To just jump and add to the debate, I have the Ether Flow in front of me now along with the HD650 and having compared them both extensively I agree completely about how the Ether F handles treble. The HD650 also resolves micro detail is also more resolving and actually has a cohesive response where the Ether Flow is a bit of a rollar coaster and pretty rough up top. I'm all premium built products and I get that it adds to the cost but the sound of the Ether Flow IMO isn't worth the price tag at all. I actually liked the Ether C better for it's better balance but still it isn't on the level of a well driven HD650. People can spend their money on what they like but for me I don't think it is worth it and the guy who sold me his Ether Flow actually hates them for a similar reason. I do love the build but I personally think Dan should find some experienced guys and use them as beta testers. I know another forum who has a lot of experience has shown interest! It would really benefit Mrspeakers as a company I'm I'm confident that it would get the products sounding on their price point I believe. Sadly I find a lot of criticise comments being mobbed which really doesn't help the company as the critisom is real and can help them improve, just my 2 cents.