Can you recommend a good mid-range pair of headphones that are semi-open with low impedance, and a good build quality? Need something around 30-40 ohms and not over $300. The Kennerton Vali headphones are close to what I'm looking for but way over my budget. The headphones I have now have too high impedance and they have a plastic creak with every movement, so they sound good if your head's not moving. I'd like to switch to low impedance because it would provide listening diversity and they would match the power of my audio interface better. I've been waiting for something of this sort to show up in the drops, but it's been a couple years now. All I've seen are really expensive options, or too cheap to be quality options.