Can someone confirm if the outputs at the back mute when headphones are plugged in?

Brainwavz Hybrids are mostly pleather. They have velour only on the part that touches skin so maybe they could work?

Greetings. I bought these since they were down to 120€. Build quality is very nice and love the low weight. Out of the box mid/upper bass sounds boomy and upper mids/low highs slightly harsh. EQ'd the bass to more reasonable level and hoping burn in does something for the upper range. Another...