difference in sound after updating the firmware to 2.6? The sound is horrible now when you reach 75% - it goes loud but the bass disappears and it's left with quite a horrid and harsh mess.

I was totally in awe of these headphones before, not I just want to throw them in the bin.

(Anyone know how to revert back to previous firmware or factory firmware? I carried out a factory reset but that does not revert the firmware - that in itself should be illegal as it means obsolescence can be introduced through a firmware 'upgrade' which is actually a downgrade)
 

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