Thanks for the advice guys. I will take a better look at the KZ ZS10 Pro. Do you think I will get hissing with the ZS10 Pro? Because I had a KZ ED9 for a short time and it was hissing too much connected to my devices. Is it possible to guess what will happen based on impedance and sensitivity...

I'm looking to buy a new pair under $40 for listening mostly to Symphonic Metal and Rock stuff in general. I'm new to this but it seems people recommend neutral headphones for Rock. After some searching, I think the best I could find was the TIN T2 due to it's supposed good resolution and...