audio engineering

I'm looking for Plannar Headphone and Headphone amp for mixing Currently I am using HD 600 and Apogee Duet 3 I was planning to buy Neve rnhp and Avantone Pro Planar But is there any better choice? Plz Let me know My Budget is about 3000 dollar or less Thank you

Hello everyone I have been interested in music technologies for an average of 2 years, I have been doing both music production, recording and mixing. I want to have all the details about sound and music technologies, I don't want to have a subject I skipped, I created a programme of my own, but...