Today, Marcus reviews the ZMF Headphones Caldera Closed, which is a recently launched set of flagship closed-back 80m planar magnetic driver headphones. It is priced at $3499. Disclaimer: This sample was sent to me in exchange for my honest opinion. Headfonics is an independent website with no affiliate links or status. I thank ZMF Headphones for this opportunity. You can click here to learn more about the ZMF Headphones products I have previously covered on Headfonics. Note, that this article … Continue reading ZMF Headphones Caldera Closed Review