Hello! I've bought a new Casio Privia PX-160 some months ago and I am wondering why it doesn't sound as good in my headphones as in I hear on various YouTube reviews (I used the same headphones on piano and on my PC to listen and compare). Sound isn't bad, it's just way less clear, especially the bass notes. I also checked some other headphones I have at home with different impedance and sound coming from jacks on the front is more or less the same. Can anyone please tell me what's the